WO2023157101A1 - Information processing device, information processing method, program, and recording medium - Google Patents

Information processing device, information processing method, program, and recording medium Download PDF

Info

Publication number
WO2023157101A1
WO2023157101A1 PCT/JP2022/006027 JP2022006027W WO2023157101A1 WO 2023157101 A1 WO2023157101 A1 WO 2023157101A1 JP 2022006027 W JP2022006027 W JP 2022006027W WO 2023157101 A1 WO2023157101 A1 WO 2023157101A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
volume
output
noise level
detection unit
Prior art date
Application number
PCT/JP2022/006027
Other languages
French (fr)
Japanese (ja)
Inventor
圭吾 澤藤
Original Assignee
パイオニア株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to PCT/JP2022/006027 priority Critical patent/WO2023157101A1/en
Publication of WO2023157101A1 publication Critical patent/WO2023157101A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers

Definitions

  • the present invention relates to an information processing device, an information processing method, a program, and a recording medium.
  • a navigation device provides advance route information for an intersection to be turned next, traffic congestion information, etc. on a road to be traveled by voice in order to guide the user on a route to a destination set by the user.
  • voice guidance is provided at a volume selected by the user from among several levels of volume predetermined. It may occur that the guidance cannot be heard or that the guidance is misrecognized.
  • a technique for controlling the volume of voice guidance based on the noise level inside and outside the vehicle so that the voice guidance can be heard even under noisy conditions during driving see, for example, Patent Document 1).
  • a microphone placed inside the vehicle is used to detect the magnitude of noise generated inside and outside the vehicle, and the volume of voice guidance is controlled based on the magnitude of the noise.
  • the microphone placed in the vehicle picks up the voice of the voice guidance of the navigation device as noise, the volume of the voice guidance changes during the guidance, causing the user to One example is the problem of difficulty in hearing voice guidance.
  • a main object of the present invention is to provide an information processing device, an information processing method, a program, and a recording medium that perform control.
  • the invention according to claim 1 provides a noise detection unit for detecting the noise level of sound inside the vehicle, and an audio detection unit for detecting whether or not audio is being output to the user. and, when a detection result indicating that the sound is not output to the user is received from the sound detection unit, the volume of the sound is set based on the noise level, and from the sound detection unit and a volume control unit that does not set the volume of the sound based on the noise level when receiving a detection result indicating that the sound is being output to the user. be.
  • the invention according to claim 2 includes a noise detection unit for detecting the noise level of sound inside the vehicle, and a sound for detecting whether or not a sound is being output to the user.
  • a detecting unit in the case of the noise level detected during the period in which the sound is not output, sets the volume of the sound based on the noise level, and detects the sound in the period during which the sound is output; and a volume control unit that does not set the volume of the voice based on the noise level in the case of the noise level.
  • the invention according to claim 5 is an information processing method for an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section, wherein the noise a first step in which the detection unit detects a noise level of sound in the vehicle; a second step in which the audio detection unit detects whether or not audio is being output to the user; and the volume control.
  • the sound detection unit sets the volume of the sound based on the noise level.
  • the invention according to claim 6 is for causing a computer to execute an information processing method for an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section.
  • the noise detection unit detects a noise level based on the collected sound inside the vehicle; and whether or not the voice detection unit outputs voice to the user.
  • a second step of detecting whether or not the volume control unit receives a detection result indicating that the sound is not output to the user from the sound detection unit, based on the noise level and sets the volume of the sound based on the noise level when the detection result indicating that the sound is being output to the user is received from the sound detection unit.
  • the invention according to claim 7 is for causing a computer to execute an information processing method for an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section.
  • a computer-readable non-transitory recording medium recording the program of, wherein the noise detection unit detects a noise level based on the collected sound inside the vehicle; a second step of detecting whether or not a detection unit is outputting a sound to a user; When the detection result is received, the volume of the voice is set based on the noise level, and the detection result indicating that the voice is being output to the user from the voice detection unit is received. and a third step of not setting the sound volume based on the noise level.
  • FIG. 1 is a diagram illustrating the configuration of an information processing apparatus according to a first embodiment
  • FIG. 4 is a diagram showing a timing chart of the volume control section of the information processing apparatus according to the first embodiment
  • FIG. 4 is a diagram illustrating a processing flow of a volume control unit of the information processing apparatus according to the first embodiment
  • FIG. 5 is a diagram showing a method for determining the volume by the volume control unit of the information processing apparatus according to the first embodiment
  • FIG. 10 is a diagram illustrating the configuration of an information processing apparatus according to a second embodiment
  • FIG. 10 is a diagram showing a timing chart of the volume control unit of the information processing apparatus according to the second embodiment
  • FIG. 10 is a diagram illustrating a processing flow of a volume control unit of the information processing apparatus according to the second embodiment
  • the information processing apparatus includes a noise detection unit that detects the noise level of sound inside the vehicle, a voice detection unit that detects whether or not a voice is being output to the user, and a user signal from the voice detection unit.
  • a detection result indicating that no sound is being output to the user
  • the sound volume is set based on the noise level
  • the sound detection unit detects that sound is being output to the user.
  • a volume control that does not set the volume of the audio based on the noise level when the results are being received.
  • the noise detector detects the magnitude of noise (noise level) in the vehicle.
  • the voice detection unit detects whether voice is currently being output to the user.
  • the voice output to the user includes at least one of the voice guidance sound for guiding the route to the destination set by the user and the voice guidance sound of recommendation information for the user.
  • the volume control unit sets the volume of the sound based on the noise level detected by the noise detection unit during a period in which the sound detection unit detects that no sound is being output. On the other hand, during a period in which the sound detection section detects that sound is being output, the sound volume is not set based on the noise level detected by the noise detection section.
  • the noise detection unit detects the noise level based on the sound including the voice, so the detected noise level may increase. be.
  • the volume control unit does not set the sound volume based on the noise level detected by the noise detection unit during a period when the sound detection unit detects that the sound is being output. That is, the volume control unit does not change the audio volume setting while the audio is being output. As a result, it is possible to eliminate the change in volume that occurs during output of the sound, so that the user can reliably hear the sound without any sense of incongruity.
  • the volume control unit controls the volume of the sound based on the noise level during a period when the sound detection unit detects that no sound is being output. That is, the volume control unit sets the volume of the voice based on the noise level that does not include the voice such as voice guidance output to the user. As a result, the sound is output at an appropriate volume that matches the noise level inside the vehicle, so that the user can reliably hear the sound without any sense of incongruity.
  • the information processing apparatus includes a noise detection unit that detects the noise level of sound inside the vehicle, a voice detection unit that detects whether voice is being output to the user, and a voice output unit. If the noise level is detected during the period when the sound is not output, set the sound volume based on the noise level. and a volume control unit that does not set the volume of sound.
  • the noise detector detects the magnitude of noise (noise level) in the vehicle.
  • the voice detection unit detects whether voice is currently being output to the user.
  • the voice output to the user includes at least one of the voice guidance sound for guiding the route to the destination set by the user and the voice guidance sound of recommendation information for the user.
  • the volume control unit adjusts the noise level to the level detected by the noise detection unit. set the audio volume based on On the other hand, when the noise level detected by the noise detection unit is detected during the period when the sound detection unit detects that the sound is being output, the noise level detected by the noise detection unit is Do not set the audio volume.
  • the noise detection unit detects the noise level by collecting the sound including the voice, which may increase the noise level. be.
  • the volume control unit detects the noise detected by the noise detection unit. Do not set audio volume based on level. As a result, it is possible to eliminate the change in volume during the output of the voice output to the user, so that the user can reliably hear the voice without any sense of incongruity. Further, when the detected noise level is detected by the sound detection unit during a period during which the sound detection unit detects that no sound is output, the volume control unit detects the sound level based on the noise level. control the volume of the That is, the volume control unit sets the volume of the voice based on the noise level that does not include the voice such as voice guidance output to the user. As a result, the sound is output at an appropriate volume that matches the noise level inside the vehicle, so that the user can reliably hear the sound without any sense of incongruity.
  • Example 1 An information processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.
  • FIG. 1 An information processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.
  • FIG. 1 An information processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.
  • FIG. 1 An information processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.
  • FIG. 1 An information processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.
  • the information processing apparatus 1 includes at least a sound pickup section 10 , a noise detection section 20 , a sound detection section 30 , a sound output section 40 and a volume control section 50 .
  • the sound pickup unit 10 is configured by, for example, a microphone, and transmits the picked-up sound to the noise detection unit 20 .
  • the sound pickup unit 10 picks up sound with a microphone installed in the vehicle and transmits the sound to the noise detection unit 20 .
  • the sounds picked up by the sound pickup unit 10 include user's speech, environmental sounds around the vehicle, engine sounds, wind noises, road noises, operating sounds of air conditioners, and sounds output from speakers. Guidance and the like can be exemplified. Note that the sound pickup unit 10 only needs to be able to pick up sounds generated inside and outside the exemplified vehicle. may
  • the noise detection section 20 detects the noise level of the sound picked up by the sound pickup section 10 .
  • the noise detection unit 20 for example, divides the sound received from the sound collection unit 10 for each predetermined time (for example, every one second), calculates the average value of the noise level for each divided sound, and calculates the average value of the noise level for each divided sound.
  • the value is transmitted to the volume control unit 50, which will be described later.
  • the noise detection unit 20 only needs to be able to detect the noise level inside the vehicle.
  • the noise detection unit 20 may calculate the maximum value of the noise level for each sound divided every predetermined time.
  • the voice detection unit 30 detects whether voice is being output to the user, and transmits the detection result to the volume control unit 50, which will be described later.
  • the sound output to the user includes the sound of voice guidance (preliminary route information for the next intersection, etc.) for guiding the route to the destination set by the user. , and at least one of the sound of voice guidance of recommendation information for the user.
  • an activation sound such as "pawn” or a warning sound, which is output at the start of voice guidance such as route guidance, can be exemplified as the system sound.
  • the voice such as the response of the voice assistant function is also exemplified as the system sound.
  • the voice such as the response of the voice assistant function is also exemplified as the system sound.
  • the above-described recommendation information information such as recommended sightseeing spots, shops, etc., in the vicinity of the vehicle's traveling position and the destination can be exemplified.
  • the voice detection unit 30 receives information as to whether or not the system sound is being output from the navigation control unit (not shown), and detects whether or not the system sound is currently being output.
  • the navigation control unit determines the content and output timing of voice guidance for guiding the route to the destination and voice guidance of recommendation information for the user, and outputs system sound signals such as voice guidance to the voice output unit 40 described later.
  • the sound detection unit 30 only needs to be able to detect whether or not the system sound is being output. Based on the result, it may be detected whether or not the system sound is currently being output.
  • the audio output unit 40 is composed of, for example, an amplifier and a speaker, and outputs system sounds to the user.
  • the audio output unit 40 outputs the system sound such as the audio guidance received from the navigation control unit described above, based on the volume setting received from the volume control unit 50 described later.
  • the volume control unit 50 sets the volume of the system sound based on the noise level when receiving the detection result indicating that the system sound is not output to the user from the sound detection unit 30, and sets the volume of the system sound based on the noise level. 30, when the detection result indicating that the system sound is being output to the user is received, the volume of the system sound is not set based on the noise level.
  • the volume control unit 50 detects noise levels (N1, N2, . ), and determines the volume setting (S1, S2, . . . ) of the system sound based on the value of the noise level.
  • the volume control unit 50 transmits the volume setting based on the noise level to the audio output unit 40 during the period in which the information indicating that the system sound is not currently output is received from the audio detection unit 30 . As shown in FIGS. 2(c) and 2(d), the volume control unit 50 causes the noise detection unit 20 to detect a Volume setting (for example, S1, S2, S3, S6, S7) based on the noise level obtained is transmitted to the audio output unit 40.
  • a Volume setting for example, S1, S2, S3, S6, S7
  • the volume control unit 50 during the period in which the system sound is currently being output from the sound detection unit 30 (the period during output in (d) of FIG. 2), the volume setting (S4, S5) based on the noise level is not transmitted to the audio output section 40. That is, the noise levels (N4, N5) detected while the system sound is being output may be high because the noise level is detected including the sound of the system sound.
  • the volume control unit 50 does not transmit the volume settings (S4, S5) based on the noise levels (N4, N5) acquired during this period to the audio output unit 40.
  • FIG. In the period in which the volume settings (S4, S5) are not transmitted to the audio output unit 40, the system sound is output according to the volume setting (S3) finally transmitted to the audio output unit 40 by the volume control unit 50.
  • the volume control unit 50 transmits the volume setting (S6) based on the noise level (N6) including the sound of the system sound to the audio output unit 40. Since the volume setting is sent while the system sound output is stopped, the volume does not change while the system sound is being output. Details of the processing of the volume control unit 50 will be described below.
  • the volume control unit 50 determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S100). If it is determined that the ACC power supply of the vehicle is not on ("NO" in step S100), the process returns to step S100 and shifts to the standby state. On the other hand, if it is determined that the ACC power supply of the vehicle is on ("YES" in step S100), the process proceeds to step S110.
  • the volume setting to be set in the audio output section 40 is initialized (step S110). Immediately after the information processing apparatus 1 is activated, the noise detection unit 20 has not yet finished detecting the noise level.
  • the volume setting described above is the volume setting selected by the user while listening to the system sound in a state of little noise (for example, the engine is on and the vehicle is stopped). Note that the volume setting set by the user is stored in a memory (not shown).
  • the volume control unit 50 acquires the noise level from the noise detection unit 20 (step S120), and shifts the process to step S130.
  • the volume control unit 50 determines whether or not the system sound is currently being output based on the information received from the sound detection unit 30 (step S130). If it is determined that the system sound is currently being output ("YES" in step S130), the process proceeds to step S150. That is, the volume control section 50 does not set the volume of the audio output section 40 when the system sound is currently being output. On the other hand, if it is determined that the system sound is not currently being output ("NO" in step S130), the process proceeds to step S140.
  • the volume control unit 50 determines that the system sound is not currently being output ("NO" in step S130)
  • the volume control unit 50 determines the volume setting of the system sound based on the noise level acquired from the noise detection unit 20. , and transmits the volume setting to the audio output unit 40 (step S140).
  • the volume control unit 50 determines the volume setting to be set in the audio output unit 40 based on the amount of volume correction associated with the noise level acquired from the noise detection unit 20 . Specifically, the volume control unit 50 corrects the volume set in step S110 (the volume of the system sound preset by the user) according to the volume correction amount associated with the noise level.
  • the volume control unit 50 transmits to the audio output unit 40 a volume setting in which the volume set in step S110 becomes +6 dB. do.
  • the noise level value obtained from the noise detection unit 20 is divided into four stages to determine the volume correction value. may be controlled.
  • the volume control unit 50 determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S150). If it is determined that the ACC power supply of the vehicle is on ("YES” in step S150), the process proceeds to step S120 to continue the process. On the other hand, if it is determined that the ACC power supply of the vehicle is not on (“NO” in step S150), the process is terminated.
  • the information processing apparatus 1 includes a noise detection unit 20 that detects the noise level of sound inside the vehicle, and an audio detection unit 30 that detects whether audio (system sound) is being output to the user. Then, when the detection result indicating that no sound (system sound) is output to the user is received from the sound detection unit 30, the volume of the sound (system sound) is set based on the noise level, and the sound A volume control unit that does not set the volume of the sound (system sound) based on the noise level when the detection result indicating that the sound (system sound) is being output to the user is received from the detection unit 30 50 and .
  • the noise detection unit 20 detects the noise level of the sound inside the vehicle picked up by the sound pickup unit 10 .
  • the sound detection unit 30 detects whether system sound is currently being output to the user.
  • the sound (system sound) output to the user is at least one of the sound of voice guidance for guiding the route to the destination set by the user and the sound of recommendation information for the user. is included.
  • the volume control unit 50 sets the volume of the system sound based on the noise level detected by the noise detection unit 20 during a period when the sound detection unit 30 detects that the system sound is not output.
  • the volume of the system sound is not set based on the noise level detected by the noise detection unit 20 .
  • the noise detection unit 20 detects the noise level based on the sound including the system sound, so the detected noise level increases. Sometimes. Therefore, the volume control unit 50 does not set the volume of the system sound based on the noise level detected by the noise detection unit 20 during the period when the sound detection unit 30 detects that the system sound is being output. . In other words, the volume control unit 50 does not change the volume setting of the system sound while the system sound is being output. As a result, it is possible to eliminate the change in volume that occurs during the output of the system sound, so that the user can reliably hear the system sound without any sense of incongruity.
  • the volume control unit 50 controls the volume of the system sound based on the noise level detected by the noise detection unit 20 during a period when the sound detection unit 30 detects that the system sound is not output. That is, the volume control unit 50 sets the volume of the system sound based on the noise level that does not include the system sound such as the voice guidance output to the user. As a result, the system sound is output at an appropriate volume according to the noise level inside the vehicle, so that the user can reliably hear the system sound without any sense of discomfort.
  • the volume control unit 50 of the information processing apparatus 1 performs volume correction control in accordance with the noise level inside the vehicle, the system sound is output at a volume close to the volume preset by the user. . As a result, even in a noisy environment, the user can reliably hear the system sound without hearing discomfort.
  • the volume control unit 50 of the information processing apparatus 1 transmits the volume setting based on the noise level to the audio output unit 40 even when the system sound is not output.
  • the volume control unit 50 cannot grasp the output timing of system sounds such as voice guidance, the volume setting based on the noise level is always transmitted to the voice output unit 40. Therefore, whenever the system sound is output, the user can certainly hear the system sound without any sense of discomfort.
  • the volume control unit 50 of the information processing apparatus 1 determines the volume setting of the system sound at the timing of receiving the noise level from the noise detection unit 20, and transmits the volume setting to the audio output unit 40. do.
  • the volume setting is transmitted to the audio output unit 40 at the timing when the system sound is output, it is necessary to temporarily store the volume setting value determined based on the noise level in the memory.
  • the volume control unit 50 does not need to set the volume in accordance with the timing at which the system sound is output, the memory for storing the volume setting can be deleted.
  • Example 2 An information processing apparatus 1A according to the present embodiment will be described with reference to FIGS. 5 to 7.
  • FIG. since the components denoted by the same reference numerals as those in the first embodiment have the same functions, detailed description thereof will be omitted.
  • the configuration of the information processing apparatus 1A according to this embodiment will be described with reference to FIG.
  • the information processing apparatus 1A includes at least a sound pickup section 10, a noise detection section 20A, a sound detection section 30A, a sound output section 40, and a volume control section 50A.
  • the noise detection section 20A detects the noise level of the sound picked up by the sound pickup section 10 .
  • the noise detection unit 20A for example, divides the sound received from the sound pickup unit 10 into predetermined time intervals (eg, every second), calculates the average value of the noise level for each divided sound, and calculates the average value of the noise level. The value is transmitted to the volume control section 50A, which will be described later.
  • the noise detection unit 20A only needs to be able to detect the noise level inside the vehicle.
  • the noise detection unit 20A receives information as to whether or not the system sound is being output from the audio detection unit 30A, which will be described later, and determines whether or not the system sound is being output when the noise level is detected. do. The determination result as to whether or not the system sound was being output when the noise level was detected is also sent when the value of the detected noise level is sent to the volume control section 50A.
  • the sound detection unit 30A detects whether or not system sound is currently being output, and transmits the detection result to the noise detection unit 20A.
  • the volume control section 50A will be described with reference to FIG.
  • the volume control unit 50A receives the noise level detected during a period in which the system sound is not output from the noise detection unit 20A
  • the volume control unit 50A sets the volume of the system sound based on the noise level, and outputs the system sound.
  • the noise level detected during the period is received from the noise detection unit 20A
  • the volume setting of the system sound based on the noise level is not executed.
  • the volume control unit 50A adjusts the noise levels (N1, N2, . ), and determines the volume setting (S1, S2, . . . ) of the system sound based on the value of the noise level.
  • the volume control unit 50A instructs the audio output unit 40 to set the volume of the system sound based on the noise level. Send. As shown in FIGS. 6A to 6D, the volume control unit 50A obtains from the noise detection unit 20A the noise level detected during the period in which the system sound is not output (for example, N1, N2, N3, N7), the volume setting (for example, S1, S2, S3, S7) based on the noise level is transmitted to the audio output unit 40.
  • the noise level detected during the period in which the system sound is not output for example, N1, N2, N3, N7
  • the volume setting for example, S1, S2, S3, S7 based on the noise level is transmitted to the audio output unit 40.
  • the volume control section 50A when the noise level detected while the system sound is being output is acquired from the noise detection section 20A, the volume control section 50A does not set the volume based on the noise level. As shown in FIGS. 6A to 6D, the volume control unit 50A acquires the noise level detected during the period in which the system sound is being output from the noise detection unit 20A (N4 to N6). does not transmit the volume setting (S4 to S6) based on the noise level to the audio output unit 40. In other words, the noise level (N4 to N6) during the period in which the system sound is being output is detected including the sound of the system sound, so the noise level may be high.
  • the volume control unit 50A does not transmit to the audio output unit 40 the volume settings (S4 to S6) based on the noise levels (N4 to N6) detected while the system sound is being output. During the period in which the volume settings (S4 to S6) are not transmitted to the audio output unit 40, the system sound is output according to the volume setting (S3) last transmitted from the volume control unit 50A to the audio output unit. Details of the processing of the volume control unit 50A will be described below.
  • the volume control unit 50A determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S100). If it is determined that the ACC power supply of the vehicle is not on ("NO" in step S100), the process returns to step S100 and shifts to the standby state. On the other hand, if it is determined that the ACC power supply of the vehicle is on ("YES" in step S100), the process proceeds to step S110.
  • the volume setting to be set in the audio output section 40 is initialized (step S110). Immediately after the information processing apparatus 1A is activated, the noise detection section 20A does not detect the noise level, so the volume control section 50A transmits the volume setting selected by the user to the audio output section 40.
  • FIG. The volume setting described above is the volume setting selected by the user while listening to the system sound in a low noise state (for example, the engine is on and the vehicle is stopped). Note that the volume setting set by the user is stored in a memory (not shown).
  • the volume control unit 50A acquires the noise level and determination information as to whether or not the noise level was detected during output of the system sound from the noise detection unit 20A (step S200), and the process proceeds to step S210. Let
  • Volume control unit 50A determines whether or not the noise level acquired in step S200 is the noise level detected when the system sound is being output (step S210). If it is determined that the noise level is the one detected when the system sound is being output ("YES" in step S210), the process proceeds to step S150. That is, the volume control unit 50A does not set the volume to the audio output unit 40 when the noise level acquired from the noise detection unit 20A is the noise level detected when the system sound is being output. On the other hand, if it is determined that the noise level is detected when the system sound is not output (“NO" in step S210), the process proceeds to step S140.
  • step S210 If it is determined that the noise level is detected when the system sound is not output ("NO" in step S210), the system sound volume setting is performed based on the noise level obtained from the noise detection unit 20A. Then, the volume setting is transmitted to the audio output unit 40 (step S140).
  • the method by which the volume control unit 50A determines the volume of the sound based on the noise level acquired from the noise detection unit 20A is the same as in the first embodiment described above.
  • the volume control unit 50A determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S150). If it is determined that the ACC power supply of the vehicle is on ("YES” in step S150), the process proceeds to step S120 to continue the process. On the other hand, if it is determined that the ACC power supply of the vehicle is not on (“NO” in step S150), the process is terminated.
  • the information processing apparatus 1A includes a noise detection unit 20A for detecting the noise level of sound inside the vehicle, and a sound detection unit 30A for detecting whether or not sound (system sound) is being output to the user. If the noise level is detected during a period when no sound (system sound) is output, the volume of the sound (system sound) is set based on the noise level, and the sound (system sound) is output. and a volume control unit 50A that does not set the volume of the sound (system sound) based on the noise level in the case of the noise level detected during the period.
  • the sound (system sound) output to the user is at least one of the sound of voice guidance for guiding the route to the destination set by the user and the sound of recommendation information for the user. is included.
  • the noise detection unit 20A detects the noise level inside the vehicle based on the sound picked up by the sound pickup unit 10 . Further, the noise detection unit 20A determines whether or not the system sound is being output during the detection of the noise level, based on the information received from the sound detection unit 30A and indicating whether or not the sound is being output. .
  • the audio detection unit 30A detects whether system sounds are currently being output.
  • the volume control unit 50A when receiving from the noise detection unit 20A the noise level detected while the system sound is not output, transmits the volume setting based on the noise level to the audio output unit 40. When the volume control unit 50A receives the noise level detected while the system sound is being output from the noise detection unit 20A, the volume control unit 50A does not set the volume based on the noise level.
  • the volume control unit 50A Since the noise detection unit 20A detects the noise level based on the sound including the system sound when the system sound is being output, the detected noise level may increase. Therefore, the volume control unit 50A does not change the volume setting of the system sound when receiving the noise level detected while the system sound is being output from the noise detection unit 20A. As a result, it is possible to eliminate the change in volume that occurs during the output of the system sound, so that the user can reliably hear the sound without any sense of incongruity.
  • the volume control unit 50A controls the volume of the system sound based on the value of the noise level. As a result, the system sound is output at an appropriate volume that matches the noise level that does not include the effects of the voice of the system sound.
  • the volume control unit 50A of the information processing apparatus 1A performs volume correction control in accordance with the noise level inside the vehicle, the system sound is output at a volume close to the volume preset by the user. . As a result, even in a noisy environment, the user can reliably hear the system sound without hearing discomfort.
  • the volume control unit 50 of the information processing device 1 described above transmits the volume setting (S6) based on the noise level (N6) including the system sound to the audio output unit 40.
  • the volume control unit 50A of the information processing device 1A according to the present embodiment transmits the volume setting (S6) based on the noise level (N6) including the system sound to the audio output unit 40. do not.
  • the volume setting (S6) when the output of the system sound is started while the volume setting (S6) is set in the audio output unit 40, the volume change that occurs during the output of the system sound does not occur, but the system The sound volume can be loud.
  • the volume setting (S6) based on the noise level (N6) including the system sound is not transmitted to the audio output section 40, the volume setting based on the noise level not including the system sound is always performed. It can be carried out.
  • the volume control unit 50A of the information processing apparatus 1A transmits the volume setting based on the noise level to the audio output unit 40 even when the system sound is not output.
  • the volume control unit 50A cannot grasp the output timing of system sounds such as voice guidance, the volume setting based on the noise level is always transmitted to the voice output unit 40. Therefore, whenever the system sound is output, the user can certainly hear the system sound without any sense of discomfort.
  • the volume control unit 50A of the information processing apparatus 1A determines the volume setting of the system sound at the timing of receiving the noise level from the noise detection unit 20A, and transmits the volume setting to the audio output unit 40. do.
  • the volume setting is transmitted to the audio output unit 40 at the timing when the system sound is output, it is necessary to temporarily store the volume setting value determined based on the noise level in the memory.
  • the volume control unit 50A does not need to set the volume in accordance with the timing at which the system sound is output, the memory for storing the volume setting can be deleted.
  • the detection result of the voice detection section 30A is transmitted to the noise detection section 20A, but it may be transmitted to the volume control section 50A. That is, in the information processing apparatus 1A, the information as to whether or not the system sound was being output during detection of the noise level was received from the noise detection section 20A, and the volume control section 50A controlled the volume setting of the system sound. However, the volume control section 50A may receive the detection result from the sound detection section 30A and determine whether or not the system sound was being output during the detection of the noise level.
  • the noise level received from the noise detection unit 20A is influenced by the system sound. determine that it contains In addition, immediately after the output of the system sound is completed and the volume control unit 50A receives information indicating that the system sound is not being output from the sound detection unit 30A, the noise level received from the noise detection unit 20A is Judge that the influence of the system sound is included. Volume control unit 50A determines whether or not the system sound was being output during detection of the noise level received from noise detection unit 20A, based on the determination result described above.
  • the volume control unit 50A determines that the noise level received from the noise detection unit 20A is detected when the system sound is not being output, the volume control unit 50A transmits the volume setting based on the noise level to the audio output unit 40. do. Further, when it is determined that the noise level received from the noise detection section 20A is detected while the system sound is being output, the volume setting based on the noise level is not transmitted to the audio output section 40. - ⁇ As a result, the volume control unit 50A can control the volume setting so that the volume does not change during the output of the system sound, so that the user can surely hear the voice without any sense of incongruity.
  • the sound pickup unit 10 and the noise detection unit 20 can be configured using a general-purpose sound level meter. can.
  • information processing device 1A information processing device 10; sound pickup unit 20; noise detection unit 20A; noise detection unit 30;

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Provided is an information processing device that performs volume control in which a volume change does not occur during output of a voice of for voice guidance or the like, such that a user can reliably hear said voice.　The information processing device comprises: a noise detection unit 20 that detects the noise level of sound in a vehicle; a voice detection unit 30 that detects whether or not a voice is being output to a user; and a volume control unit 50 that sets the volume of the voice in accordance with the noise level when receiving from the voice detection unit 30 a detection result which indicates that voice is not being output to the user, and that does not change the volume of the voice when receiving from the voice detection unit 30 a detection result which indicates that a voice is being output to the user.

Description

情報処理装置、情報処理方法、プログラムおよび記録媒体Information processing device, information processing method, program and recording medium
　本発明は、情報処理装置、情報処理方法、プログラムおよび記録媒体に関する。 The present invention relates to an information processing device, an information processing method, a program, and a recording medium.
　一般に、ナビゲーション装置では、ユーザが設定した目的地までの経路を誘導するために、次に曲がるべき交差点に対する事前の経路情報や走行予定の道路の渋滞情報等を音声によって案内が行われる。
　この種の機器では、予め決められた数段階の音量の中から、ユーザが選択した音量で音声案内が行われるが、走行中のロードノイズやエンジン音等により騒音が大きくなるため、ユーザが音声案内を聞き取れないことや、案内を誤認識すること等が発生する。
　ここで、走行中の騒音下においても音声案内を聞き取れるように、車両内外の騒音レベル等に基づいて、音声案内の音量を制御する技術が開示されている（例えば、特許文献１参照）。 In general, a navigation device provides advance route information for an intersection to be turned next, traffic congestion information, etc. on a road to be traveled by voice in order to guide the user on a route to a destination set by the user.
With this type of device, voice guidance is provided at a volume selected by the user from among several levels of volume predetermined. It may occur that the guidance cannot be heard or that the guidance is misrecognized.
Here, there is disclosed a technique for controlling the volume of voice guidance based on the noise level inside and outside the vehicle so that the voice guidance can be heard even under noisy conditions during driving (see, for example, Patent Document 1).
特開２００２－９１４８８号公報JP-A-2002-91488
　上述した先行技術では、車両内に配置されたマイクロフォンを用いて、車両内外で発生する騒音の大きさを検出し、その騒音の大きさに基づいて音声案内の音量を制御している。
　しかしながら、上述した先行技術では、車両内に配置されたマイクロフォンが、ナビゲーション装置の音声案内の音声を騒音として収音してしまうために、音声案内の音量が案内途中で変化してしまい、ユーザが音声案内を聞きとりにくくなるという課題が一例として挙げられる。 In the prior art described above, a microphone placed inside the vehicle is used to detect the magnitude of noise generated inside and outside the vehicle, and the volume of voice guidance is controlled based on the magnitude of the noise.
However, in the prior art described above, since the microphone placed in the vehicle picks up the voice of the voice guidance of the navigation device as noise, the volume of the voice guidance changes during the guidance, causing the user to One example is the problem of difficulty in hearing voice guidance.
　本発明は、上述の一例として挙げられた課題に鑑みてなされたものであり、ユーザが音声案内等の音声を確実に聞き取ることができるように、当該音声の出力途中における音量変化が発生しない音量制御を行う情報処理装置、情報処理方法、プログラムおよび記録媒体を提供することを主な目的とする。 SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. A main object of the present invention is to provide an information processing device, an information processing method, a program, and a recording medium that perform control.
　上記課題を解決するために、請求項１に記載の発明は、車両内の音の騒音レベルを検出する騒音検出部と、ユーザに対して音声を出力しているか否かを検出する音声検出部と、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない音量制御部と、を備える情報処理装置である。 In order to solve the above problems, the invention according to claim 1 provides a noise detection unit for detecting the noise level of sound inside the vehicle, and an audio detection unit for detecting whether or not audio is being output to the user. and, when a detection result indicating that the sound is not output to the user is received from the sound detection unit, the volume of the sound is set based on the noise level, and from the sound detection unit and a volume control unit that does not set the volume of the sound based on the noise level when receiving a detection result indicating that the sound is being output to the user. be.
　また、上記課題を解決するために、請求項２に記載の発明は、車両内の音の騒音レベルを検出する騒音検出部と、ユーザに対して音声を出力しているか否かを検出する音声検出部と、前記音声が出力されていない期間に検出された前記騒音レベルの場合には、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声が出力されている期間に検出された前記騒音レベルの場合には、前記騒音レベルに基づいた前記音声の音量の設定を行わない音量制御部と、を備えることを特徴とする情報処理装置である。 Further, in order to solve the above-mentioned problems, the invention according to claim 2 includes a noise detection unit for detecting the noise level of sound inside the vehicle, and a sound for detecting whether or not a sound is being output to the user. a detecting unit, in the case of the noise level detected during the period in which the sound is not output, sets the volume of the sound based on the noise level, and detects the sound in the period during which the sound is output; and a volume control unit that does not set the volume of the voice based on the noise level in the case of the noise level.
　また、上記課題を解決するために、請求項５に記載の発明は、騒音検出部と、音声検出部と、音量制御部と、を備えた情報処理装置の情報処理方法であって、前記騒音検出部が、車両内の音の騒音レベルを検出する第１の工程と、前記音声検出部が、ユーザに対して音声を出力しているか否かを検出する第２の工程と、前記音量制御部が、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない第３の工程と、を備える情報処理方法である。 Further, in order to solve the above problems, the invention according to claim 5 is an information processing method for an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section, wherein the noise a first step in which the detection unit detects a noise level of sound in the vehicle; a second step in which the audio detection unit detects whether or not audio is being output to the user; and the volume control. When the unit receives a detection result indicating that the sound is not output to the user from the sound detection unit, the sound detection unit sets the volume of the sound based on the noise level. and a third step of not setting the volume of the sound based on the noise level when receiving a detection result indicating that the sound is being output to the user from The method.
　また、上記課題を解決するために、請求項６に記載の発明は、騒音検出部と、音声検出部と、音量制御部と、を備えた情報処理装置の情報処理方法をコンピュータに実行させるためのプログラムであって、前記騒音検出部が、収音した車両内の音に基づいて騒音レベルを検出する第１の工程と、前記音声検出部が、ユーザに対して音声を出力しているか否かを検出する第２の工程と、前記音量制御部が、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない第３の工程と、を備えるプログラムである。 Further, in order to solve the above problems, the invention according to claim 6 is for causing a computer to execute an information processing method for an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section. wherein the noise detection unit detects a noise level based on the collected sound inside the vehicle; and whether or not the voice detection unit outputs voice to the user. a second step of detecting whether or not the volume control unit receives a detection result indicating that the sound is not output to the user from the sound detection unit, based on the noise level and sets the volume of the sound based on the noise level when the detection result indicating that the sound is being output to the user is received from the sound detection unit. and a third step of not performing
　また、上記課題を解決するために、請求項７に記載の発明は、騒音検出部と、音声検出部と、音量制御部と、を備えた情報処理装置の情報処理方法をコンピュータに実行させるためのプログラムを記録したコンピュータが読み取り可能な非一過性の記録媒体であって、前記騒音検出部が、収音した車両内の音に基づいて騒音レベルを検出する第１の工程と、前記音声検出部が、ユーザに対して音声を出力しているか否かを検出する第２の工程と、前記音量制御部が、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない第３の工程と、を備える記録媒体である。 Further, in order to solve the above problems, the invention according to claim 7 is for causing a computer to execute an information processing method for an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section. a computer-readable non-transitory recording medium recording the program of, wherein the noise detection unit detects a noise level based on the collected sound inside the vehicle; a second step of detecting whether or not a detection unit is outputting a sound to a user; When the detection result is received, the volume of the voice is set based on the noise level, and the detection result indicating that the voice is being output to the user from the voice detection unit is received. and a third step of not setting the sound volume based on the noise level.
実施例１に係る情報処理装置の構成を示す図である。1 is a diagram illustrating the configuration of an information processing apparatus according to a first embodiment; FIG. 実施例１に係る情報処理装置の音量制御部のタイミングチャートを示す図である。4 is a diagram showing a timing chart of the volume control section of the information processing apparatus according to the first embodiment; FIG. 実施例１に係る情報処理装置の音量制御部の処理フローを示す図である。4 is a diagram illustrating a processing flow of a volume control unit of the information processing apparatus according to the first embodiment; FIG. 実施例１に係る情報処理装置の音量制御部が音量を決定する方法を示す図である。FIG. 5 is a diagram showing a method for determining the volume by the volume control unit of the information processing apparatus according to the first embodiment; 実施例２に係る情報処理装置の構成を示す図である。FIG. 10 is a diagram illustrating the configuration of an information processing apparatus according to a second embodiment; 実施例２に係る情報処理装置の音量制御部のタイミングチャートを示す図である。FIG. 10 is a diagram showing a timing chart of the volume control unit of the information processing apparatus according to the second embodiment; 実施例２に係る情報処理装置の音量制御部の処理フローを示す図である。FIG. 10 is a diagram illustrating a processing flow of a volume control unit of the information processing apparatus according to the second embodiment;
　本実施形態に係る情報処理装置は、車両内の音の騒音レベルを検出する騒音検出部と、ユーザに対して音声を出力しているか否かを検出する音声検出部と、音声検出部からユーザに対して音声を出力していない旨の検出結果を受信しているときは、騒音レベルに基づいて音声の音量を設定し、音声検出部からユーザに対して音声を出力している旨の検出結果を受信しているときは、騒音レベルに基づいた音声の音量の設定を行わない音量制御部と、を備えている。
　騒音検出部は、車両内の騒音の大きさ（騒音レベル）を検出する。
　音声検出部は、ユーザに対して音声を現在出力しているか否かを検出する。
　ここで、ユーザに対して出力する音声には、ユーザが設定した目的地までの経路を誘導するための音声案内の音、および、ユーザに対するレコメンド情報の音声案内の音の少なくとも一方が含まれる。
　音量制御部は、音声検出部において、音声が出力されていないと検出されている期間では、騒音検出部において検出された騒音レベルに基づいて、音声の音量を設定する。
　一方で、音声検出部において、音声が出力されていると検出されている期間では、騒音検出部において検出された騒音レベルに基づいた音声の音量の設定を行わない。
　騒音検出部は、ユーザに対して音声案内等の音声が出力されているときには、その音声を含んだ音に基づいて、騒音レベルを検出するために、検出した騒音レベルが大きくなってしまうことがある。
　そのため、音量制御部は、音声検出部において、音声が出力されていると検出された期間では、騒音検出部において検出された騒音レベルに基づいた、音声の音量の設定を実行しない。
　つまり、音量制御部は、音声が出力されている期間では、音声の音量設定の変更を行わない。
　これにより、音声の出力途中に発生する音量変化をなくすことができるため、ユーザは聴感上違和感なく、音声を確実に聞き取ることができる。
　また、音量制御部は、音声検出部において、音声が出力されていないと検出された期間は、騒音レベルに基づいて音声の音量を制御する。
　すなわち、音量制御部は、ユーザに対して出力した音声案内等の音声を含まない騒音レベルに基づいて、音声の音量設定を行う。
　これにより、車両内の騒音レベルに合わせた適切な音量で、音声が出力されるため、ユーザは聴感上違和感なく、音声を確実に聞き取ることができる。 The information processing apparatus according to the present embodiment includes a noise detection unit that detects the noise level of sound inside the vehicle, a voice detection unit that detects whether or not a voice is being output to the user, and a user signal from the voice detection unit. When receiving a detection result indicating that no sound is being output to the user, the sound volume is set based on the noise level, and the sound detection unit detects that sound is being output to the user. a volume control that does not set the volume of the audio based on the noise level when the results are being received.
The noise detector detects the magnitude of noise (noise level) in the vehicle.
The voice detection unit detects whether voice is currently being output to the user.
Here, the voice output to the user includes at least one of the voice guidance sound for guiding the route to the destination set by the user and the voice guidance sound of recommendation information for the user.
The volume control unit sets the volume of the sound based on the noise level detected by the noise detection unit during a period in which the sound detection unit detects that no sound is being output.
On the other hand, during a period in which the sound detection section detects that sound is being output, the sound volume is not set based on the noise level detected by the noise detection section.
When a voice such as voice guidance is output to the user, the noise detection unit detects the noise level based on the sound including the voice, so the detected noise level may increase. be.
Therefore, the volume control unit does not set the sound volume based on the noise level detected by the noise detection unit during a period when the sound detection unit detects that the sound is being output.
That is, the volume control unit does not change the audio volume setting while the audio is being output.
As a result, it is possible to eliminate the change in volume that occurs during output of the sound, so that the user can reliably hear the sound without any sense of incongruity.
Further, the volume control unit controls the volume of the sound based on the noise level during a period when the sound detection unit detects that no sound is being output.
That is, the volume control unit sets the volume of the voice based on the noise level that does not include the voice such as voice guidance output to the user.
As a result, the sound is output at an appropriate volume that matches the noise level inside the vehicle, so that the user can reliably hear the sound without any sense of incongruity.
　また、本実施形態に係る情報処理装置は、車両内の音の騒音レベルを検出する騒音検出部と、ユーザに対して音声を出力しているか否かを検出する音声検出部と、音声が出力されていない期間に検出された騒音レベルの場合には、騒音レベルに基づいて音声の音量を設定し、音声が出力されている期間に検出された騒音レベルの場合には、騒音レベルに基づいた音声の音量の設定を行わない音量制御部と、を備えている。
　騒音検出部は、車両内の騒音の大きさ（騒音レベル）を検出する。
　音声検出部は、ユーザに対して音声を現在出力しているか否かを検出する。
　ここで、ユーザに対して出力する音声には、ユーザが設定した目的地までの経路を誘導するための音声案内の音、および、ユーザに対するレコメンド情報の音声案内の音の少なくとも一方が含まれる。
　音量制御部は、騒音検出部において検出された騒音レベルが、音声検出部において音声が出力されていないと検出されている期間に検出された場合には、騒音検出部において検出された騒音レベルに基づいて、音声の音量を設定する。
　一方で、騒音検出部において検出された騒音レベルが、音声検出部において音声が出力されていると検出されている期間に検出された場合には、騒音検出部において検出された騒音レベルに基づいた音声の音量の設定を行わない。
　騒音検出部は、ユーザに対して音声案内等の音声が出力されているときには、その音声を含めた音を収音して、騒音レベルを検出するために、騒音レベルが大きくなってしまうことがある。
　そのため、音量制御部は、騒音検出部において検出された騒音レベルが、音声検出部において音声が出力されていると検出されている期間に検出された場合には、騒音検出部において検出された騒音レベルに基づいた、音声の音量の設定を実行しない。
　これにより、ユーザに対して出力した音声により発生する、出力途中の音量変化をなくすことができるため、ユーザは聴感上違和感なく、音声を確実に聞き取ることができる。
　また、音量制御部は、音声検出部において、検出された騒音レベルが、音声検出部において音声が出力されていないと検出されている期間に検出された場合には、騒音レベルに基づいて、音声の音量を制御する。
　すなわち、音量制御部は、ユーザに対して出力した音声案内等の音声を含まない騒音レベルに基づいて、音声の音量設定を行う。
　これにより、車両内の騒音レベルに合わせた適切な音量で、音声が出力されるため、ユーザは聴感上違和感なく、音声を確実に聞き取ることができる。 Further, the information processing apparatus according to the present embodiment includes a noise detection unit that detects the noise level of sound inside the vehicle, a voice detection unit that detects whether voice is being output to the user, and a voice output unit. If the noise level is detected during the period when the sound is not output, set the sound volume based on the noise level. and a volume control unit that does not set the volume of sound.
The noise detector detects the magnitude of noise (noise level) in the vehicle.
The voice detection unit detects whether voice is currently being output to the user.
Here, the voice output to the user includes at least one of the voice guidance sound for guiding the route to the destination set by the user and the voice guidance sound of recommendation information for the user.
If the noise level detected by the noise detection unit is detected during a period in which the sound detection unit detects that no sound is being output, the volume control unit adjusts the noise level to the level detected by the noise detection unit. set the audio volume based on
On the other hand, when the noise level detected by the noise detection unit is detected during the period when the sound detection unit detects that the sound is being output, the noise level detected by the noise detection unit is Do not set the audio volume.
When a voice such as voice guidance is output to the user, the noise detection unit detects the noise level by collecting the sound including the voice, which may increase the noise level. be.
Therefore, when the noise level detected by the noise detection unit is detected during the period when the sound detection unit detects that the sound is being output, the volume control unit detects the noise detected by the noise detection unit. Do not set audio volume based on level.
As a result, it is possible to eliminate the change in volume during the output of the voice output to the user, so that the user can reliably hear the voice without any sense of incongruity.
Further, when the detected noise level is detected by the sound detection unit during a period during which the sound detection unit detects that no sound is output, the volume control unit detects the sound level based on the noise level. control the volume of the
That is, the volume control unit sets the volume of the voice based on the noise level that does not include the voice such as voice guidance output to the user.
As a result, the sound is output at an appropriate volume that matches the noise level inside the vehicle, so that the user can reliably hear the sound without any sense of incongruity.
＜実施例１＞
　図１から図４を用いて、本実施例に係る情報処理装置１について説明する。 <Example 1>
An information processing apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 to 4. FIG.
＜情報処理装置１の構成＞
　図１を用いて、本実施例に係る情報処理装置１の構成について説明する。
　情報処理装置１は、収音部１０と、騒音検出部２０と、音声検出部３０と、音声出力部４０と、音量制御部５０と、を少なくとも含んで構成されている。 <Configuration of information processing device 1>
A configuration of an information processing apparatus 1 according to the present embodiment will be described with reference to FIG.
The information processing apparatus 1 includes at least a sound pickup section 10 , a noise detection section 20 , a sound detection section 30 , a sound output section 40 and a volume control section 50 .
　収音部１０は、例えば、マイクロフォンで構成され、収音した音声を騒音検出部２０に送信する。
　具体的には、収音部１０は、車両内に設置されたマイクロフォンにより音を収音し、当該音を騒音検出部２０に送信する。
　ここで、収音部１０において収音される音としては、ユーザの発話音声、車両周辺の環境音、エンジン音、風切り音、ロードノイズ、エアコンディショナの作動音、スピーカから出力されている音声案内等を、例示することができる。
　なお、収音部１０は、例示した車両内外で発生した音を収音できればよいため、例えば、車両内に設置されている、ハンズフリー通話用マイクロフォンや音声指示入力用マイクロフォン等を用いて構成してもよい。 The sound pickup unit 10 is configured by, for example, a microphone, and transmits the picked-up sound to the noise detection unit 20 .
Specifically, the sound pickup unit 10 picks up sound with a microphone installed in the vehicle and transmits the sound to the noise detection unit 20 .
Here, the sounds picked up by the sound pickup unit 10 include user's speech, environmental sounds around the vehicle, engine sounds, wind noises, road noises, operating sounds of air conditioners, and sounds output from speakers. Guidance and the like can be exemplified.
Note that the sound pickup unit 10 only needs to be able to pick up sounds generated inside and outside the exemplified vehicle. may
　騒音検出部２０は、収音部１０において収音した音の騒音レベルを検出する。
　騒音検出部２０は、例えば、収音部１０から受信した音を、所定時間毎（例えば、１秒間毎）に分割し、その分割した音毎に騒音レベルの平均値を算出し、その算出した値を、後述する音量制御部５０に送信する。
　ここで、騒音検出部２０は、車両内の騒音レベルを検出できればよく、例えば、所定時間毎に分割した音毎の騒音レベルの最大値を算出するようにしてもよい。 The noise detection section 20 detects the noise level of the sound picked up by the sound pickup section 10 .
The noise detection unit 20, for example, divides the sound received from the sound collection unit 10 for each predetermined time (for example, every one second), calculates the average value of the noise level for each divided sound, and calculates the average value of the noise level for each divided sound. The value is transmitted to the volume control unit 50, which will be described later.
Here, the noise detection unit 20 only needs to be able to detect the noise level inside the vehicle. For example, the noise detection unit 20 may calculate the maximum value of the noise level for each sound divided every predetermined time.
　音声検出部３０は、ユーザに対して音声を出力しているか否かの検出を行い、その検出結果を後述する音量制御部５０に送信する。
　ユーザに対して出力する音声（以下、システム音と呼ぶ。）には、ユーザが設定した目的地までの経路を誘導するための音声案内（次に曲がるべき交差点に対する事前の経路情報等）の音、および、ユーザに対するレコメンド情報の音声案内の音の少なくとも一方が含まれる。
　ここで、経路誘導等の音声案内の開始時に出力される、例えば、「ポーン」という起動音や注意音等も、システム音として例示することができる。
　また、ユーザの発話音声により、装置の操作や情報検索等を行うことができる音声アシスタント機能を有した情報処理装置１の場合には、音声アシスタント機能の応答等の音声も、システム音として例示することができる。
　また、上述したレコメンド情報としては、走行する自車両位置や目的地等の周辺における、おすすめの観光スポット、お店等の情報を例示することができる。 The voice detection unit 30 detects whether voice is being output to the user, and transmits the detection result to the volume control unit 50, which will be described later.
The sound output to the user (hereinafter referred to as system sound) includes the sound of voice guidance (preliminary route information for the next intersection, etc.) for guiding the route to the destination set by the user. , and at least one of the sound of voice guidance of recommendation information for the user.
Here, for example, an activation sound such as "pawn" or a warning sound, which is output at the start of voice guidance such as route guidance, can be exemplified as the system sound.
In addition, in the case of the information processing device 1 having a voice assistant function that can operate the device, search for information, etc., based on the user's uttered voice, the voice such as the response of the voice assistant function is also exemplified as the system sound. be able to.
Further, as the above-described recommendation information, information such as recommended sightseeing spots, shops, etc., in the vicinity of the vehicle's traveling position and the destination can be exemplified.
　音声検出部３０は、図示しないナビゲーション制御部から、システム音を出力しているか否かの情報を受信して、現在システム音が出力されているか否かを検出する。
　ナビゲーション制御部は、目的地までの経路を誘導するための音声案内や、ユーザに対するレコメンド情報の音声案内の内容および出力タイミングを決定し、音声案内等のシステム音の信号を後述する音声出力部４０に送信する。
　ここで、音声検出部３０は、システム音が出力されているか否かを検出できればよいため、例えば、後述する音声出力部４０に入力されているシステム音の信号の大きさを検出し、当該検出結果に基づいて、現在システム音が出力されているか否かを検出するようにしてもよい。 The voice detection unit 30 receives information as to whether or not the system sound is being output from the navigation control unit (not shown), and detects whether or not the system sound is currently being output.
The navigation control unit determines the content and output timing of voice guidance for guiding the route to the destination and voice guidance of recommendation information for the user, and outputs system sound signals such as voice guidance to the voice output unit 40 described later. Send to
Here, the sound detection unit 30 only needs to be able to detect whether or not the system sound is being output. Based on the result, it may be detected whether or not the system sound is currently being output.
　音声出力部４０は、例えば、アンプとスピーカとにより構成され、ユーザに対してシステム音を出力する。
　音声出力部４０は、上述した、ナビゲーション制御部から受信した音声案内等のシステム音を、後述する音量制御部５０から受信した音量設定に基づいて出力する。 The audio output unit 40 is composed of, for example, an amplifier and a speaker, and outputs system sounds to the user.
The audio output unit 40 outputs the system sound such as the audio guidance received from the navigation control unit described above, based on the volume setting received from the volume control unit 50 described later.
　図２を用いて、音量制御部５０について説明する。
　音量制御部５０は、音声検出部３０からユーザに対してシステム音を出力していない旨の検出結果を受信しているときは、騒音レベルに基づいてシステム音の音量を設定し、音声検出部３０から、ユーザに対してシステム音を出力している旨の検出結果を受信しているときは、騒音レベルに基づいたシステム音の音量の設定を行わない。 The volume control unit 50 will be described with reference to FIG.
The volume control unit 50 sets the volume of the system sound based on the noise level when receiving the detection result indicating that the system sound is not output to the user from the sound detection unit 30, and sets the volume of the system sound based on the noise level. 30, when the detection result indicating that the system sound is being output to the user is received, the volume of the system sound is not set based on the noise level.
　図２の（ａ）、（ｂ）に示すように、音量制御部５０は、騒音検出部２０において所定時間毎（例えば、１秒間毎）に検出された騒音レベル（Ｎ１、Ｎ２、・・・）を取得し、その騒音レベルの値に基づいて、システム音の音量設定（Ｓ１、Ｓ２、・・・）を決定する。 As shown in (a) and (b) of FIG. 2, the volume control unit 50 detects noise levels (N1, N2, . ), and determines the volume setting (S1, S2, . . . ) of the system sound based on the value of the noise level.
　音量制御部５０は、音声検出部３０からシステム音が現在出力されていない旨の情報を受信した期間では、騒音レベルに基づいた音量設定を、音声出力部４０に送信する。
　図２の（ｃ）、（ｄ）に示すように、音量制御部５０は、システム音が出力されていない期間（図２の（ｄ）の停止中の期間）では、騒音検出部２０において検出された騒音レベルに基づいた音量設定（例えば、Ｓ１、Ｓ２、Ｓ３、Ｓ６、Ｓ７）を、音声出力部４０に送信する。 The volume control unit 50 transmits the volume setting based on the noise level to the audio output unit 40 during the period in which the information indicating that the system sound is not currently output is received from the audio detection unit 30 .
As shown in FIGS. 2(c) and 2(d), the volume control unit 50 causes the noise detection unit 20 to detect a Volume setting (for example, S1, S2, S3, S6, S7) based on the noise level obtained is transmitted to the audio output unit 40.
　一方で、音声検出部３０からシステム音が現在出力されている旨の情報を受信した期間では、騒音レベルに基づいたシステム音の音量設定を実行しない。
　図２の（ｃ）、（ｄ）に示すように、音量制御部５０は、音声検出部３０からシステム音が現在出力されている期間（図２の（ｄ）の出力中の期間）では、騒音レベルに基づいた音量設定（Ｓ４、Ｓ５）を、音声出力部４０に送信しない。
　つまり、システム音が出力されている期間に検出した騒音レベル（Ｎ４、Ｎ５）は、システム音の音を含んで騒音レベルが検出されるために、騒音レベルが大きくなっている可能性がある。
　そのため、音量制御部５０は、この期間に取得した騒音レベル（Ｎ４、Ｎ５）に基づいた音量設定（Ｓ４、Ｓ５）を、音声出力部４０に送信しない。
　なお、音量設定（Ｓ４、Ｓ５）を音声出力部４０に送信しない期間では、最後に音量制御部５０が、音声出力部４０に送信した音量設定（Ｓ３）により、システム音が出力される。
　ここで、図２に示すように、音量制御部５０は、システム音の音を含んでいる騒音レベル（Ｎ６）に基づいた音量設定（Ｓ６）を、音声出力部４０に送信しているが、システム音の音声出力停止中に音量設定を送信しているため、システム音の出力途中における音量変化は発生しない。
　なお、音量制御部５０の処理の詳細は、以下に説明する。 On the other hand, during the period in which the information indicating that the system sound is currently being output is received from the sound detection unit 30, the volume setting of the system sound based on the noise level is not performed.
As shown in (c) and (d) of FIG. 2, the volume control unit 50, during the period in which the system sound is currently being output from the sound detection unit 30 (the period during output in (d) of FIG. 2), The volume setting (S4, S5) based on the noise level is not transmitted to the audio output section 40.
That is, the noise levels (N4, N5) detected while the system sound is being output may be high because the noise level is detected including the sound of the system sound.
Therefore, the volume control unit 50 does not transmit the volume settings (S4, S5) based on the noise levels (N4, N5) acquired during this period to the audio output unit 40. FIG.
In the period in which the volume settings (S4, S5) are not transmitted to the audio output unit 40, the system sound is output according to the volume setting (S3) finally transmitted to the audio output unit 40 by the volume control unit 50.
Here, as shown in FIG. 2, the volume control unit 50 transmits the volume setting (S6) based on the noise level (N6) including the sound of the system sound to the audio output unit 40. Since the volume setting is sent while the system sound output is stopped, the volume does not change while the system sound is being output.
Details of the processing of the volume control unit 50 will be described below.
＜音量制御部５０の処理＞
　図３および図４を用いて、音量制御部５０の処理の詳細について説明する。 <Processing of Volume Control Unit 50>
Details of the processing of the volume control unit 50 will be described with reference to FIGS. 3 and 4. FIG.
　図３に示すように、音量制御部５０は、車両のＡＣＣ電源（アクセサリ電源）がオン状態であるか否かを判定する（ステップＳ１００）。
　車両のＡＣＣ電源がオン状態にないと判定した場合（ステップＳ１００の「ＮＯ」）には、処理をステップＳ１００に戻し、待機状態に移行する。
　一方で、車両のＡＣＣ電源がオン状態にあると判定した場合（ステップＳ１００の「ＹＥＳ」）には、処理をステップＳ１１０に移行させる。 As shown in FIG. 3, the volume control unit 50 determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S100).
If it is determined that the ACC power supply of the vehicle is not on ("NO" in step S100), the process returns to step S100 and shifts to the standby state.
On the other hand, if it is determined that the ACC power supply of the vehicle is on ("YES" in step S100), the process proceeds to step S110.
　車両のＡＣＣ電源がオン状態にあると判定した場合（ステップＳ１００の「ＹＥＳ」）には、音声出力部４０に設定する音量設定を初期化する（ステップＳ１１０）。
　情報処理装置１の起動直後は、騒音検出部２０において、騒音レベルの検出が完了していないため、音量制御部５０は、ユーザが選択した音量設定を、音声出力部４０に送信する。
　ここで、上述した音量設定は、騒音が少ない状態（例えば、エンジンはオン状態、車両は停車中の状態）において、ユーザがシステム音を聞きながら選択した音量設定である。
　なお、ユーザが設定した音量設定は、図示しないメモリに記憶されている。 If it is determined that the ACC power supply of the vehicle is on ("YES" in step S100), the volume setting to be set in the audio output section 40 is initialized (step S110).
Immediately after the information processing apparatus 1 is activated, the noise detection unit 20 has not yet finished detecting the noise level.
Here, the volume setting described above is the volume setting selected by the user while listening to the system sound in a state of little noise (for example, the engine is on and the vehicle is stopped).
Note that the volume setting set by the user is stored in a memory (not shown).
　音量制御部５０は、騒音検出部２０から騒音レベルを取得し（ステップＳ１２０）、処理をステップＳ１３０に移行させる。 The volume control unit 50 acquires the noise level from the noise detection unit 20 (step S120), and shifts the process to step S130.
　音量制御部５０は、音声検出部３０から受信した情報に基づいて、システム音が現在出力されているか否かを判定する（ステップＳ１３０）。
　システム音が現在出力されていると判定した場合（ステップＳ１３０の「ＹＥＳ」）には、処理をステップＳ１５０に移行させる。
　すなわち、音量制御部５０は、システム音が現在出力されているときには、音声出力部４０の音量設定を行わない。
　一方で、システム音が現在出力されていないと判定した場合（ステップＳ１３０の「ＮＯ」）には、処理をステップＳ１４０に移行させる。 The volume control unit 50 determines whether or not the system sound is currently being output based on the information received from the sound detection unit 30 (step S130).
If it is determined that the system sound is currently being output ("YES" in step S130), the process proceeds to step S150.
That is, the volume control section 50 does not set the volume of the audio output section 40 when the system sound is currently being output.
On the other hand, if it is determined that the system sound is not currently being output ("NO" in step S130), the process proceeds to step S140.
　音量制御部５０は、システム音が現在出力されていないと判定した場合（ステップＳ１３０の「ＮＯ」）には、騒音検出部２０から取得した騒音レベルに基づいて、システム音の音量設定を決定し、その音量設定を音声出力部４０に送信する（ステップＳ１４０）。 When the volume control unit 50 determines that the system sound is not currently being output ("NO" in step S130), the volume control unit 50 determines the volume setting of the system sound based on the noise level acquired from the noise detection unit 20. , and transmits the volume setting to the audio output unit 40 (step S140).
　ここで、音量制御部５０が、騒音検出部２０から取得した騒音レベルに基づいて、システム音の音量設定を決定する方法について説明する。
　図４に示すように、音量制御部５０は、騒音検出部２０から取得した騒音レベルに紐づいた音量の補正量に基づいて、音声出力部４０に設定する音量設定を決定する。
　具体的には、音量制御部５０は、ステップＳ１１０において設定した音量（予めユーザが設定したシステム音の音量）を、騒音レベルに紐づいた音量の補正量に従って、補正する。
　例えば、騒音検出部２０から取得した騒音レベルが、６０ｄＢより大きく６５ｄＢ以下の場合には、音量制御部５０は、ステップＳ１１０で設定された音量が、＋６ｄＢとなる音量設定を音声出力部４０に送信する。
　なお、図４では、騒音検出部２０から取得した騒音レベルの値を４段階に場合分けして、音量補正値を決定しているが、さらに多くの段階に場合分けして、システム音の音量の制御を行ってもよい。 Here, a method for determining the volume setting of the system sound by the volume control unit 50 based on the noise level acquired from the noise detection unit 20 will be described.
As shown in FIG. 4 , the volume control unit 50 determines the volume setting to be set in the audio output unit 40 based on the amount of volume correction associated with the noise level acquired from the noise detection unit 20 .
Specifically, the volume control unit 50 corrects the volume set in step S110 (the volume of the system sound preset by the user) according to the volume correction amount associated with the noise level.
For example, when the noise level obtained from the noise detection unit 20 is greater than 60 dB and equal to or less than 65 dB, the volume control unit 50 transmits to the audio output unit 40 a volume setting in which the volume set in step S110 becomes +6 dB. do.
In FIG. 4, the noise level value obtained from the noise detection unit 20 is divided into four stages to determine the volume correction value. may be controlled.
　音量制御部５０は、車両のＡＣＣ電源（アクセサリ電源）がオン状態であるか否かを判定する（ステップＳ１５０）。
　車両のＡＣＣ電源がオン状態にあると判定した場合（ステップＳ１５０の「ＹＥＳ」）には、処理をステップＳ１２０に移行させ、処理を継続させる。
　一方で、車両のＡＣＣ電源がオン状態にないと判定した場合（ステップＳ１５０の「ＮＯ」）には、処理を終了させる。 The volume control unit 50 determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S150).
If it is determined that the ACC power supply of the vehicle is on ("YES" in step S150), the process proceeds to step S120 to continue the process.
On the other hand, if it is determined that the ACC power supply of the vehicle is not on (“NO” in step S150), the process is terminated.
　本実施形態に係る情報処理装置１は、車両内の音の騒音レベルを検出する騒音検出部２０と、ユーザに対して音声（システム音）を出力しているか否かを検出する音声検出部３０と、音声検出部３０からユーザに対して音声（システム音）を出力していない旨の検出結果を受信しているときは、騒音レベルに基づいて音声（システム音）の音量を設定し、音声検出部３０からユーザに対して音声（システム音）を出力している旨の検出結果を受信しているときは、騒音レベルに基づいた音声（システム音）の音量の設定を行わない音量制御部５０と、を備えている。
　騒音検出部２０は、収音部１０において収音した車両内の音の騒音レベルを検出する。
　音声検出部３０は、ユーザに対してシステム音を現在出力しているか否かを検出する。
　ここで、ユーザに対して出力する音声（システム音）には、ユーザが設定した目的地までの経路を誘導するための音声案内の音、および、ユーザに対するレコメンド情報の音声案内の音の少なくとも一方が含まれる。
　音量制御部５０は、音声検出部３０において、システム音が出力されていないと検出されている期間では、騒音検出部２０において検出された騒音レベルに基づいて、システム音の音量を設定する。
　一方で、音声検出部３０において、システム音が出力されていると検出されている期間では、騒音検出部２０において検出された騒音レベルに基づいたシステム音の音量の設定を行わない。
　騒音検出部２０は、ユーザに対して音声案内等のシステム音が出力されているときには、そのシステム音を含んだ音に基づいて騒音レベルを検出するために、検出した騒音レベルが大きくなってしまうことがある。
　そのため、音量制御部５０は、音声検出部３０において、システム音が出力されていると検出された期間では、騒音検出部２０において検出された騒音レベルに基づいた、システム音の音量設定を実行しない。
　つまり、音量制御部５０は、システム音が出力されている期間では、システム音の音量設定の変更を行わない。
　これにより、システム音の出力途中に発生する音量変化をなくすことができるため、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。
　また、音量制御部５０は、音声検出部３０において、システム音が出力されていないと検出された期間は、騒音検出部２０において検出された騒音レベルに基づいて、システム音の音量を制御する。
　すなわち、音量制御部５０は、ユーザに対して出力した音声案内等のシステム音を含まない騒音レベルに基づいて、システム音の音量設定を行う。
　これにより、車両内の騒音レベルに合わせた適切な音量で、システム音が出力されるため、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。 The information processing apparatus 1 according to the present embodiment includes a noise detection unit 20 that detects the noise level of sound inside the vehicle, and an audio detection unit 30 that detects whether audio (system sound) is being output to the user. Then, when the detection result indicating that no sound (system sound) is output to the user is received from the sound detection unit 30, the volume of the sound (system sound) is set based on the noise level, and the sound A volume control unit that does not set the volume of the sound (system sound) based on the noise level when the detection result indicating that the sound (system sound) is being output to the user is received from the detection unit 30 50 and .
The noise detection unit 20 detects the noise level of the sound inside the vehicle picked up by the sound pickup unit 10 .
The sound detection unit 30 detects whether system sound is currently being output to the user.
Here, the sound (system sound) output to the user is at least one of the sound of voice guidance for guiding the route to the destination set by the user and the sound of recommendation information for the user. is included.
The volume control unit 50 sets the volume of the system sound based on the noise level detected by the noise detection unit 20 during a period when the sound detection unit 30 detects that the system sound is not output.
On the other hand, during a period in which the sound detection unit 30 detects that the system sound is being output, the volume of the system sound is not set based on the noise level detected by the noise detection unit 20 .
When the system sound such as voice guidance is output to the user, the noise detection unit 20 detects the noise level based on the sound including the system sound, so the detected noise level increases. Sometimes.
Therefore, the volume control unit 50 does not set the volume of the system sound based on the noise level detected by the noise detection unit 20 during the period when the sound detection unit 30 detects that the system sound is being output. .
In other words, the volume control unit 50 does not change the volume setting of the system sound while the system sound is being output.
As a result, it is possible to eliminate the change in volume that occurs during the output of the system sound, so that the user can reliably hear the system sound without any sense of incongruity.
Further, the volume control unit 50 controls the volume of the system sound based on the noise level detected by the noise detection unit 20 during a period when the sound detection unit 30 detects that the system sound is not output.
That is, the volume control unit 50 sets the volume of the system sound based on the noise level that does not include the system sound such as the voice guidance output to the user.
As a result, the system sound is output at an appropriate volume according to the noise level inside the vehicle, so that the user can reliably hear the system sound without any sense of discomfort.
　また、本実施例に係る情報処理装置１の音量制御部５０では、車両内の騒音レベルに合わせた音量補正制御が行われるため、ユーザが予め設定した音量に近い音量でシステム音が出力される。
　これにより、騒音下であっても、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。 Further, since the volume control unit 50 of the information processing apparatus 1 according to the present embodiment performs volume correction control in accordance with the noise level inside the vehicle, the system sound is output at a volume close to the volume preset by the user. .
As a result, even in a noisy environment, the user can reliably hear the system sound without hearing discomfort.
　また、本実施例に係る情報処理装置１の音量制御部５０は、システム音が出力されていないときにも、騒音レベルに基づいた音量設定を音声出力部４０に送信する。
　これにより、音量制御部５０が、音声案内等のシステム音の出力タイミングを把握することができない構成であっても、音声出力部４０には、常に騒音レベルに基づいた音量設定が送信されているため、システム音がいつ出力されても、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。 Also, the volume control unit 50 of the information processing apparatus 1 according to the present embodiment transmits the volume setting based on the noise level to the audio output unit 40 even when the system sound is not output.
As a result, even if the volume control unit 50 cannot grasp the output timing of system sounds such as voice guidance, the volume setting based on the noise level is always transmitted to the voice output unit 40. Therefore, whenever the system sound is output, the user can certainly hear the system sound without any sense of discomfort.
　また、本実施例に係る情報処理装置１の音量制御部５０は、騒音検出部２０から騒音レベルを受信したタイミングにおいて、システム音の音量設定を決定し、当該音量設定を音声出力部４０に送信する。
　システム音が出力されるタイミングに合わせて音量設定を音声出力部４０に送信する場合には、騒音レベルに基づいて決定した音量設定の値を一時的にメモリに保持する必要がある。
　しかしながら、音量制御部５０は、システム音が出力されるタイミングに合わせて音量設定を行う必要がないため、音量設定を記憶するためのメモリを削除することができる。 Further, the volume control unit 50 of the information processing apparatus 1 according to the present embodiment determines the volume setting of the system sound at the timing of receiving the noise level from the noise detection unit 20, and transmits the volume setting to the audio output unit 40. do.
When the volume setting is transmitted to the audio output unit 40 at the timing when the system sound is output, it is necessary to temporarily store the volume setting value determined based on the noise level in the memory.
However, since the volume control unit 50 does not need to set the volume in accordance with the timing at which the system sound is output, the memory for storing the volume setting can be deleted.
＜実施例２＞
　図５から図７を用いて、本実施例に係る情報処理装置１Ａについて説明する。
　なお、実施例１と同一の符号を付す構成要素については、同様の機能を有することから、その詳細な説明は省略する。 <Example 2>
An information processing apparatus 1A according to the present embodiment will be described with reference to FIGS. 5 to 7. FIG.
In addition, since the components denoted by the same reference numerals as those in the first embodiment have the same functions, detailed description thereof will be omitted.
＜情報処理装置１Ａの構成＞
　図５を用いて、本実施例に係る情報処理装置１Ａの構成について説明する。
　情報処理装置１Ａは、収音部１０と、騒音検出部２０Ａと、音声検出部３０Ａと、音声出力部４０と、音量制御部５０Ａと、を少なくとも含んで構成されている。 <Configuration of information processing device 1A>
The configuration of the information processing apparatus 1A according to this embodiment will be described with reference to FIG.
The information processing apparatus 1A includes at least a sound pickup section 10, a noise detection section 20A, a sound detection section 30A, a sound output section 40, and a volume control section 50A.
　騒音検出部２０Ａは、収音部１０において収音した音の騒音レベルを検出する。
　騒音検出部２０Ａは、例えば、収音部１０から受信した音を、所定時間毎（例えば、１秒間毎）に分割し、その分割した音毎に騒音レベルの平均値を算出し、その算出した値を、後述する音量制御部５０Ａに送信する。
　ここで、騒音検出部２０Ａは、車両内の騒音レベルを検出できればよく、例えば、所定時間毎に分割した音毎の騒音レベルの最大値を検出するようにしてもよい。
　また、騒音検出部２０Ａは、後述する音声検出部３０Ａから、システム音が出力されているか否かの情報を受信し、騒音レベルを検出したときに、システム音が出力されていたか否かを判定する。
　なお、騒音レベルを検出したときに、システム音が出力されていたか否かの判定結果は、検出した騒音レベルの値を音量制御部５０Ａに送信するときに、あわせて送信される。 The noise detection section 20A detects the noise level of the sound picked up by the sound pickup section 10 .
The noise detection unit 20A, for example, divides the sound received from the sound pickup unit 10 into predetermined time intervals (eg, every second), calculates the average value of the noise level for each divided sound, and calculates the average value of the noise level. The value is transmitted to the volume control section 50A, which will be described later.
Here, the noise detection unit 20A only needs to be able to detect the noise level inside the vehicle.
Further, the noise detection unit 20A receives information as to whether or not the system sound is being output from the audio detection unit 30A, which will be described later, and determines whether or not the system sound is being output when the noise level is detected. do.
The determination result as to whether or not the system sound was being output when the noise level was detected is also sent when the value of the detected noise level is sent to the volume control section 50A.
　音声検出部３０Ａは、システム音が現在出力されているか否かを検出し、その検出結果を騒音検出部２０Ａに送信する。 The sound detection unit 30A detects whether or not system sound is currently being output, and transmits the detection result to the noise detection unit 20A.
　図６を用いて、音量制御部５０Ａについて説明する。
　音量制御部５０Ａは、システム音が出力されていない期間に検出された騒音レベルを、騒音検出部２０Ａから受信した場合には、騒音レベルに基づいてシステム音の音量を設定し、システム音が出力されている期間に検出された騒音レベルを、騒音検出部２０Ａから受信した場合には、騒音レベルに基づいたシステム音の音量設定を実行しない。 The volume control section 50A will be described with reference to FIG.
When the volume control unit 50A receives the noise level detected during a period in which the system sound is not output from the noise detection unit 20A, the volume control unit 50A sets the volume of the system sound based on the noise level, and outputs the system sound. When the noise level detected during the period is received from the noise detection unit 20A, the volume setting of the system sound based on the noise level is not executed.
　図６の（ａ）、（ｂ）に示すように、音量制御部５０Ａは、騒音検出部２０Ａにおいて所定時間毎（例えば、１秒間毎）に検出された騒音レベル（Ｎ１、Ｎ２、・・・）を取得し、その騒音レベルの値に基づいて、システム音の音量設定（Ｓ１、Ｓ２、・・・）を決定する。 As shown in (a) and (b) of FIG. 6, the volume control unit 50A adjusts the noise levels (N1, N2, . ), and determines the volume setting (S1, S2, . . . ) of the system sound based on the value of the noise level.
　音量制御部５０Ａは、騒音検出部２０Ａから取得した騒音レベルが、システム音が出力されていない期間に検出された場合には、音声出力部４０に、騒音レベルに基づいたシステム音の音量設定を送信する。
　図６（ａ）～（ｄ）に示すように、音量制御部５０Ａは、システム音が出力されていない期間に検出された騒音レベルを騒音検出部２０Ａから取得した場合（例えば、Ｎ１、Ｎ２、Ｎ３、Ｎ７）には、その騒音レベルに基づいた音量設定（例えば、Ｓ１、Ｓ２、Ｓ３、Ｓ７）を、音声出力部４０に送信する。 When the noise level acquired from the noise detection unit 20A is detected during a period in which the system sound is not output, the volume control unit 50A instructs the audio output unit 40 to set the volume of the system sound based on the noise level. Send.
As shown in FIGS. 6A to 6D, the volume control unit 50A obtains from the noise detection unit 20A the noise level detected during the period in which the system sound is not output (for example, N1, N2, N3, N7), the volume setting (for example, S1, S2, S3, S7) based on the noise level is transmitted to the audio output unit 40.
　一方で、システム音が出力されている期間に検出された騒音レベルを騒音検出部２０Ａから取得した場合には、音量制御部５０Ａは、騒音レベルに基づいた音量設定を行わない。
　図６（ａ）～（ｄ）に示すように、音量制御部５０Ａは、システム音が出力されている期間に検出された騒音レベルを、騒音検出部２０Ａから取得した場合（Ｎ４～Ｎ６）には、その騒音レベルに基づいた音量設定（Ｓ４～Ｓ６）を音声出力部４０に送信しない。
　つまり、システム音が出力されている期間の騒音レベル（Ｎ４～Ｎ６）は、システム音の音を含んで検出されているため、騒音レベルが大きくなっている可能性がある。
　そのため、音量制御部５０Ａは、システム音が出力されている期間に検出した騒音レベル（Ｎ４～Ｎ６）に基づいた音量設定（Ｓ４～Ｓ６）を、音声出力部４０に送信しない。
　音量設定（Ｓ４～Ｓ６）を音声出力部４０に送信しない期間では、最後に音量制御部５０Ａが音声出力部に送信した音量設定（Ｓ３）により、システム音が出力される。
　なお、音量制御部５０Ａの処理の詳細は、以下に説明する。 On the other hand, when the noise level detected while the system sound is being output is acquired from the noise detection section 20A, the volume control section 50A does not set the volume based on the noise level.
As shown in FIGS. 6A to 6D, the volume control unit 50A acquires the noise level detected during the period in which the system sound is being output from the noise detection unit 20A (N4 to N6). does not transmit the volume setting (S4 to S6) based on the noise level to the audio output unit 40.
In other words, the noise level (N4 to N6) during the period in which the system sound is being output is detected including the sound of the system sound, so the noise level may be high.
Therefore, the volume control unit 50A does not transmit to the audio output unit 40 the volume settings (S4 to S6) based on the noise levels (N4 to N6) detected while the system sound is being output.
During the period in which the volume settings (S4 to S6) are not transmitted to the audio output unit 40, the system sound is output according to the volume setting (S3) last transmitted from the volume control unit 50A to the audio output unit.
Details of the processing of the volume control unit 50A will be described below.
＜音量制御部５０Ａの処理＞
　図７を用いて、音量制御部５０Ａの処理の詳細について説明する。 <Processing of Volume Control Unit 50A>
Details of the processing of the volume control unit 50A will be described with reference to FIG.
　図７に示すように、音量制御部５０Ａは、車両のＡＣＣ電源（アクセサリ電源）がオン状態であるか否かを判定する（ステップＳ１００）。
　車両のＡＣＣ電源がオン状態にないと判定した場合（ステップＳ１００の「ＮＯ」）には、処理をステップＳ１００に戻し、待機状態に移行する。
　一方で、車両のＡＣＣ電源がオン状態にあると判定した場合（ステップＳ１００の「ＹＥＳ」）には、処理をステップＳ１１０に移行させる。 As shown in FIG. 7, the volume control unit 50A determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S100).
If it is determined that the ACC power supply of the vehicle is not on ("NO" in step S100), the process returns to step S100 and shifts to the standby state.
On the other hand, if it is determined that the ACC power supply of the vehicle is on ("YES" in step S100), the process proceeds to step S110.
　車両のＡＣＣ電源がオン状態にあると判定した場合（ステップＳ１００の「ＹＥＳ」）には、音声出力部４０に設定する音量設定を初期化する（ステップＳ１１０）。
　情報処理装置１Ａの起動直後は、騒音検出部２０Ａにおいて、騒音レベルが検出されていないため、音量制御部５０Ａは、ユーザが選択した音量設定を、音声出力部４０に送信する。
　なお、上述した音量設定は、騒音が少ない状態（例えば、エンジンはオン状態、車両は停車中の状態）において、ユーザがシステム音を聞きながら選択した音量設定である。
　なお、ユーザが設定した音量設定は、図示しないメモリに記憶されている。 If it is determined that the ACC power supply of the vehicle is on ("YES" in step S100), the volume setting to be set in the audio output section 40 is initialized (step S110).
Immediately after the information processing apparatus 1A is activated, the noise detection section 20A does not detect the noise level, so the volume control section 50A transmits the volume setting selected by the user to the audio output section 40. FIG.
The volume setting described above is the volume setting selected by the user while listening to the system sound in a low noise state (for example, the engine is on and the vehicle is stopped).
Note that the volume setting set by the user is stored in a memory (not shown).
　音量制御部５０Ａは、騒音検出部２０Ａから、騒音レベルと、その騒音レベルがシステム音の出力中に検出されたか否かの判定情報と、を取得し（ステップＳ２００）、処理をステップＳ２１０に移行させる。 The volume control unit 50A acquires the noise level and determination information as to whether or not the noise level was detected during output of the system sound from the noise detection unit 20A (step S200), and the process proceeds to step S210. Let
　音量制御部５０Ａは、ステップＳ２００において取得した騒音レベルが、システム音が出力されているときに検出された騒音レベルであるか否かを判定する（ステップＳ２１０）。
　システム音が出力されているときに検出された騒音レベルであると判定した場合（ステップＳ２１０の「ＹＥＳ」）には、処理をステップＳ１５０に移行させる。
　すなわち、音量制御部５０Ａは、騒音検出部２０Ａから取得した騒音レベルが、システム音が出力されているときに検出された騒音レベルの場合には、音声出力部４０に音量設定を行わない。
　一方で、システム音が出力されていないときに検出された騒音レベルであると判定した場合（ステップＳ２１０の「ＮＯ」）には、処理をステップＳ１４０に移行させる。 Volume control unit 50A determines whether or not the noise level acquired in step S200 is the noise level detected when the system sound is being output (step S210).
If it is determined that the noise level is the one detected when the system sound is being output ("YES" in step S210), the process proceeds to step S150.
That is, the volume control unit 50A does not set the volume to the audio output unit 40 when the noise level acquired from the noise detection unit 20A is the noise level detected when the system sound is being output.
On the other hand, if it is determined that the noise level is detected when the system sound is not output ("NO" in step S210), the process proceeds to step S140.
　システム音が出力されていないときに検出された騒音レベルであると判定した場合（ステップＳ２１０の「ＮＯ」）には、騒音検出部２０Ａから取得した騒音レベルに基づいて、システム音の音量設定を決定し、その音量設定を音声出力部４０に送信する（ステップＳ１４０）。
　なお、音量制御部５０Ａが、騒音検出部２０Ａから取得した騒音レベルに基づいて、音声の音量を決定する方法については、上述した実施例１と同じである。 If it is determined that the noise level is detected when the system sound is not output ("NO" in step S210), the system sound volume setting is performed based on the noise level obtained from the noise detection unit 20A. Then, the volume setting is transmitted to the audio output unit 40 (step S140).
The method by which the volume control unit 50A determines the volume of the sound based on the noise level acquired from the noise detection unit 20A is the same as in the first embodiment described above.
　音量制御部５０Ａは、車両のＡＣＣ電源（アクセサリ電源）がオン状態であるか否かを判定する（ステップＳ１５０）。
　車両のＡＣＣ電源がオン状態にあると判定した場合（ステップＳ１５０の「ＹＥＳ」）には、処理をステップＳ１２０に移行させ、処理を継続させる。
　一方で、車両のＡＣＣ電源がオン状態にないと判定した場合（ステップＳ１５０の「ＮＯ」）には、処理を終了させる。 The volume control unit 50A determines whether or not the ACC power supply (accessory power supply) of the vehicle is on (step S150).
If it is determined that the ACC power supply of the vehicle is on ("YES" in step S150), the process proceeds to step S120 to continue the process.
On the other hand, if it is determined that the ACC power supply of the vehicle is not on (“NO” in step S150), the process is terminated.
　本実施例に係る情報処理装置１Ａは、車両内の音の騒音レベルを検出する騒音検出部２０Ａと、ユーザに対して音声（システム音）を出力しているか否かを検出する音声検出部３０Ａと、音声（システム音）が出力されていない期間に検出された騒音レベルの場合には、騒音レベルに基づいて音声（システム音）の音量を設定し、音声（システム音）が出力されている期間に検出された騒音レベルの場合には、騒音レベルに基づいた音声（システム音）の音量の設定を行わない音量制御部５０Ａと、を備えている。
　ここで、ユーザに対して出力する音声（システム音）には、ユーザが設定した目的地までの経路を誘導するための音声案内の音、および、ユーザに対するレコメンド情報の音声案内の音の少なくとも一方が含まれる。
　騒音検出部２０Ａは、収音部１０において収音した音に基づいて、車両内の騒音レベルを検出する。
　また、騒音検出部２０Ａは、音声検出部３０Ａから受信した、音声が出力されているか否かの情報に基づいて、騒音レベルの検出中に、システム音が出力されていたか否かの判定を行う。
　音声検出部３０Ａは、システム音が、現在出力されているか否かを検出する。
　音量制御部５０Ａは、システム音が出力されていない期間に検出された騒音レベルを騒音検出部２０Ａから受信した場合には、当該騒音レベルに基づいた音量設定を、音声出力部４０に送信する。
　また、音量制御部５０Ａは、システム音が出力されている期間に検出された騒音レベルを騒音検出部２０Ａから受信した場合には、騒音レベルに基づいた音量の設定を行わない。
　騒音検出部２０Ａは、システム音が出力されているときには、そのシステム音を含んだ音に基づいて騒音レベルを検出するために、検出した騒音レベルが大きくなってしまうことがある。
　そのため、音量制御部５０Ａは、システム音が出力されている期間に検出された騒音レベルを騒音検出部２０Ａから受信した場合には、システム音の音量設定の変更を行わない。
　これにより、システム音の出力途中に発生する音量変化をなくすことができるため、ユーザは聴感上違和感なく、音声を確実に聞き取ることができる。
　また、音量制御部５０Ａは、システム音が出力されていない期間に検出された騒音レベルを騒音検出部２０Ａから受信した場合には、その騒音レベルの値に基づいてシステム音の音量を制御する。
　これにより、システム音の音声の影響を含まない騒音レベルに合わせた適切な音量で、システム音が出力されるため、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。 The information processing apparatus 1A according to the present embodiment includes a noise detection unit 20A for detecting the noise level of sound inside the vehicle, and a sound detection unit 30A for detecting whether or not sound (system sound) is being output to the user. If the noise level is detected during a period when no sound (system sound) is output, the volume of the sound (system sound) is set based on the noise level, and the sound (system sound) is output. and a volume control unit 50A that does not set the volume of the sound (system sound) based on the noise level in the case of the noise level detected during the period.
Here, the sound (system sound) output to the user is at least one of the sound of voice guidance for guiding the route to the destination set by the user and the sound of recommendation information for the user. is included.
The noise detection unit 20A detects the noise level inside the vehicle based on the sound picked up by the sound pickup unit 10 .
Further, the noise detection unit 20A determines whether or not the system sound is being output during the detection of the noise level, based on the information received from the sound detection unit 30A and indicating whether or not the sound is being output. .
The audio detection unit 30A detects whether system sounds are currently being output.
The volume control unit 50A, when receiving from the noise detection unit 20A the noise level detected while the system sound is not output, transmits the volume setting based on the noise level to the audio output unit 40.
When the volume control unit 50A receives the noise level detected while the system sound is being output from the noise detection unit 20A, the volume control unit 50A does not set the volume based on the noise level.
Since the noise detection unit 20A detects the noise level based on the sound including the system sound when the system sound is being output, the detected noise level may increase.
Therefore, the volume control unit 50A does not change the volume setting of the system sound when receiving the noise level detected while the system sound is being output from the noise detection unit 20A.
As a result, it is possible to eliminate the change in volume that occurs during the output of the system sound, so that the user can reliably hear the sound without any sense of incongruity.
When the volume control unit 50A receives the noise level detected during a period in which the system sound is not output from the noise detection unit 20A, the volume control unit 50A controls the volume of the system sound based on the value of the noise level.
As a result, the system sound is output at an appropriate volume that matches the noise level that does not include the effects of the voice of the system sound.
　また、本実施例に係る情報処理装置１Ａの音量制御部５０Ａでは、車両内の騒音レベルに合わせた音量補正制御が行われるため、ユーザが予め設定した音量に近い音量でシステム音が出力される。
　これにより、騒音下であっても、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。 Further, since the volume control unit 50A of the information processing apparatus 1A according to the present embodiment performs volume correction control in accordance with the noise level inside the vehicle, the system sound is output at a volume close to the volume preset by the user. .
As a result, even in a noisy environment, the user can reliably hear the system sound without hearing discomfort.
　図２に示すように、上述した情報処理装置１の音量制御部５０は、システム音を含む騒音レベル（Ｎ６）に基づいた音量設定（Ｓ６）を、音声出力部４０に送信しているが、図６に示すように、本実施例に係る情報処理装置１Ａの音量制御部５０Ａは、システム音の音声を含む騒音レベル（Ｎ６）に基づいた音量設定（Ｓ６）を、音声出力部４０に送信しない。
　例えば、図２において、音量設定（Ｓ６）が音声出力部４０に設定されている期間に、システム音の出力が開始されると、システム音の出力途中に発生する音量変化は発生しないが、システム音の音量が、大きな音になる可能性がある。
　一方で、情報処理装置１Ａでは、システム音を含む騒音レベル（Ｎ６）に基づいた音量設定（Ｓ６）を音声出力部４０に送信しないため、常にシステム音を含まない騒音レベルに基づいた音量設定を行うことができる。 As shown in FIG. 2, the volume control unit 50 of the information processing device 1 described above transmits the volume setting (S6) based on the noise level (N6) including the system sound to the audio output unit 40. As shown in FIG. 6, the volume control unit 50A of the information processing device 1A according to the present embodiment transmits the volume setting (S6) based on the noise level (N6) including the system sound to the audio output unit 40. do not.
For example, in FIG. 2, when the output of the system sound is started while the volume setting (S6) is set in the audio output unit 40, the volume change that occurs during the output of the system sound does not occur, but the system The sound volume can be loud.
On the other hand, in the information processing apparatus 1A, since the volume setting (S6) based on the noise level (N6) including the system sound is not transmitted to the audio output section 40, the volume setting based on the noise level not including the system sound is always performed. It can be carried out.
　また、本実施例に係る情報処理装置１Ａの音量制御部５０Ａは、システム音が出力されていないときにも、騒音レベルに基づいた音量設定を音声出力部４０に送信する。
　これにより、音量制御部５０Ａが、音声案内等のシステム音の出力タイミングを把握することができない構成であっても、音声出力部４０には、常に騒音レベルに基づいた音量設定が送信されているため、システム音がいつ出力されても、ユーザは聴感上違和感なく、システム音を確実に聞き取ることができる。 Moreover, the volume control unit 50A of the information processing apparatus 1A according to the present embodiment transmits the volume setting based on the noise level to the audio output unit 40 even when the system sound is not output.
As a result, even if the volume control unit 50A cannot grasp the output timing of system sounds such as voice guidance, the volume setting based on the noise level is always transmitted to the voice output unit 40. Therefore, whenever the system sound is output, the user can certainly hear the system sound without any sense of discomfort.
　また、本実施例に係る情報処理装置１Ａの音量制御部５０Ａは、騒音検出部２０Ａから騒音レベルを受信したタイミングにおいて、システム音の音量設定を決定し、当該音量設定を音声出力部４０に送信する。
　システム音が出力されるタイミングに合わせて音量設定を音声出力部４０に送信する場合には、騒音レベルに基づいて決定した音量設定の値を一時的にメモリに保持する必要がある。
　しかしながら、音量制御部５０Ａは、システム音が出力されるタイミングに合わせて音量設定を行う必要がないため、音量設定を記憶するためのメモリを削除することができる。 Further, the volume control unit 50A of the information processing apparatus 1A according to the present embodiment determines the volume setting of the system sound at the timing of receiving the noise level from the noise detection unit 20A, and transmits the volume setting to the audio output unit 40. do.
When the volume setting is transmitted to the audio output unit 40 at the timing when the system sound is output, it is necessary to temporarily store the volume setting value determined based on the noise level in the memory.
However, since the volume control unit 50A does not need to set the volume in accordance with the timing at which the system sound is output, the memory for storing the volume setting can be deleted.
＜その他の実施例＞
　上述した情報処理装置１Ａでは、音声検出部３０Ａの検出結果を騒音検出部２０Ａに送信していたが、音量制御部５０Ａに送信するようにしてもよい。
　すなわち、情報処理装置１Ａでは、騒音レベルの検出中にシステム音が出力されていたか否かの情報を騒音検出部２０Ａから受信して、音量制御部５０Ａがシステム音の音量設定を制御していたが、音声検出部３０Ａから検出結果を受信して、音量制御部５０Ａが、騒音レベルの検出中にシステム音が出力されていたか否かを判断するようにしてもよい。
　具体的には、音量制御部５０Ａは、音声検出部３０Ａからシステム音が出力されている旨の情報を受信している期間に、騒音検出部２０Ａから受信した騒音レベルには、システム音の影響が含まれていると判断する。
　また、音量制御部５０Ａは、システム音の出力が終了し、音声検出部３０Ａから、システム音が出力されていない旨の情報を受信した直後に、騒音検出部２０Ａから受信した騒音レベルには、システム音の影響が含まれていると判断する。
　音量制御部５０Ａは、上述した判断結果に基づいて、騒音検出部２０Ａから受信した騒音レベルの検出中に、システム音が出力されていたか否かを判断する。
　音量制御部５０Ａは、騒音検出部２０Ａから受信した騒音レベルが、システム音が出力されていないときに検出されたと判断した場合には、その騒音レベルに基づいた音量設定を音声出力部４０に送信する。
　また、騒音検出部２０Ａから受信した騒音レベルが、システム音が出力されているときに検出されたと判断した場合には、騒音レベルに基づいた音量設定を音声出力部４０に送信しない。
　これにより、音量制御部５０Ａは、システム音の出力途中に音量変化が発生しないように音量設定の制御を行うことができるため、ユーザは聴感上違和感なく、音声を確実に聞き取ることができる。
　また、上述した構成の場合、音声検出部３０Ａの検出結果を騒音検出部２０Ａに送信する必要がないため、収音部１０および騒音検出部２０は、汎用の騒音計を用いて構成することができる。 <Other Examples>
In the information processing apparatus 1A described above, the detection result of the voice detection section 30A is transmitted to the noise detection section 20A, but it may be transmitted to the volume control section 50A.
That is, in the information processing apparatus 1A, the information as to whether or not the system sound was being output during detection of the noise level was received from the noise detection section 20A, and the volume control section 50A controlled the volume setting of the system sound. However, the volume control section 50A may receive the detection result from the sound detection section 30A and determine whether or not the system sound was being output during the detection of the noise level.
Specifically, while the volume control unit 50A is receiving information indicating that the system sound is being output from the sound detection unit 30A, the noise level received from the noise detection unit 20A is influenced by the system sound. determine that it contains
In addition, immediately after the output of the system sound is completed and the volume control unit 50A receives information indicating that the system sound is not being output from the sound detection unit 30A, the noise level received from the noise detection unit 20A is Judge that the influence of the system sound is included.
Volume control unit 50A determines whether or not the system sound was being output during detection of the noise level received from noise detection unit 20A, based on the determination result described above.
When the volume control unit 50A determines that the noise level received from the noise detection unit 20A is detected when the system sound is not being output, the volume control unit 50A transmits the volume setting based on the noise level to the audio output unit 40. do.
Further, when it is determined that the noise level received from the noise detection section 20A is detected while the system sound is being output, the volume setting based on the noise level is not transmitted to the audio output section 40. - 特許庁
As a result, the volume control unit 50A can control the volume setting so that the volume does not change during the output of the system sound, so that the user can surely hear the voice without any sense of incongruity.
In addition, in the case of the configuration described above, since it is not necessary to transmit the detection result of the voice detection unit 30A to the noise detection unit 20A, the sound pickup unit 10 and the noise detection unit 20 can be configured using a general-purpose sound level meter. can.
　以上、この発明の実施例につき、図面を参照して詳述してきたが、具体的な構成はこの実施例に限られるものではなく、この発明の要旨を逸脱しない範囲の設計等も含まれる。 Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and includes designs within the scope of the gist of the present invention.
　１；情報処理装置
　１Ａ；情報処理装置
　１０；収音部
　２０；騒音検出部
　２０Ａ；騒音検出部
　３０；音声検出部
　３０Ａ；音声検出部
　４０；音声出力部
　５０；音量制御部
　５０Ａ；音量制御部 1; information processing device 1A; information processing device 10; sound pickup unit 20; noise detection unit 20A; noise detection unit 30;

Claims (7)

  1. 　車両内の音の騒音レベルを検出する騒音検出部と、
    　ユーザに対して音声を出力しているか否かを検出する音声検出部と、
    　前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない音量制御部と、
    　を備えることを特徴とする情報処理装置。     a noise detection unit that detects the noise level of sound inside the vehicle;
    a voice detection unit that detects whether voice is being output to a user;
    When the detection result indicating that the sound is not output to the user is received from the sound detection unit, the volume of the sound is set based on the noise level, and the sound detection unit outputs the sound to the user. a volume control unit that does not set the volume of the sound based on the noise level when receiving the detection result indicating that the sound is being output to the
    An information processing device comprising:
  2. 　車両内の音の騒音レベルを検出する騒音検出部と、
    　ユーザに対して音声を出力しているか否かを検出する音声検出部と、
    　前記音声が出力されていない期間に検出された前記騒音レベルの場合には、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声が出力されている期間に検出された前記騒音レベルの場合には、前記騒音レベルに基づいた前記音声の音量の設定を行わない音量制御部と、
    　を備えることを特徴とする情報処理装置。     a noise detection unit that detects the noise level of sound inside the vehicle;
    a voice detection unit that detects whether voice is being output to a user;
    In the case of the noise level detected during the period in which the sound is not output, the volume of the sound is set based on the noise level, and the noise level detected during the period in which the sound is output is adjusted. case, a volume control unit that does not set the volume of the sound based on the noise level;
    An information processing device comprising:
  3. 　前記音声が、前記ユーザが設定した目的地までの経路を誘導するための音声案内の音であることを特徴とする請求項１または２に記載の情報処理装置。 The information processing apparatus according to claim 1 or 2, wherein the voice is voice guidance sound for guiding the route to the destination set by the user.
  4. 　前記音声が、前記ユーザに対するレコメンド情報の音声案内の音であることを特徴とする請求項１または２に記載の情報処理装置。 3. The information processing apparatus according to claim 1 or 2, wherein the voice is voice guidance of recommendation information for the user.
  5. 　騒音検出部と、音声検出部と、音量制御部と、を備えた情報処理装置の情報処理方法であって、
    　前記騒音検出部が、車両内の音の騒音レベルを検出する第１の工程と、
    　前記音声検出部が、ユーザに対して音声を出力しているか否かを検出する第２の工程と、
    　前記音量制御部が、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない第３の工程と、
    　を備える情報処理方法。     An information processing method for an information processing device comprising a noise detection unit, a voice detection unit, and a volume control unit,
    a first step in which the noise detection unit detects a noise level of sound in the vehicle;
    a second step of detecting whether or not the voice detection unit is outputting voice to the user;
    When the volume control unit receives a detection result indicating that the audio is not output to the user from the audio detection unit, the volume of the audio is set based on the noise level, a third step of not setting the volume of the sound based on the noise level when a detection result indicating that the sound is being output to the user is received from the sound detection unit;
    An information processing method comprising:
  6. 　騒音検出部と、音声検出部と、音量制御部と、を備えた情報処理装置の情報処理方法をコンピュータに実行させるためのプログラムであって、
    　前記騒音検出部が、収音した車両内の音に基づいて騒音レベルを検出する第１の工程と、
    　前記音声検出部が、ユーザに対して音声を出力しているか否かを検出する第２の工程と、
    　前記音量制御部が、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない第３の工程と、
    　を備える情報処理方法をコンピュータに実行させるためのプログラム。     A program for causing a computer to execute an information processing method for an information processing device comprising a noise detection unit, a voice detection unit, and a volume control unit,
    a first step in which the noise detection unit detects a noise level based on the collected sound inside the vehicle;
    a second step of detecting whether or not the voice detection unit is outputting voice to the user;
    When the volume control unit receives a detection result indicating that the audio is not output to the user from the audio detection unit, the volume of the audio is set based on the noise level, a third step of not setting the volume of the sound based on the noise level when a detection result indicating that the sound is being output to the user is received from the sound detection unit;
    A program for causing a computer to execute an information processing method comprising
  7. 　騒音検出部と、音声検出部と、音量制御部と、を備えた情報処理装置の情報処理方法をコンピュータに実行させるためのプログラムを記録したコンピュータが読み取り可能な非一過性の記録媒体であって、
    　前記騒音検出部が、収音した車両内の音に基づいて騒音レベルを検出する第１の工程と、
    　前記音声検出部が、ユーザに対して音声を出力しているか否かを検出する第２の工程と、
    　前記音量制御部が、前記音声検出部から前記ユーザに対して前記音声を出力していない旨の検出結果を受信しているときは、前記騒音レベルに基づいて前記音声の音量を設定し、前記音声検出部から前記ユーザに対して前記音声を出力している旨の検出結果を受信しているときは、前記騒音レベルに基づいた前記音声の音量の設定を行わない第３の工程と、
    　を備える情報処理方法をコンピュータに実行させるためのプログラムを記録した非一過性の記録媒体。     A computer-readable, non-transitory recording medium recording a program for causing a computer to execute an information processing method of an information processing apparatus comprising a noise detection section, a voice detection section, and a volume control section. hand,
    a first step in which the noise detection unit detects a noise level based on the collected sound inside the vehicle;
    a second step of detecting whether or not the voice detection unit is outputting voice to the user;
    When the volume control unit receives a detection result indicating that the audio is not output to the user from the audio detection unit, the volume of the audio is set based on the noise level, a third step of not setting the volume of the sound based on the noise level when a detection result indicating that the sound is being output to the user is received from the sound detection unit;
    A non-transitory recording medium recording a program for causing a computer to execute an information processing method comprising
PCT/JP2022/006027 2022-02-15 2022-02-15 Information processing device, information processing method, program, and recording medium WO2023157101A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/006027 WO2023157101A1 (en) 2022-02-15 2022-02-15 Information processing device, information processing method, program, and recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/006027 WO2023157101A1 (en) 2022-02-15 2022-02-15 Information processing device, information processing method, program, and recording medium

Publications (1)

Publication Number Publication Date
WO2023157101A1 true WO2023157101A1 (en) 2023-08-24

Family

ID=87577775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/006027 WO2023157101A1 (en) 2022-02-15 2022-02-15 Information processing device, information processing method, program, and recording medium

Country Status (1)

Country Link
WO (1) WO2023157101A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09330089A (en) * 1996-06-07 1997-12-22 Fujitsu Ten Ltd Voice control device
JP2001082976A (en) * 1999-09-14 2001-03-30 Matsushita Electric Ind Co Ltd Route guiding device
JP2002091488A (en) * 2000-01-31 2002-03-27 Matsushita Electric Ind Co Ltd On-vehicle navigation device
JP2009163105A (en) * 2008-01-09 2009-07-23 Alpine Electronics Inc Voice articulateness improvement system, and voice articulateness improvement method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09330089A (en) * 1996-06-07 1997-12-22 Fujitsu Ten Ltd Voice control device
JP2001082976A (en) * 1999-09-14 2001-03-30 Matsushita Electric Ind Co Ltd Route guiding device
JP2002091488A (en) * 2000-01-31 2002-03-27 Matsushita Electric Ind Co Ltd On-vehicle navigation device
JP2009163105A (en) * 2008-01-09 2009-07-23 Alpine Electronics Inc Voice articulateness improvement system, and voice articulateness improvement method

Similar Documents

Publication Publication Date Title
US9230538B2 (en) Voice recognition device and navigation device
CN105529996B (en) Automatic volume control based on speech recognition
US9786263B2 (en) Electronic apparatus and noise reduction method
US10932042B2 (en) Conversation assist apparatus and conversation assist method
JP2007208828A (en) Vehicular audio input controller
JP2010283506A (en) Acoustic processing device for vehicle installation
WO2023157101A1 (en) Information processing device, information processing method, program, and recording medium
JP4381291B2 (en) Car audio system
JP2010141468A (en) Onboard acoustic apparatus
WO2023157783A1 (en) Information processing device, information processing method, program, and recording medium
JP2007043356A (en) Device and method for automatic sound volume control
JP5132376B2 (en) Voice improvement device and voice improvement method
JPH09330089A (en) Voice control device
JP4173765B2 (en) Hearing loss prevention device
JP2002171587A (en) Sound volume regulator for on-vehicle acoustic device and sound recognition device using it
JP7257834B2 (en) Speech processing device, speech processing method, and speech processing system
JP6978888B2 (en) Sensitivity adjustment device, in-vehicle system, car headrest and signal processing device
JP2686390B2 (en) In-vehicle audio system
KR20090046326A (en) Automatic control system and method for speaker volume by environment noise
JP2005086284A (en) Output sound correction apparatus
JP2001024459A (en) Audio device
JP2005223445A (en) Volume controller
JP3267866B2 (en) Noise sensitive volume
JP3292098B2 (en) Hearing aid
JP2008034928A (en) Sound input/output device and program

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22927004

Country of ref document: EP

Kind code of ref document: A1