WO2006112210A1

WO2006112210A1 - Voice output device, voice output method, voice output program, and recording medium

Info

Publication number: WO2006112210A1
Application number: PCT/JP2006/304760
Authority: WO
Inventors: Mitsuo Yasushi; Masatoshi Yanagidaira; Fumio Isozaki
Original assignee: Pioneer Corporation
Priority date: 2005-03-31
Filing date: 2006-03-10
Publication date: 2006-10-26

Abstract

In a voice output device (200), an acquisition unit (302) acquires the point information of a current point and a guide point. Next, a detection unit (301) detects the moving velocity of a vehicle. A calculation unit (303) calculates the distance between the current point and the guide point, and calculates the time of arrival at the guide point from the calculated distance. It is then decided whether or not the calculated arrival time has reached a set time. In case the arrival time has reached the set time, a guide sound generation unit (304) generates a guide sound. A control unit (305) locates the guide sound at a compartment position according to the arrival time. A voice output unit (306) outputs the guide sound made stereophonic.

Description

Specification

Audio output device, audio output method, audio output program, and recording medium

The present invention relates to a sound output device that outputs sound, a sound output method, a sound output program, and a recording medium. However, the use of the present invention is not limited to the audio output device, the audio output method, the audio output program, and the recording medium.

Background art

[0002] In a conventional audio output device, the CPU of an arithmetic processing unit is based on various data from input devices, storage devices, and current position detection devices, and various programs and data stored in ROM and RAM. Determine and determine the course direction. The CPU supplies a control signal according to the determination result to the control amplifier to adjust the left / right balance in the control amplifier. The CPU sends the determination result as an instruction signal to the speech synthesizer connected thereto, and the speech synthesizer synthesizes the instruction voice based on the instruction voice and supplies it to the control amplifier. As a result, the instruction sound is output from the left and right speakers so that the instruction direction is the same as the direction in which the instruction sound is heard (see, for example, Patent Document 1 below).

[0003] Further, in the conventional guidance device, calculation is performed based on the destination input to the input device, the coordinate position of the vehicle detected by the absolute position detection device, intersection data and road data of the storage device, and the like. The processing device searches for a travel route to the destination, and finds the corner of the intersection where the vehicle should change the course and the relative position of the destination with respect to the vehicle. The sound output device outputs two outgoing sounds from the speaker according to the intersection turn and the relative position of the destination obtained by this processing unit so that the sound image can be heard from the turn turn and the destination location, respectively. (For example, see Patent Document 2 below.)

Patent Document 1: Japanese Patent Laid-Open No. 6-176296

Patent Document 2: JP-A-7-083674

Disclosure of the invention

Problems to be solved by the invention [0005] However, in the above-described prior art, since the sound image is localized according to the distance between the host vehicle and the guide point, even if the guide point is relatively far, depending on the traveling speed of the host vehicle. For example, the problem is that the driver cannot accurately guide the driver because the arrival time becomes faster, and the correspondence between the sound image localization position and the distance between the actual guidance point and the vehicle cannot be taken.

[0006] Further, when a plurality of guidance sounds are overlapped in the vehicle, an example is a problem that it is difficult for the driver to recognize which guidance sound is urgently alarmed. An example is the problem that the guidance sound is heard by passengers in the front passenger seat and the rear seat, which is noisy and troublesome.

[0007] In car navigation, even if a speed limit is displayed on the display screen, it is difficult to visually confirm the display screen during high-speed driving. One example is the problem of increased likelihood of oversight. An example of such a problem is that if such a display screen is viewed while driving, the display screen is taken care of and the driving is hindered.

Means for solving the problem

[0008] The audio output device according to the invention of claim 1 includes an acquisition unit that acquires information about a current location and a guidance location of a mobile body, and information about the current location and the guidance location that is acquired by the acquisition unit. Based on the distance calculation means for calculating the distance between the current location and the guide location based on the distance calculated by the distance calculation means and the moving speed of the moving body, The arrival time calculation means for calculating the time, the sound output means for outputting the sound, and the sound output means are controlled so that the driver can hear from the position corresponding to the arrival time calculated by the arrival time calculation means. Thus, it is characterized by comprising control means for outputting a guide sound relating to the guide point.

[0009] Further, the voice output device according to the invention of claim 5 controls the acquisition means for acquiring the guidance information for the driver of the moving body, the voice output means for outputting the voice, and the voice output means. Control means for outputting a guidance sound related to the guidance information so that the driver can hear from the position according to the importance of the guidance information obtained by the obtaining means. It is characterized by providing.

[0010] Further, the audio output device according to the invention of claim 7 includes an acquisition unit that acquires a speed limit of a road on which the moving body is moving, a speed limit acquired by the acquisition unit, and the moving body. Based on the current moving speed, the calculating means for calculating the current excess moving speed of the moving body, the sound outputting means for outputting sound, and the sound outputting means are controlled and calculated by the calculating means. Control means for outputting a guide sound relating to the excess movement speed so that the driver can hear from a position corresponding to the excess movement speed.

[0011] The voice output method according to the invention of claim 10 is based on an acquisition step of acquiring information on a current location and a guidance location of a mobile object, and information on the current location and the guidance location acquired by the acquisition step. Based on the distance calculation step for calculating the distance between the current point and the guide point, the distance calculated by the distance calculation step, and the moving speed of the moving body, the guide point and the guide point are calculated. An arrival time calculation step for calculating the arrival time of the moving object moving between the points, and guidance for the guidance point so that the user can hear from the position corresponding to the arrival time calculated by the arrival time calculation step. And an audio output step for outputting sound.

[0012] In addition, the voice output method according to the invention of claim 11 is characterized in that an acquisition step of acquiring guidance information for a driver of a moving body and a position force corresponding to the importance of the guidance information acquired by the acquisition step can be heard. As described above, a voice output step for outputting a guide sound related to the guide information is included.

[0013] The voice output method according to the invention of claim 12 includes an acquisition step of acquiring a speed limit of a road on which a moving body is moving, a speed limit acquired by the acquisition step, and the moving body. Based on the current moving speed, the calculation step of calculating the current excess moving speed of the moving body, and the driver can hear from the position corresponding to the excess moving speed calculated by the calculating step. A voice output step of outputting a guidance sound relating to the excess moving speed.

[0014] In addition, an audio output program according to the invention of claim 13 causes a computer to execute the audio output method according to any one of claims 10 to 12. [0015] Further, a recording medium according to the invention of claim 14 is readable by a computer on which the sound output program according to claim 13 is recorded.

Brief Description of Drawings

FIG. 1 is a plan view showing an interior space of a vehicle that is effective in an embodiment of the present invention.

[FIG. 2] FIG. 2 is a block diagram showing a hardware configuration of an audio output device that is effective in the embodiment of the present invention.

FIG. 3 is a block diagram showing a functional configuration of an audio output device that works according to an embodiment of the present invention.

FIG. 4 is a flowchart of an audio output processing procedure according to the first embodiment.

FIG. 5 is a flowchart of an audio output processing procedure according to the second embodiment.

FIG. 6 is a flowchart of an audio output processing procedure according to the third embodiment. Explanation of symbols

[0017] 100 vehicles

110 Interior space

200 audio output device

209 (101L, 101R, 102L, 102R) Speaker

301 detector

302 Acquisition Department

303 calculator

304 Guide sound generator

305 Control unit

306 Audio output section

A ~ C Car interior position

H driver

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of an audio output device, an audio output method, an audio output program, and a recording medium according to the present invention will be described in detail with reference to the accompanying drawings. First, as an example of a moving body space of a moving body that works according to an embodiment of the present invention, the interior of a vehicle The space will be described.

FIG. 1 is a plan view showing a vehicle interior space of a vehicle 100 that is relevant to the embodiment of the present invention. In FIG. 1, the vehicle 100 includes left and right speakers 101L and 101R that output middle and high-pitched sound, and left and right rear speakers 102L and 102R that are disposed rearward in the vehicle interior space 110. In FIG. 1, points A to C show an example of an in-vehicle space position (also referred to as a sound image localization position) where the guide sound is localized in the present embodiment and each example described later. Among the interior space positions A to C, A is the position farthest from the driver H, and C is the position closest to the driver H.

[0020] (Hardware configuration of audio output device)

Next, a hardware configuration of an audio output device that focuses on the embodiment of the present invention will be described. FIG. 2 is a block diagram showing a hardware configuration of an audio output device that is particularly useful for an embodiment of the present invention.

[0021] As shown in FIG. 2, the audio output device 200 includes a CPU 201, a ROM 202, a RAM 203, an HDD (hard disk drive) 204, an HD (node disk) 205, and a CD / DVD drive 206. CD / DVD 207 as an example of possible recording media, audio I / F 208, speaker power 209 (101L, 101R, 102L, 102R), microphone 210, communication I / F 211, GPS Reino 212, Human power I / F 213, sensor group 214, human power key 215, remote controller 216, video I / F 217, and display (or touch panel) 218 are configured.

Here, the CPU 201 controls the entire audio output device 200. The ROM 202 stores programs such as a boot program. The RAM 203 is used as a work area for the CPU 201. The HDD 204 controls data read / write to the HD 205 according to the control of the CPU 201. The HD 205 stores data written under the control of the HDD 204.

The CD / DVD drive 206 controls reading / writing of data with respect to the CD / DVD 207 according to the control of the CPU 201. The CDZDVD 207 is a detachable recording medium from which data recorded under the control of the CDZDVD drive 206 is read. In addition, a writable recording medium can be used as the CD / DVD 207. The removable recording media include the power of CDZDVD207, CD-ROM (CD_R, CD-RW), MO, memory card, etc.

[0024] The audio I / F 208 is connected to the speaker 209 (that is, 101L, 101R, 102L, 102R shown in FIG. 1) shown in FIG. Specifically, the audio I / F 208 includes, for example, a D / A converter that performs D / A conversion of audio digital data, an amplifier that amplifies an audio analog signal output from the D / A converter, and an audio analog It is configured with an AZD converter that performs AZD conversion of data. Microphone 210 inputs external audio.

[0025] Further, the communication IZF 211 transmits and receives communication data and broadcast waves. The GPS receiver 2 12 receives radio waves from GPS satellites and obtains a geometric position with respect to the GPS satellites, and can be measured anywhere on the earth. It receives radio waves from this GPS satellite, outputs GPS positioning data, and outputs absolute direction data of the direction of travel of the vehicle.

[0026] The input IZF 213 includes a sensor group 214, an input key 215 for inputting characters, numerical values, and various instructions, a remote controller 216 having a part or all of the input key 215, and a display 218 functioning as a touch panel. Enter the data. Although not shown, an output I / F is provided as necessary, and a scanner that optically reads characters and images via this output I / F or a printer that prints characters and images must be connected. Can do.

[0027] The video I / F 217 is connected to a video display 218. Specifically, the video I / F 217 includes, for example, a graphic controller that controls the entire display 218, a buffer memory such as a VRAM (Video RAM) that temporarily stores image information that can be displayed immediately, and a graphic controller. It is configured by a control IC that controls display of the display 218 based on image data output from the display.

The display 218 displays icons, cursors, menus, windows, or various data such as characters and images. As this display 218, for example, a CRT, TFT liquid crystal display, plasma display or the like can be adopted. Also, when it functions as a touch panel, it is connected to the input I / F 213, detects that the touch panel is not pressed Z, and inputs data to the input IZF 213. Each component is connected by a bus 219.

[0029] Next, the sensor group 214 will be described. Sensor group 214 includes movement speed sensor 221 and The angular velocity sensor 222, the travel distance sensor 223, the tilt sensor 224, the biological sensor, the corner sensor 226, and the seat sensor 227 are also configured.

[0030] The moving speed sensor 221 detects the moving speed of the apparatus main body. When the equipment body is a vehicle 100, it is detected from the transmission output shaft. The angular velocity sensor 222 detects the angular velocity when the host vehicle is rotating, and outputs angular velocity data and relative azimuth data. The mileage sensor 223 calculates the number of pulses per one wheel rotation by counting the number of pulses of a pulse signal with a predetermined period output as the wheel rotates, and travels based on the number of pulses per one rotation. Output distance data. The inclination sensor 224 detects the inclination angle of the road surface and outputs inclination angle data.

[0031] The biometric sensor 225 detects the biometric information of the driver H such as the driver H falling asleep, feeling frustrated, and fingerprints. The corner sensor 226 detects an object or an obstacle approaching the own vehicle by ultrasonic waves. The seat sensor 227 detects the seating of the driver H or a passenger on the seat.

[0032] (Functional configuration of audio output device 200)

Next, the functional configuration of the audio output device 200 that is relevant to the embodiment of the present invention will be described. FIG. 3 is a block diagram showing a functional configuration of the audio output device 200 according to the embodiment of the present invention. In FIG. 3, the audio output device 200 includes a detection unit 301, an acquisition unit 302, a calculation unit 303, a guide sound generation unit 304, a control unit 305, and an audio output unit 306.

First, the detection unit 301 detects various information related to the vehicle 100 and the driver H. Specifically, the detection unit 301 can be realized by, for example, the sensor group 214 shown in FIG. The acquisition unit 302 acquires point information related to the current point and the guide point of the vehicle 100. The location information can be obtained from the map data recorded on HD205 and CD / DVD207 shown in Fig. 2, GPS — / 212, communication I / F211 force, and so on.

In addition, the acquisition unit 302 acquires guidance information for the driver H of the vehicle 100. Guidance information includes point information on destinations and waypoints set in advance (for example, a ramen shop set with a lantern designation) and specific events received from communication IZF211 (for example, baseball broadcasts) For example, when a home run comes out in broadcasting).

[0035] In addition, the acquisition unit 302 acquires the speed limit of the road on which the vehicle 100 is moving. Restriction The speed can be acquired from the map data recorded on the HD 205 and CD / DVD 207 shown in FIG. 2, the GP S receiver 212, and the communication I / F 211.

[0036] The calculation unit 303 calculates information related to the behavior of the vehicle 100 such as distance, time, and speed. Specifically, for example, the current location and the guidance location based on the location information on the current location and the guidance location (for example, the destination point of the route, facilities on or near the route, intersections, etc.) acquired by the acquisition unit 302. The distance between is calculated. Also, the arrival time to the guide point is calculated by multiplying the calculated distance by the moving speed of the vehicle 100 detected by the detection unit 301.

[0037] In addition, the calculation unit 303 obtains the difference between the speed limit acquired by the acquisition unit 302 and the moving speed of the vehicle 100 detected by the detection unit 301, so that the current excess of the vehicle 100 is detected. Calculate the moving speed. Specifically, for example, the calculation unit 303 performs its function when the CPU 201 executes a program recorded on a recording medium such as ROM 202, RAM 203, HD 205, CD / DVD 207 shown in FIG. Realize.

In addition, the guide sound generation unit 304 generates a guide sound to be output from the voice output unit 306.

Specifically, for example, the guide sound generation unit 304 generates a guide sound according to information from the detection unit 301, the acquisition unit 302, and the calculation unit 303 by software. Guidance sounds include various warning sounds and sound effects, e-mail ringtones, voices indicating the characteristics of the guidance point (for example, the sound of a charmer when the guidance point is a ramen shop), and arrival at the guidance point ( Expected) Reading voice of time (for example, “You will reach 〇 in 5 minutes.”), Reading voice of distance to the guide point (for example, “Turn left 300m ahead”), exceeded Voice of reading speed (for example, “20 km (meaning“ 20 km / h ”) is over”).

[0039] Specifically, the guide sound generation unit 304 is composed of, for example, a sound source IC, and more specifically, the ROM 202, RAM 203, HD 205, CD / CD shown in FIG. The CPU 201 executes a program recorded on a recording medium such as a DVD 207, thereby realizing its function.

The voice output unit 306 outputs the guidance sound generated by the guidance sound generation unit 304. The audio output unit 306 realizes its function by the audio I / F 208 and the speaker 209 shown in FIG. In addition, the control unit 305 controls the audio output unit 306 so that the acquisition unit 302 Thus, a guidance sound is output so that the driver H can hear from the position corresponding to the acquired information, the calculation result calculated by the calculation unit 303, or the detection result detected by the detection unit 301.

Specifically, by controlling the delay amount, the phase, the frequency characteristics, the addition of reverberation sound, and the volume difference of each speaker 209, the guide sound is turned into a three-dimensional sound at a desired position in the vehicle interior 110, and the guide sound Set the vehicle interior space position (sound image localization). For example, for the voice reading out the distance to the guidance point, if the moving speed of the vehicle 100 is Sa [km / h], the guidance sound (for example, “turn left 800m”) will appear in the vehicle interior space position A. , And a guide sound (for example, “turn left 300m ahead”) to the interior space position B, and a guide sound (for example, “turn left immediately”) to the interior space position C. I'll pan.

[0042] Also, when the moving speed of the vehicle 100 is Sb [km / h] (Sb Ku Sa), a guide sound (for example, “turn left 100m”) is localized at the vehicle interior space position A. Position the guidance sound (for example, “Turn left 30m ahead”) in the vehicle interior space position B, and localize the guidance sound (for example, “Turn left immediately”) in the interior space position C. . As a result, the voice output unit 306 outputs this three-dimensional guidance sound, and the driver H seems to have heard the guidance sound from the interior space positions A to C where the force is also the sound image localization position. It will be heard.

Specifically, for example, the control unit 305 causes the CPU 201 to execute a program recorded on a recording medium such as ROM202, RAM203, HD205, and CD / DVD207 shown in FIG. By realizing the function. In the above-described embodiment, the vehicle 100 has been described as an example of the moving body. However, the moving body is not limited to the vehicle 100, and may be a portable terminal such as a ship, an aircraft, a mobile phone, or a PDA.

Example 1

[0044] Next, Example 1 of the audio output device 200 that works on the above-described embodiment will be described. The first embodiment is a voice output process of a guide sound using an arrival time from the current point of the vehicle 100 as a moving body to the guide point. FIG. 4 is a flowchart of the sound output processing procedure according to the first embodiment. In FIG. 4, first, the acquisition unit 302 acquires the location information of the current location and the guidance location (step S401). Next, the moving speed of the vehicle 100 is detected by the detecting unit 301 (step S402). Then, the calculation unit 303 The distance between the current location and the guidance location is calculated (step S403), and the calculated distance force also calculates the arrival time to the guidance location (step S404).

Next, it is determined whether or not the calculated arrival time has reached the set time (step S405). The set time is, for example, a multi-stage time such as 10 seconds, 1 minute, 3 minutes, ... If it is determined in step S405 that it is not the set time (step S405: No), the process proceeds to step S401. Thereby, step S401 to step S404 are executed again, and the arrival time to the guidance point is calculated again.

On the other hand, when the arrival time reaches the set time (step S405: Yes), a guide sound is generated by the guide sound generation unit 304 (step S406). Here, the generated guidance sound is a guidance sound related to the arrival time. Then, the control unit 305 localizes the guide sound at the vehicle interior space position according to the arrival time (step S407). That is, the guide sound is converted into a three-dimensional sound at a desired position in the vehicle interior 110 by controlling the delay amount, phase, frequency characteristics, reverberation sound addition, and volume difference between the speakers 209.

[0047] Then, the three-dimensional guidance sound is output from the voice output unit 306 (speaker 209).

As a result, when the moving speed of the vehicle 100 is Sa [km / h] and the distance to the guidance point is 800 m, the guidance sound (for example, “turn left 800m ahead”) ]) Power You will hear the driver H as if it was pronounced from spatial position A.

[0048] When the distance to the guide point approaches from 800m to 300m, the guide sound (for example, "turns 300m ahead left") force S, as if the new force was also pronounced from spatial position B, It will be heard by driver H. Furthermore, when the distance to the guidance point approaches from 300m to 50m, the guidance sound (for example, “turning to the left soon”) force will be heard as if it was pronounced from the position C in the car.

[0049] Similarly, even in the case of Sb [kmZh] (Sb <Sa) where the moving speed of the vehicle 100 is lower than Sa [km / h], if the distance to the guidance point is 100 m, the distance to the guidance point will be Readout voice guidance sound (for example, “turn to the left 100m”) force The driver's H will be heard as if the force is also in the car's space position A force.

[0050] When the distance to the guide point approaches from 100m to 30m, a guide sound (for example, “30 m Turn left. ]) Force The driver H can hear the force as if it was pronounced from the space position B in the car. Furthermore, when the distance to the guide point approaches from 30m to 10m, the guide sound (for example, “I will turn to the left soon.”) The force will be heard as if it was pronounced from the space position C in the car. .

[0051] Thus, according to the first embodiment, regardless of the distance to the guide point, the vehicle interior space position (A to C) according to the current point force of the vehicle 100 and the arrival time to the guide point is obtained. The guide sound can be localized, and the driver H can intuitively recognize the position of the guide point without interfering with driving.

Example 2

[0052] Next, Example 2 of the audio output device 200 that works on the above-described embodiment will be described. The second embodiment is a voice output process for localizing a guide sound at a space position in the vehicle according to the importance of the guide information when any guide information is acquired. For this specific situation, for example, if you are looking for a restaurant as guidance information during a drive, especially if you want to eat ramen, the location information of the ramen store should be given a high importance, Chinese restaurant. The point information for the restaurant is set to “Middle” for importance, and the point information for other restaurants is set to “Low” for importance.

FIG. 5 is a flowchart of the sound output processing procedure according to the second embodiment. In FIG. 5, first, the acquisition unit 302 acquires guide information (location information of the ramen restaurant, Chinese restaurant, and other restaurants described above) (step S501). Specifically, it is acquired when the guide information (location information of the ramen restaurant, Chinese restaurant, or other restaurant mentioned above) exists within a predetermined distance from the current position of the vehicle 100.

[0054] Then, the guide sound generation unit 304 generates a guide sound according to the guide information (step S502). For example, it can be a sound of a charmer for a ramen restaurant, a humorous sound for a Chinese restaurant, or a mere alarm sound for other restaurants. Next, the control unit 305 localizes the guide sound at a position in the vehicle space corresponding to the importance of the guide information (step S503). That is, for the guide sound, by controlling the delay amount, the phase, the frequency characteristics, the addition of reverberation sound, and the volume difference between the respective spin forces 209, the guide sound is made into a solid sound at a desired position in the vehicle interior 110. [0055] Then, the three-dimensional sound guide sound is output from the sound output unit 306 (speaker 209) (step S504). As a result, for example, the ramen shop has a high degree of importance, so that the guidance sound of Charmera can be heard as if the power was also pronounced from the interior space position C closest to the driver H. In addition, since the importance of the Chinese restaurant is “medium”, you can hear the guidance sound of a humor as if your power was also pronounced from the space position B in the car.

[0056] Further, since the importance of the other restaurants is "low", the notification sound can be heard as if the force A in-vehicle space position A force was also pronounced. As described above, according to the second embodiment, the guidance information that the driver H wants to see during driving can be recognized without moving the line of sight by sound image localization, and safe driving can be performed. Even when there is no spot to aim for in a long section, it is not necessary to perform a search operation using the navigation device.

[0057] It should be noted that in the above description of the second embodiment, the restaurant information is given as an example of the guidance information. When the OVIS camera is approached as the guidance information, there is a guidance sound of "power shirt" and the gasoline remaining amount. When it becomes less than the fixed amount, a guide sound “gobogobo”, or when a sharp curve approaches, a simulated downshift sound may be output as a guide sound. In addition, importance can be set for these guidance information, and the guidance sound can be localized at the space position in the vehicle according to the importance.

Example 3

Next, Example 3 of the audio output device 200 that works on the above-described embodiment will be described. The third embodiment is a voice output process related to an alarm sound when the speed limit of a moving road is exceeded. FIG. 6 is a flowchart of the sound output processing procedure according to the third embodiment.

[0059] In FIG. 6, first, the speed limit of the moving road is acquired by the acquisition unit 302 (step S601). Specifically, for example, the speed limit of the currently moving road is extracted from the map data of the recording medium such as HD205 and CD / DVD207 shown in FIG. Further, the moving speed of the vehicle 100 is detected from the detecting unit 301 (moving speed sensor 221) (step S602), and the calculating unit 303 calculates the excess moving speed by subtracting the speed limit from the moving speed (step S602). Tape S603).

[0060] Then, it is determined whether or not the excess movement speed has reached the set speed (step S604). Multiple setting speeds are set in stages, such as 10km / h, 20km / h, 30km / h, and so on. Therefore, when the excess moving speed is not the set speed (step S60 4: No), the process proceeds to step S601 and the processes up to step S604 are executed again. As a result, the excess movement speed can be monitored constantly.

On the other hand, when any of the set speeds is reached (step S604: Yes), the guide sound generating unit 304 generates a guide sound corresponding to the excess moving speed (step S605). This guidance sound can be generated as a sound that feels safe or a sound that feels dangerous depending on the excess moving speed. Then, the control unit 305 localizes the guide sound at the vehicle interior space position corresponding to the excess movement speed (step S606). That is, the guide sound is converted into a three-dimensional sound at a desired position in the vehicle interior 110 by controlling the delay amount, phase, frequency characteristics, reverberation sound addition, and volume difference between the speakers 209.

[0062] Then, the three-dimensional guidance sound is output from the voice output unit 306 (speaker 209) (step S607). As a result, for example, if the excess travel speed is 30 km / h, “30 km (meaning“ 30 km / h ”) is over. It will sound as if it was pronounced from the position C in the car closest to the driver H.

[0063] Also, if the excess movement speed is 20 km / h, it means “20 km (20 km / h”) over. The sound of the guide sound is also heard as if it were pronounced from the position B in the car. Furthermore, if the overtravel speed is 10 km / h, it is “10 km (meaning“ 10 km / h ”). It will sound as if the power of the guidance sound was pronounced.

[0064] Since the sound image can be dynamically changed from “far” to “close” according to the excess moving speed in this way, the driver H can display the speed meter and the navigation screen. It is possible to recognize the excess moving speed without visually recognizing the surface, that is, without moving the line of sight, and perform safe driving. In addition, speeding can be suppressed.

[0065] Each of Examples 1 to 3 described above, or these Examples 1 to 3 are combined. By combining these, output control of a plurality of guide sounds can be executed. That is, by separating each guide sound at a different position in the vehicle interior space 110 and localizing it, the user can be recognized simultaneously. As a result, information on various events and emergencies surrounding Driver H can be transmitted simultaneously and frequently. In addition, the operator H can grasp a lot of information as if he / she is instantly zapping, and can take necessary actions in the shortest time considering the priority.

[0066] Also, the first to third embodiments can be applied to data broadcasting. For example, if you are driving and there is no actual situation such as baseball, you will not know the progress of the game at all, and will be frustrated, willing to go home early, and will tend to violate speed. Even in such a case, if there is no live broadcast such as baseball (radio or TV broadcast) that the driver H wants to listen to, he / she listens to other sources such as music and even guides the game progress. It can also be used for breaking news.

[0067] Specifically, the user wants to be automatically notified in advance such as baseball for digital radio data broadcasting, and specifies the content. Next, while listening to other sources (CD playback, FM broadcast, etc.), the digital radio should be set to receive data broadcasts at the knock ground at all times. Interrupt the source you are currently listening to and output a guidance sound about breaking news.

[0068] For example, when a hit, a score, or a home run comes out, it is possible to notify each specific notification sound by moving the guidance sound (for example, “Kahn” sound) three-dimensionally from the rear to the front in the passenger compartment. S can. In addition, the driver H can be informed by changing the guidance sound for each team or changing the direction of localization for each team.

[0069] As a result, the progress of the game can be grasped on the basis of breaking news even if the live broadcast is not performed, so that driver H can be relieved and safe driving can be promoted. In addition, it is possible to notify breaking news by data broadcasting without performing complicated operations such as pressing the “Re”, “Chi” or “Data Broadcast” buttons.

[0070] Also, when trying to turn right on a large road, until now, driver H is the vehicle 100 coming from the front of the opposite lane. It is difficult to check all pedestrians / bicycles crossing the right pedestrian crossing at the same time. [0071] Therefore, if the corner sensor 226 detects an object (automobile, motorcycle, bicycle, pedestrian, wall, etc.) that approaches the vehicle at a dangerous acceleration, and captures the approaching object At the same time, the driver H can be notified. As a result, it is possible to notify the driver H at an appropriate timing without moving the line of sight, sounding from an appropriate direction, and an appropriate guidance sound.

[0072] Accordingly, the driver H is notified of the approaching object that was overlooked when turning right or the like at an appropriate timing, so that a traffic accident can be prevented in advance. In addition, in the case of a highway, it is possible to detect a rear vehicle that is approaching rapidly at a tremendous speed, so there is a risk that the vehicle will come out of the overtaking lane at a dangerous timing, and the vehicle will be violently collided. It is also possible to prevent dangers by crashing into a vehicle 100 that is decelerating rapidly.

Note that the audio output method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, or a DVD, and is executed by being read from the recording medium by a computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

Claims

The scope of the claims

[1] An acquisition means for acquiring information related to the current location and guide location of the mobile object,

Based on the information about the current location and the guidance location acquired by the acquisition means, a distance calculation device that calculates the distance between the current location and the guidance location, the distance calculated by the distance calculation device, An arrival time calculating means for calculating an arrival time to the guide point based on the moving speed of the moving body;

Audio output means for outputting audio;

Control means for controlling the voice output means to output a guidance sound relating to the guidance point so that the driver can hear from a position corresponding to the arrival time calculated by the arrival time calculation means;

An audio output device comprising:

[2] The arrival time calculating means includes:

A new arrival time (hereinafter referred to as “second arrival time”) after the guidance sound is output according to the arrival time (hereinafter referred to as “first arrival time”). And the control means

When the second arrival time is shorter than the first arrival time, a guidance sound related to the guidance point is heard so that the second arrival time can be heard from a position closer to the driver than the position corresponding to the first arrival time. The audio output device according to claim 1, wherein the audio output device outputs the audio.

[3] The arrival time calculation means includes:

When the second arrival time is longer than the first arrival time, a guidance sound relating to the guidance point is heard so that the second arrival time can be heard from a position farther from the driver than the position corresponding to the first arrival time. The audio output device according to claim 1, wherein the audio output device outputs the audio.

[4] The control means includes

The guidance sound related to the guide point is output based on the information related to the direction of the guide point so that the sound can be heard from the direction. Audio output device.

[5] An acquisition means for acquiring guidance information for the driver of the moving body;

Audio output means for outputting audio;

Control means for controlling the voice output means to output a guidance sound related to the guidance information so that the driver can hear from a position corresponding to the importance of the guidance information acquired by the acquisition means;

An audio output device comprising:

[6] The control means includes

6. The audio output device according to claim 5, wherein the guidance sound is output so that the position force closer to the driver can be heard as the importance increases.

[7] An acquisition means for acquiring the speed limit of the road on which the moving object is moving,

Based on the speed limit acquired by the acquisition means and the moving speed of the moving body, a calculating means for calculating a current excess moving speed of the moving body;

Audio output means for outputting audio;

Control means for controlling the voice output means to output a guidance sound relating to the excess movement speed so that the driver can hear from a position corresponding to the excess movement speed calculated by the calculation means;

An audio output device comprising:

[8] The calculation means includes:

A new excess travel speed (hereinafter referred to as “second excess travel speed”) after the guidance sound is output by the excess travel speed (hereinafter referred to as “first excess travel speed”) to the guidance point. To calculate

The control means includes

When the second excess movement speed is higher than the first excess movement speed, the guidance regarding the in-house point is heard so that it can be heard from a position closer to the driver than the position corresponding to the first excess movement speed. The sound output device according to claim 7, wherein the sound output device outputs sound.

[9] The calculation means includes: A new excess travel speed (hereinafter referred to as “second excess travel speed”) after the guidance sound is output by the excess travel speed (hereinafter referred to as “first excess travel speed”) to the guidance point. To calculate

The control means includes

When the second excess movement speed is lower than the first excess movement speed, the position of the guidance point is such that it can be heard from a position farther from the driver than a position corresponding to the first excess movement speed. 8. The audio output device according to claim 7, wherein a guide sound is output.

[10] An acquisition process for acquiring information about the current location and guidance location of the mobile object;

A distance calculating step of calculating a distance between the current point and the guide point based on information on the current point and the guide point acquired by the acquiring step; the distance calculated by the distance calculating step; An arrival time calculating step of calculating an arrival time of the moving object that moves between the guide point and the guide point based on a moving speed of the moving object;

A voice output step for outputting a guide sound related to the guide point so that the position force corresponding to the arrival time calculated by the arrival time calculation step can be heard;

An audio output method comprising:

[11] An acquisition step of acquiring guidance information for the driver of the moving body;

A voice output step of outputting a guide sound related to the guide information so that the user can hear from a position corresponding to the importance of the guide information acquired by the acquisition step;

An audio output method comprising:

[12] An acquisition step of acquiring a speed limit of the road on which the moving object is moving;

Based on the speed limit acquired by the acquisition step and the moving speed of the moving body, a calculating step for calculating a current excess moving speed of the moving body;

A voice output step of outputting a guidance sound relating to the excess movement speed so that the driver can hear from a position corresponding to the excess movement speed calculated by the calculation step;

An audio output method comprising:

[13] Claims 10 to: A computer executes the audio output method according to any one of claims 12 to 12. An audio output program characterized by that.

A computer-readable recording medium on which the audio output program according to claim 13 is recorded.