JP2012098100A - Audio control device for outputting guide route voice guidance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an audio control device for outputting a guide route voice guidance, by which when outputting navigation voice guidance during the output of sound other than navigation in an audio apparatus with a navigation function, an audio output outputted at present is immediately stopped without performing processing for gradually reducing a sound volume if the audio output is reading, talking or explanation or learning sound or the like to prevent generation of inaudible portions in the navigation.SOLUTION: When guide route voice guidance for navigation is inputted during an audio output, an audio item being reproduced at present, if the audio item is a preset specific genre such as reading, talking or explanation or learning sound or the like, is immediately stopped without gradually reducing the sound volume, and when the voice guidance is stopped, the stopped audio item is returned to a normal sound output without gradually increasing the sound volume. When the audio item is a genre other than the specific genre, the sound volume is gradually reduced and then the reproduction of the audio item is stopped, and when the voice guidance is stopped, the sound volume is gradually increased.

Description

  According to the present invention, when listening to various types of audio with an audio device with a navigation function, when the guidance route voice guidance for navigation is output, the volume of the audio is gradually decreased according to the genre of the output audio. The present invention relates to a guidance route voice guidance output audio control apparatus that can control whether to pause immediately.

  In recent years, it has become widespread that navigation devices are installed in vehicles, and the guide route from the current location toward the destination set by the user is an appropriate guide route under various conditions such as general road priority and highway priority. The user can be safely and surely guided to the destination along the guide route selected by the user. In addition, portable navigation devices that perform the same function, or devices that have a navigation function in various portable devices have become widespread.

  When guiding the guidance route at this time, for example, at the intersection of turning left and right, an enlarged view of the intersection is displayed on a monitor that displays a map, and the state of the road that is about to turn right and left and the surrounding situation are displayed in an easy-to-understand manner, and voice For example, guidance such as “Turn right at the XX intersection at 600” is given.

  On the other hand, most vehicles are equipped with an audio device, and a radio receiver, an audio player such as a CD or a DVD, is built in the head unit, or can be listened to by an audio system in the vehicle by connecting a separate player. It can be done. In recent years, a head unit that is the center of an audio device has a slot into which a memory card can be inserted and removed, and can reproduce data from a memory card that records a large amount of audio data, or a similar USB memory can be connected. . Furthermore, it is often provided with connection means that can be connected to various external devices so that data communication can be performed by wire or wireless.

  Accordingly, when portable audio devices that record a large amount of audio data that have been widely spread in recent years are brought into the vehicle, they are connected to each other so that data communication can be performed by the wired or wireless connection means. It can also be captured and played back, or the output sound of the portable audio device can be input as it is, amplified by the head unit, and listened to by a speaker in the car.

  Further, the navigation device as described above is often attached to the airframe as a device different from the head unit, and often displays a map screen or the like on a monitor fixed to the vehicle. However, with the recent miniaturization of navigation devices, the head unit is also provided with a part of its functions. At that time, in the navigation function unit of the head unit, a map screen or the like is displayed on a monitor fixed to the vehicle, and voice guidance is output from the speaker by the audio output function of the head unit.

  Therefore, in the head unit, when the navigation function is operating while performing audio output such as radio receiver, CD and DVD playback, and audio output to the speaker in the car of the connected external audio device, the voice guidance is given. Will also be output. In addition, when the head unit does not have a navigation function and a separate navigation device is provided and voice guidance is to be output from a speaker in the vehicle, the voice guidance of the navigation device is also output together with the audio output as described above. Will be.

  Note that when audio for navigation is interrupted and output when audio audio is being output, if the audio audio is output by reproducing an audio recording medium such as a CD, the playback device is paused. Japanese Patent Application Laid-Open No. 2004-228688 discloses a technique in which reproduction is resumed after interruption output of navigation voice guidance is completed.

JP 2000-266558 A

  As described above, an audio device such as a head unit mounted on a vehicle reproduces audio data from an internal CD player or a portable audio device as an external device connected so as to be capable of data communication, or an external device. This head unit can amplify the sound output as it is and output it as audio from the speaker in the car, but this head unit also outputs navigation voice guidance, so that the navigation sound can be heard while listening to the audio. When the audio is high, the voice guidance of the navigation device cannot be heard.

  For this reason, in the above prior art, when outputting voice guidance for navigation, it has been proposed to pause playback of the CD player and start playback after the voice guidance is completed. If the audio is suddenly cut and a voice guidance for navigation is output instead, the user such as the driver feels uncomfortable.

  As a countermeasure, when audio guidance for navigation is performed during audio output of music or the like, the volume of the audio output is gradually reduced, and finally audio playback is stopped before outputting the audio guidance. Conceivable.

  However, although it is good when the audio of the music as described above is output, in recent years, the data of the electronic book or the reading data of the electronic book is recorded in the portable device or recorded in the memory, and the text data reading software is used. In many cases, playback and listening as audio, or reading and listening of electronic book data, is played back and listened to.

  When listening to the reading voice or reading of such an electronic book, the volume gradually disappears when the voice guidance for navigation is output, and when the voice guidance starts, the voice guidance ends and the reading or reading is continued. When is resumed, the next reading is started without being able to hear the story in the middle, so that when the important part of the story is not heard, there is a problem that the whole story is not understood.

  In particular, when the voice gradually disappears as described above, and then the audio guidance is terminated and the audio output is resumed, in order to eliminate the uncomfortable feeling at the time of switching the voice, as is done during normal audio playback. After the volume is gradually decreased, an operation for gradually increasing the volume is performed in order to eliminate the uncomfortable feeling when the audio output is resumed, and finally the normal volume is restored. If such an operation is performed, when reading or reading of an electronic book is resumed as described above, the inaudible part is doubled, and the problem may become more prominent.

  Problems caused by the inability to hear the sound when the volume is gradually reduced and the volume is gradually increased are not limited to the electronic books as described above, but are, for example, rakugo downloaded from CDs and others. The same problem arises with CDs that record stories or talks of famous people or rakugo.

  Furthermore, in recent years, various types of audio data such as general music have been fetched from websites on the Internet and stored in a memory for carrying, or being made available for portable audio devices. ing. In particular, portable audio devices whose selling point is the ease of capturing such electronic data have become widespread, and similar devices are being sold by audio device manufacturers.

  In addition to music, the audio captured at that time includes news, weather forecasts, business explanations, health problem explanations, recent scientific explanations, travel notes, shopping guidance, fortune telling, and more. Since there is a system in which the voices in the various fields as described above are automatically updated when the user designates a specific site in advance, the number of users increases. ing.

  Therefore, for example, as shown in FIG. 6, a portable audio device is connected to the head unit mounted on the vehicle, and a display similar to the display unit of the portable audio device is displayed on the display unit of the head unit or the monitor. When a device playback instruction is given, in addition to the music recorded in the portable audio device, listening to various audio outputs from speakers in the vehicle is widely performed.

  When such a variety of audio data is captured and listened to frequently by the head unit, the volume is gradually decreased at the time of the voice guidance output as described above, and the volume is gradually increased at the end of the voice guidance. Then, those voices that are being played cannot be heard halfway, and the entire contents cannot be understood. For example, when the voice is a language learning voice, a part of the ordered learning becomes inaudible, and this has a problem that the next learning is greatly affected. Such a problem is not limited to audio equipment mounted on a vehicle. For example, when a portable device with a navigation function is provided with an audio output function, the same problem occurs when a navigation voice guidance is output during audio output. Arise.

  Accordingly, the present invention provides an audio device with a navigation function that outputs a sound other than navigation, and when outputting a voice guidance for navigation, the volume of the sound other than navigation is gradually reduced so that the user feels uncomfortable by switching the sound. The main purpose is to solve the problem that an unintelligible part occurs when the voice other than the navigation is a reading, a talk, or a voice for explanation or learning.

  In order to solve the above problems, the guidance route voice guidance output audio control device according to the present invention detects the start of the guidance route voice guidance for navigation and the audio output means capable of outputting the guidance route voice guidance for audio and navigation at the same time. An audio output that gives an instruction to the output of the currently playing audio when the guidance route voice guidance start detection means detects that the guidance route voice guidance start detection means starts the navigation guidance voice guidance. And an audio reproduction genre detection unit that detects an audio genre currently being reproduced and output when the guidance route audio guidance start detection unit detects the start of navigation audio guidance. In the output instruction means, the reproduction audio genre detection means performs the current reproduction. When it is detected that the output audio is in a specific genre set in advance, an instruction to pause the playback of the output audio is issued, and the genre is other than the predetermined specific genre. When detected, the volume of the output audio is gradually reduced, and then an instruction to stop playback is given.

  In another guidance route voice guidance output audio control device according to the present invention, the preset specific genre is stored in the audio reproduction pause specific genre data storage means in the guidance route voice guidance output audio control device. The audio output instruction means detects that the audio genre detected by the playback audio genre detection means is a genre stored in the audio playback pause specific genre data storage means. In this case, an instruction to pause playback of the output audio is given.

  Further, another guidance route voice guidance output audio control device according to the present invention comprises guidance route voice guidance end detection means for detecting that the guidance route voice guidance is finished in the guidance route voice guidance output audio control device, When the guidance route voice guidance end detection means detects that the guidance route voice guidance has been stopped, the audio output instruction means gives an instruction to stop playback after gradually decreasing the volume of the audio first. In addition, after the volume of the audio is gradually increased, an instruction to output normal audio is given.

  Further, another guidance route voice guidance output audio control device according to the present invention comprises guidance route voice guidance end detection means for detecting that the guidance route voice guidance is finished in the guidance route voice guidance output audio control device, When it is detected by the guidance route voice guidance end detection means that the voice guidance on the guidance route has been stopped, when the audio output instruction means gives an instruction to pause audio playback first, the audio volume is gradually increased. It is characterized in that an instruction for normal audio output is given without increasing.

  Another guidance route voice guidance output audio control device according to the present invention is characterized in that in the guidance route voice guidance output audio control device, the audio output means is a head unit mounted on a vehicle.

  Since the present invention is configured as described above, when an audio device with a navigation function is outputting audio other than navigation, when outputting voice guidance for navigation, the volume of audio other than navigation is gradually decreased. When trying to eliminate the sense of incongruity due to switching of voices, if the voice other than the navigation is read or talk, or voice for explanation or learning, the genre of those voice data is detected and determined in advance. When a specific genre is detected, the reproduction is immediately stopped and the voice guidance is performed without gradually decreasing the volume, so that an unintelligible portion can be prevented from occurring.

It is a functional block diagram of the Example of this invention. It is an operation | movement flowchart of the Example. It is a figure which shows the audio data example accumulate | stored in the audio equipment. It is a figure which shows the example of a display of an audio play. It is a figure which shows the example of the genre in compression audio | voice, and a fine genre. It is a figure which shows an example when a portable audio equipment is connected to the head unit.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of an embodiment of the present invention, and shows a functional block diagram in which the present invention can be implemented in various modes. In addition, in the same figure, the function part which performs each function can be said to be a means which performs each function.

  In the example shown in FIG. 1, for example, an external device shown as the portable audio device 2 is connected to the vehicle-mounted audio device 1 such as a head unit by the external device connection unit 16, and the device shown in FIG. An example similar to the configuration is shown. In the present invention, compressed audio data such as mp3, which has been widely used in the past, and audio data including voice data such as various news, commentary, language, etc., which have been widely used in recent years, have been widely used. The example which uses the portable audio equipment 2 is shown.

  However, this vehicle-mounted audio device 1 shows an example including an interior audio device 17 provided in a vehicle-mounted audio device such as a CD player. In addition, various audio output such as a CD or DVD player separately installed in the vehicle, or a disk changer thereof, a memory card in which various data such as audio data are inserted into a memory card slot, and the like are used. There are embodiments. Therefore, in the present invention, even when the external audio device 2 is not connected as described above, the same operation is performed when the audio output devices are operated.

  In the illustrated head unit 1, various functional units are connected to the system control unit 3, and the system control unit 3 includes a ROM that records software, a CPU that performs calculation, a RAM that records temporary data, and the like. By performing the above-described processing, the respective function units operate in association with each other, and a predetermined function is performed.

  The audio output control unit 4 in the head unit 1 comprehensively controls the output from the vehicle-mounted audio device 1 to the speaker in the vehicle. Therefore, the portable audio connected to the vehicle-mounted audio device 1 as described above. The audio output from the speaker in the vehicle can be controlled by the operation of the device 2, the interior audio device 17, and the like.

  In the guidance route voice guidance start detection unit 5 in the audio output control unit 4, a guidance route guidance unit 19 shown as one of a number of functions in a navigation function unit 18 to be described later, for example, guidance of a right or left turn intersection, etc. When voice guidance is performed, a voice guidance start signal is captured, the guidance route voice guidance start is detected, and the signal is output to the audio operation detection unit 6 and the audio output instruction unit 10.

  In the audio operation detection unit 6, particularly in the reproduction audio genre detection unit 7, when the portable audio device is connected and connected so as to be able to transmit and receive data as described above, the interior audio device 17 is also operating. Sometimes, the genre of the currently reproduced audio is detected and the signal is output to the audio output instruction unit 10 described later.

  As the genre of audio detected by the reproduction audio genre detection unit 7, the genre recorded in the audio data by various types of audio does not necessarily match, but at least a part of the audio in the middle other than general music is used here. It is assumed that a genre that affects the whole is detected. As these genres, in the mp3 compressed audio data, there is a genre such as “Speech” classified into genres in ID3, and this is detected.

  Further, as genres other than general music, as described above, reading of text data of electronic books, reading by voice actors, rakugo, etc., download data for casting from a website, talk programs, news, weather There are also voice distribution data such as forecasts, business explanations, health problem explanations, recent scientific explanations, travel notes, shopping guides, fortune telling, etc. Therefore, an identification code or the like of web casting data as these genres or the entire genre may be detected.

Further, in various compressed audio genres, for example, as shown in FIG. 5, there are the following genre divisions and fine genre divisions.
[Reading]
Literature Literature.
Poetry Music including poetry readings (including melodrama).
Epic and narrative Epic and narrative.
History History.
Stories for children A combination of reading stories and classics.
Non-fiction for children History of classical music.
Anthology Anthology.
Art History of classical music.
Biography Biography.
Classical literature for children Music for children.
Classical literature Classical literature.
Religion religion.
Non-fiction Non-fiction.
Biography of a musician A collection of works that traced the life of a famous composer.
Music Education For children Children's works by famous composers are explained for each song, etc. Drama (Other) Drama reading
Drama (Shakespeare) A reading of Shakespeare's drama.
Religious scripture Religious scripture reading

  Since there are various genres recorded as audio data as described above, when the audio guidance for navigation is interrupted, for example, in the audio output of an external portable device in the present invention, the volume is reduced. Are collected in advance in the audio output pause specific genre data storage unit 8 shown in FIG. 1, and are collected in advance. The audio output instruction unit 10 can be used.

  The guidance route voice guidance end detection unit 9 detects that the voice guidance on the guidance route output by the guidance route guidance unit 19 of the navigation function unit 18 is finished, and outputs the signal to the audio output instruction unit 10.

  The audio output instructing unit 10 outputs audio from a speaker connected to the head unit, for example, as described above, and when the guidance route guide unit 19 of the navigation function unit 18 performs voice guidance, A central audio output instruction in the present invention is performed, such as instructing to gradually decrease and increase the volume, or to instruct to pause output of audio without performing such volume adjustment.

  That is, in the audio output instruction unit 10, when the navigation function unit detects that the guidance function voice guidance start detection unit 5 starts voice guidance, the audio operation detection unit 6 outputs audio from the current speaker. In particular, the reproduction audio genre detection unit 7 detects the genre of the audio that is currently reproduced and output, and the genre is accumulated in the audio reproduction pause specific genre data accumulation unit 8. It is determined whether or not the current genre is present, and an output instruction is given according to the determination result.

  As an output instruction at that time, when it is determined that the genre of the audio currently reproduced and output is not the genre accumulated in the audio reproduction pause specific genre data accumulating unit 8, the volume in the volume adjustment instruction unit 11 is determined. The gradual decrease instruction unit 12 instructs the volume gradual decrease adjustment unit 24 in the volume adjustment unit 23 of the audio output unit 22 to gradually decrease the volume.

  When it is determined that the genre of the audio that is currently played back and output is the genre stored in the audio playback pause specific genre data storage unit 8, the audio output pause instruction unit 14 displays the current audio output. An instruction to pause the playback is given to a device or the like that is operating. At this time, when the audio device currently being reproduced and output is the portable audio device 2, the portable audio device 2 is instructed to pause reproduction via the external device connection unit 16.

  In the illustrated audio output instruction unit 10, the volume adjustment instruction unit 11 includes a volume increase instruction unit 13, and when the sound guidance for navigation starts in the volume decrease instruction unit 12 as described above, the audio currently being reproduced is displayed. When a gradual decrease instruction for gradually decreasing the volume is given, and then the guidance route voice guidance end detection unit 9 detects that the guidance route voice guidance has been completed, the volume gradual increase instruction unit 13 gradually increases the volume and voices. Instructions are given so as not to give a sense of incongruity to sudden changes. At that time, the volume gradually increasing adjustment section 25 in the volume adjusting section 23 of the audio output section 22 performs a volume increasing process.

  As described above, when the audio playback pause instructing unit 14 in the audio output instructing unit 10 detects that the voice guidance output of the guidance route is started during the audio playback output, the genre of the audio currently being output is selected. When the detected genre exists in the genre stored in the audio playback pause specific genre data storage unit 8, an instruction to immediately stop without gradually decreasing the volume of the audio, Alternatively, output is performed to the audio playback function unit.

  The audio reproduction start instructing unit 15 instructs to start reproduction of the audio that has been paused when the audio guidance end detecting unit 9 of the guidance route detects that the guidance of the guidance route has ended.

  As described above, the external device connection unit 16 connects the portable audio device 2 and the like to the on-vehicle audio device 1 such as the head unit so that data communication is possible. The connection is not limited to a wired connection, and various wireless connections including Bluetooth can be performed. With this connection, data from an external audio device such as the portable audio device 2 may be received and reproduced by the vehicle-mounted audio device 1, or a reproduction signal of the external audio device may be taken in and output as audio.

  Further, when the external audio device itself is currently playing, the external audio device connection unit 16 sends the external audio device from the audio playback pause instruction unit 14 and the audio playback start instruction unit 15 as described above. When the instruction is output, the instruction signal is output to the portable audio device 2 from here.

  The interior audio device 17 is an audio device such as a CD player that is mounted inside the vehicle-mounted audio device 1 such as the head unit, and the audio reproduction output by the operation of the interior audio device 17 is also performed. The audio output instruction unit 10 performs the same operation as described above.

  In the navigation function unit 18, in the illustrated example, the vehicle-mounted audio device itself such as the head unit itself has a navigation function. However, in addition to this, a separate navigation device is provided, and this is connected so that data communication is possible at the external device connection unit 16, and the same operation is performed in the present invention by capturing the voice guidance start and end signals of the navigation device. It can be carried out.

  The navigation function unit 18 has well-known functions such as a guidance route calculation function for performing a normal navigation function. In particular, the guidance route guidance unit 19 outputs voice guidance such as a right / left turn intersection, and the like. The start and end signals are detected by the guidance route guidance start detection unit 5 and the guidance route voice guidance end detection unit 9.

  The voice output unit 20 includes a guidance route voice guidance output unit 21 that outputs voice guidance for navigation and an audio output unit 22 that outputs audio as types of voice to be output. In the audio output unit 22, the volume gradually decreasing adjustment unit 24 that performs a process of gradually decreasing the volume according to the instruction from the volume gradually decreasing instruction unit 12 in the volume adjusting instruction unit 11 and the volume according to the instruction from the volume gradually increasing instruction unit 13. A volume gradual increase adjustment unit 25 that performs a gradually increasing process;

  Note that when the volume gradually decreases by the volume gradually decreasing instruction unit 12 in the volume adjustment instruction unit 11 of the audio output unit 10 and then the volume becomes almost zero, the audio playback pause instruction unit 14 detects this. Then, the audio device that has been played is instructed to stop the temporary playback thereafter.

  The guidance route voice guidance output audio control apparatus of the present invention as shown in FIG. 1 can be implemented by, for example, the operation flow shown in FIG. In the guidance route voice guidance output audio control processing of FIG. 2, the following processing is first performed on the premise of navigation operation (step S1).

  Next, it is determined whether or not the audio is being played back (step S2). When the audio is not being played back, the process returns to step S1 and the above operation is repeated. When it is determined in step S2 that the audio is being reproduced, the navigation is activated and the audio is also being reproduced, and at that time, it is determined whether or not the guidance route voice guidance is to be started (step S3). ). This determination is performed by monitoring the signal of the guidance route guidance unit 19 of the navigation function unit 18 in the guidance route voice guidance start detection unit 5 in FIG. 1 and detecting whether or not the voice guidance is output. ing.

  When it is determined in step S3 that the voice guidance for the guidance route is not started, the process returns to step S1 and the operation is repeated. On the other hand, when it is detected in step S3 that the voice guidance for the guidance route is started, the genre of the audio being reproduced is detected (step S4).

  Next, it is determined whether or not the audio being played is a genre that is paused. In the determination, the genre of the currently reproduced audio detected by the reproduction audio genre detection unit 7 in the audio output instruction unit 10 of FIG. 1 is the genre accumulated in the audio reproduction pause specific genre data accumulation unit 8. This is done by determining whether or not it exists.

  At this time, for example, in the list of audio data examples shown in FIG. 3, when the genres as shown in Nos. 4 to 8 are accumulated in the audio reproduction pause specific genre data accumulation unit 8, the genre of the currently reproduced audio Can be detected as a genre that pauses playback when outputting voice guidance for navigation. In the example of FIG. 3, genres such as “WEB-CAST” are “Web-CAST” and “Audio Book” on the “Search for songs” screen of the portable audio player as shown in FIG. Expanded with the identification code.

  When it is determined in step S5 that the audio being reproduced is a genre that is paused, that is, when the currently reproduced audio is the genre of Nos. 4 to 8 in FIG. An instruction to pause playback is given, and the audio device or audio function unit that is currently playing back and outputting audio pauses playback according to the instruction. As a result, for example, when reading audio such as reading a book, rakugo, various explanations, news, etc., the volume gradually decreases, and there are parts that cannot be heard on the way, so the whole story and explanation content can be understood. The problem of disappearing can be solved.

  In this way, when outputting the navigation sound by pausing the currently played sound, for example, after the audio sound is paused, it takes time not to output the audio for a short time such as 3 seconds. Therefore, it is possible to set so that the voice guidance of the navigation is performed and to eliminate the uncomfortable feeling due to the sudden voice switching.

  On the other hand, when the currently reproduced audio is the genre of Nos. 1 to 3 in FIG. 3, it is determined in step S5 that the genre of the audio being reproduced is not a paused genre. At that time, if the genre being played back detected by the playback audio genre detection unit 7 in the audio output instruction unit 10 in FIG. 1 does not exist in at least the data stored in the audio playback pause specific genre data storage unit 8. The process proceeds to step S12, where the process of gradually reducing the audio volume, which is the original process, is performed, and finally the reproduction is stopped. As a result, for example, when music audio is being output, it is possible to suddenly switch to the navigation guidance voice so that the user does not feel confused and feel uncomfortable.

  After performing the processes of steps S6 and S12, the process proceeds to step S7, and guidance route voice guidance is performed. Thereafter, it is determined whether or not the guidance route voice guidance has ended (step S8). If it has not finished yet, the process returns to step S7 to wait for the voice guidance to end. On the other hand, when it is determined in step S8 that the voice guidance for the guidance route has been completed, it is determined in step S9 whether or not the reproduced audio is a genre to be paused, as in step S5.

  If it is determined in step S9 that the audio being reproduced is a genre to be paused based on the data determined in step S5, the pause of audio reproduction performed in step S6 is canceled. Start playback. As a result, clear playback is started from the playback point that was paused earlier, for example, without performing processing that gradually increases the sound to normal playback volume. Can solve problems caused by the inability to hear.

  On the other hand, when it is determined that the audio being played back in step S9 is not the genre to be paused, that is, the audio being played back in step S5 is not the genre to be paused, the volume is gradually reduced in step S12. In the example of FIG. 1, the process proceeds to step S12, and the volume is gradually increased and then normal reproduction is performed. Thereby, it is possible to prevent the user from feeling uncomfortable by suddenly performing normal volume audio output from the voice guidance of the guidance route.

  After performing steps S10 and S13, the process proceeds to step S11, where it is determined whether or not the destination has been reached. If the destination has not yet been reached, the process returns to step S1 and arrives at the destination. The above operation is repeated until On the other hand, when it is determined that the vehicle has arrived at the destination, the process proceeds to step S14 and the series of processes is terminated.

DESCRIPTION OF SYMBOLS 1 Audio | voice audio equipment 2 vehicle audio equipment 3 System control part 4 Audio | voice output control part 5 Guidance route voice guidance start detection part 6 Audio | voice action detection part 7 Playback audio | voice origin detection part 8 Audio | voice reproduction | regeneration pause specific genre Data accumulation section 9 Guidance route voice guidance end detection section 10 Audio output instruction section 11 Volume adjustment instruction section 12 Volume gradually decrease instruction section 13 Volume gradually increase instruction section 14 Audio playback reproduction stop instruction section 15 Audio playback start instruction section 16 External device Connection unit 17 Interior audio device 18 Navigation function unit 19 Guidance route guide unit 20 Audio output unit 21 Guidance route audio guidance output unit 22 Audio output unit 23 Volume adjustment unit 24 Volume gradually decrease adjustment unit 25 Volume gradually increase adjustment unit

Claims (5)

Audio output means capable of simultaneously outputting audio guidance and navigation guidance voice guidance of navigation,
Guidance route voice guidance start detection means for detecting the start of navigation guidance route voice guidance;
An audio output instruction means for giving an instruction to the output of the audio currently being reproduced when detecting that the guidance route voice guidance for navigation is started by the guide route voice guidance start detection means;
Replay audio audio genre detection means for detecting the audio audio genre currently being reproduced and output when it is detected by the guidance route audio guidance start detection means that navigation audio guidance is started,
In the audio output instruction means, when it is detected that the audio currently being played back and output by the playback audio audio genre detecting means is a specific genre set in advance, playback of the output audio audio is temporarily performed. Give instructions to stop,
When it is detected that the genre is other than the preset specific genre, the guidance route voice guidance output is characterized by instructing to stop the reproduction after gradually decreasing the volume of the output audio. Audio control device. The specific genre set in advance is a genre stored in the audio reproduction pause specific genre data storage means,
When the audio output instruction means detects that the audio audio genre detected in advance by the reproduction audio audio genre detection means is a genre stored in the audio audio reproduction pause specific genre data storage means, 2. The guidance route voice guidance output audio control device according to claim 1, wherein an instruction to pause playback of the audio audio being output is given. A guidance route voice guidance end detection means for detecting that the guidance route voice guidance is finished,
When the guidance route voice guidance end detection means detects that the guidance route voice guidance has been stopped, the audio output instruction means gives an instruction to stop playback after gradually decreasing the volume of the audio first. 2. The guidance route voice guidance output audio control device according to claim 1, wherein an instruction for normal voice output is given after the volume of the audio is gradually increased. A guidance route voice guidance end detection means for detecting that the guidance route voice guidance is finished,
When it is detected by the guidance route voice guidance end detection means that the voice guidance on the guidance route has been stopped, when the audio output instruction means gives an instruction to pause audio playback first, the audio volume is gradually increased. 2. The guidance route voice guidance output audio control device according to claim 1, wherein an instruction to perform normal voice output without increasing is given.   2. The guidance route voice guidance output audio control device according to claim 1, wherein the audio output means is a head unit mounted on a vehicle.

Images