WO2018223608A1 - 基于导航的音频处理方法和装置 - Google Patents

基于导航的音频处理方法和装置 Download PDF

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Publication number
WO2018223608A1
WO2018223608A1 PCT/CN2017/111413 CN2017111413W WO2018223608A1 WO 2018223608 A1 WO2018223608 A1 WO 2018223608A1 CN 2017111413 W CN2017111413 W CN 2017111413W WO 2018223608 A1 WO2018223608 A1 WO 2018223608A1
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Prior art keywords
navigation
audio
output
application
name
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English (en)
French (fr)
Inventor
黄泽明
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Shenzhen Water World Co Ltd
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Shenzhen Water World Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/167—Audio in a user interface, e.g. using voice commands for navigating, audio feedback
    • 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
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3629—Guidance using speech or audio output, e.g. text-to-speech
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use

Definitions

  • the present invention relates to the field of navigation technologies, and in particular, to a navigation-based audio processing method and apparatus.
  • car navigation devices At present, many vehicles integrate car navigation devices, and the car navigation device can indicate the driving route for the driver, which greatly facilitates people's travel.
  • Car navigation devices usually integrate navigation, multimedia, radio and other functions, and users can download and install third-party applications according to their needs. Therefore, car navigation devices can not only broadcast reports, but also play music, listen to radio, make calls, and so on.
  • the navigation application is superimposed with the audio of other applications, so that the user cannot hear the sound of the navigation report, thereby affecting The accuracy of the driving route and the safety of driving.
  • the main object of the present invention is to provide a navigation-based audio processing method and apparatus, which aims to solve the technical problem that the navigation application is superimposed with the audio of other applications to output a sound that causes the user to be unable to hear the navigation report.
  • an embodiment of the present invention provides a navigation-based audio processing method, where the method includes the following steps:
  • the output volume of the non-navigation audio is reduced according to the mixing ratio.
  • the step of monitoring whether there is a navigation audio output comprises:
  • the step of monitoring whether there is a navigation audio output comprises:
  • the method further includes:
  • the audio stream of the navigation application is set to a specified name according to an application name of the navigation application.
  • the step of reducing the output volume of the non-navigation audio according to the mixing ratio further includes:
  • the step of monitoring whether the navigation audio output ends includes:
  • the step of monitoring whether the navigation audio output ends includes:
  • the method is applied to a car navigation device.
  • the car navigation device is based on an Android system.
  • the embodiment of the invention simultaneously provides a navigation-based audio processing device, the device comprising:
  • a mixing setting module for setting a mixing ratio of non-navigation audio and navigation audio
  • a first audio monitoring module for monitoring whether there is a navigation audio output
  • the volume reduction module is configured to reduce the output volume of the non-navigation audio according to the mixing ratio when there is a navigation audio output.
  • the first audio monitoring module includes:
  • a first request listening unit configured to listen to a request for applying an audio focus
  • a first application determining unit configured to determine, in the request for applying the audio focus, whether the application currently having the audio output is a navigation application
  • the first output determining unit is configured to determine that there is a navigation audio output if the application currently having the audio output is a navigation application.
  • the first audio monitoring module includes:
  • a first audio stream monitoring unit configured to monitor a current audio stream
  • a first name determining unit configured to determine whether the name of the audio stream is a specified name
  • the second output determining unit is configured to determine that the navigation audio output is if the name of the audio stream is a designated name.
  • the device further includes a name setting module, where the name setting module includes:
  • An application name setting unit for setting an application name of the navigation application
  • an audio stream name setting unit configured to set an audio stream of the navigation application to a specified name according to an application name of the navigation application when the navigation application creates a track object.
  • the device further includes:
  • a second audio monitoring module configured to monitor whether the navigation audio output ends
  • the volume recovery module is configured to restore the output volume of the non-navigation audio to the original volume when the navigation audio output ends.
  • the second audio monitoring module includes:
  • a second application determining unit configured to determine, in the request for abandoning the audio focus, whether the application that is currently abandoning the audio output is a navigation application
  • the first end determining unit is configured to determine that the navigation audio output ends if the application that currently abandons the audio output is a navigation application.
  • the second audio monitoring module includes:
  • a second audio stream monitoring unit configured to monitor a current audio stream
  • a second name determining unit configured to determine whether the name of the audio stream is an unspecified name
  • the second end determining unit is configured to determine that the navigation audio output ends if the name of the audio stream is a non-designated name.
  • the device is applied to a car navigation device.
  • Embodiments of the present invention also provide an in-vehicle navigation device including a memory, a processor, and at least one application stored in the memory and configured to be executed by the processor, the application It is configured to perform the aforementioned navigation-based audio processing method.
  • a navigation-based audio processing method provided by an embodiment of the present invention, by setting a mixing ratio of non-navigation audio and navigation audio, when there is navigation audio output, reducing the output volume of the non-navigation audio according to the mixing ratio, so that driving During the process, the user can clearly hear the sound of the navigation report, and solve the technical problem that the navigation application is superimposed with the audio of other applications, so that the user cannot hear the sound of the navigation report, and the accuracy of the driving route is improved and improved.
  • the safety of driving has greatly improved the user experience.
  • FIG. 1 is a flow chart of a first embodiment of a navigation-based audio processing method of the present invention
  • FIG. 2 is a flow chart of a second embodiment of a navigation-based audio processing method of the present invention.
  • FIG. 3 is a block diagram showing a first embodiment of a navigation-based audio processing device according to the present invention.
  • FIG. 4 is a block diagram of the first audio monitoring module of FIG. 3;
  • FIG. 5 is another block diagram of the first audio monitoring module of FIG. 3;
  • FIG. 6 is a block diagram showing a second embodiment of a navigation-based audio processing device according to the present invention.
  • Figure 7 is a block diagram of the name setting module in Figure 6;
  • FIG. 8 is a block diagram showing a third embodiment of a navigation-based audio processing apparatus according to the present invention.
  • FIG. 9 is a block diagram of a second audio monitoring module of FIG. 8.
  • FIG. 10 is another block diagram of the second audio monitoring module of FIG. 8.
  • a first embodiment of a navigation-based audio processing method according to the present invention is provided.
  • the audio processing method based on navigation in the embodiment of the present invention can be applied to a car navigation device, and can also be applied to a mobile terminal having a navigation function such as a mobile phone or a tablet. Or a portable navigation device.
  • the embodiment of the present invention is described in detail as an example of an in-vehicle navigation device.
  • the in-vehicle navigation device is preferably based on an Android system, and may be based on other operating systems, which is not limited herein.
  • the method includes the following steps:
  • the mix ratio can be set from 0-1.
  • the non-navigation audio is muted, only the navigation audio output; when set to 1, the output volume of the non-navigation audio remains unchanged, and is superimposed with the navigation audio and output; when set between 0-1, The output volume of the non-navigation audio is proportionally reduced and then superimposed with the navigation audio.
  • the mix ratio can be set in the upper layer.
  • a mixing switch can also be set. When the mixing switch is turned on, the output volume of the non-navigation audio is adjusted according to the mixing ratio; when the mixing switch is turned off, the non-navigation audio is not adjusted.
  • the non-navigation audio according to the embodiment of the present invention refers to audio output by any application other than the navigation application, including music, broadcasting, telephone, and the like.
  • the car navigation device can monitor whether there is navigation audio output by:
  • the car navigation device monitors the request for applying the audio focus (requestAudioFocus), and determines whether the application with the audio output is a navigation application in the request for applying the audio focus; if the application with the audio output is the navigation application, the navigation is The application starts to navigate the report point and determines that there is navigation audio output; if the application with current audio output is not a navigation application, it is determined that there is no navigation audio output.
  • the car navigation device monitors the current audio stream, and determines whether the name of the audio stream is a specified name; if the name of the audio stream is a specified name, the current audio stream is an audio stream of the navigation application, and the navigation is determined. Audio output; if the name of the audio stream is a non-designated name, the current audio stream is not the audio stream of the navigation application, and it is determined that there is no navigation audio output.
  • the method of the present invention is based on the application of the Android system.
  • the Android system of the present invention is an application layer (ie, an upper layer), a framework layer (Framework), a system runtime layer, and a linux core layer from a high layer to a low layer.
  • the name of the audio stream of the navigation application may be specified before step S12, specifically: setting an application name of the navigation application by using an interface of an audio manager (Audio Manager) of the upper application; creating a sound in the navigation application at the framework layer
  • an AudioTrack object is used, the navigation application's audio stream is set to a specified name, such as "STREAM_ALARM", depending on the application name of the navigation application.
  • the car navigation device when there is navigation audio output, the car navigation device reduces the output volume of the non-navigation audio according to the mixing ratio, ensures that the user can clearly hear the sound of the navigation report during the driving process, and ensure the correct driving route. And driving safety.
  • the output volume of the non-navigation audio is reduced to 30% of the original volume, that is, 70% is reduced based on the original volume; when the mix ratio is 0.6, the non-navigation is performed.
  • the output volume of the audio is reduced to 60% of the original volume, which is 40% lower than the original volume.
  • the mix ratios for music, radio, and telephone are set to 0.5, 0.6, and 0.8 respectively.
  • the output volume of the music is reduced to 50% of the original volume;
  • the navigation audio output is When there is a broadcast output, the output volume of the broadcast is reduced to 60% of the original volume;
  • the audio output of the navigation is accompanied by the telephone output, the output volume of the telephone is reduced to 80% of the original volume.
  • the user can set a higher mixing ratio for important audio information as needed, and listen to the navigation report without missing important audio information.
  • the method further includes:
  • the car navigation device can monitor whether the navigation audio output ends by:
  • the car navigation device monitors the request to abandon the audio focus (abandonAudioFocus), and determines whether the application that abandons the audio output is a navigation application in the request to abandon the audio focus; if the application that abandons the audio output is a navigation application, the navigation is The application ends the navigation report and determines that the navigation audio output ends.
  • the car navigation device monitors the current audio stream, and determines whether the name of the current audio stream is an unspecified name; if the name of the audio is a non-designated name, the current audio stream is not the audio stream of the navigation application, and the determination is performed.
  • the navigation audio output ends.
  • the specified name is "STREAM_ALARM”
  • when the name of the current audio stream is no longer "STREAM_ALARM” it is determined that the navigation audio output ends.
  • the car navigation device When the navigation audio output ends, the car navigation device immediately restores the output volume of the non-navigation audio to the original volume, so that the user can resume normal listening to music, listening to the radio, making a call, and the like.
  • the audio processing method based on navigation in the embodiment of the invention sets the mixing ratio of the non-navigation audio and the navigation audio, and when there is the navigation audio output, reduces the output volume of the non-navigation audio according to the mixing ratio, so that the user can clear during the driving process.
  • the sound of the navigation report ensures the accuracy of the driving route, improves the safety of driving, and greatly enhances the user experience.
  • a first embodiment of a navigation-based audio processing device is provided.
  • the audio processing device based on navigation in the embodiment of the present invention can be applied to a car navigation device, and can also be applied to a mobile terminal having a navigation function such as a mobile phone or a tablet. Or a portable navigation device.
  • the embodiment of the present invention is described in detail as an example of an in-vehicle navigation device.
  • the in-vehicle navigation device is preferably based on an Android system, and may be based on other operating systems, which is not limited herein.
  • the device includes a mixing setting module 10, a first audio monitoring module 20, and a volume reduction module 30, wherein: a mixing setting module 10, configured to set a mixing ratio of the non-navigation audio and the navigation audio; the first audio monitoring module 20 For monitoring whether there is navigation audio output; the volume reduction module 30 is configured to reduce the output volume of the non-navigation audio according to the mixing ratio when there is navigation audio output.
  • the non-navigation audio according to the embodiment of the present invention refers to audio output by any application other than the navigation application, including music, broadcasting, telephone, and the like.
  • the setting range of the mixing ratio is 0-1.
  • the non-navigation audio is muted, only the navigation audio output; when set to 1, the output volume of the non-navigation audio remains unchanged, and is superimposed with the navigation audio and output; when set between 0-1, The output volume of the non-navigation audio is proportionally reduced and then superimposed with the navigation audio.
  • the mixing setting module 10 can set the mixing ratio in the upper layer application. Further, a mixing switch can also be set. When the mixing switch is turned on, the output volume of the non-navigation audio is adjusted according to the mixing ratio; when the mixing switch is turned off, the non-navigation audio is not adjusted.
  • the volume reduction module 30 when there is navigation audio output, the volume reduction module 30 reduces the output volume of the non-navigation audio according to the mixing ratio, and ensures that the user can clearly hear the voice of the navigation report during the driving process. To ensure the correct driving route and driving safety.
  • the volume reduction module 30 reduces the output volume of the non-navigation audio to 30% of the original volume, that is, 70% lower than the original volume; when the mixing ratio is 0.6, The volume reduction module 30 reduces the output volume of the non-navigation audio to 60% of the original volume, which is 40% lower than the original volume.
  • the mix setting module 10 can also set different mix ratios for different non-navigation audios.
  • the music, broadcast, and telephone settings are respectively set to 0.5, 0.6, and 0.8.
  • the volume reduction module 30 reduces the output volume of the music to 50% of the original volume;
  • the volume reduction module 30 reduces the output volume of the broadcast to 60% of the original volume;
  • the volume reduction module 30 outputs the output of the phone.
  • the volume is reduced to 80% of the original volume.
  • the user can set a higher mixing ratio for important audio information as needed, and listen to the navigation report without missing important audio information.
  • the car navigation device can monitor whether there is navigation audio output by:
  • the first audio monitoring module 20 includes a first request listening unit 21, a first application determining unit 22, and a first output determining unit 23, wherein: the first request listening unit 21 is configured to monitor a request for applying an audio focus; the first application determining unit 22 is configured to determine, in the request for applying the audio focus, whether the application currently having the audio output is a navigation application; the first output determining unit 23 is configured to: if the audio output is currently applied For the navigation application, it is determined that there is a navigation audio output, otherwise it is determined that there is no navigation audio output.
  • the first audio monitoring module 20 includes a first audio stream monitoring unit 24, a first name determining unit 25, and a second output determining unit 26, wherein: the first audio stream monitoring unit 24 uses The first name judging unit 25 is configured to determine whether the name of the current audio stream is a specified name, and the second output determining unit 26 is configured to indicate the current name if the name of the audio stream is a specified name.
  • the audio stream is the audio stream of the navigation application, and it is determined that there is a navigation audio output, otherwise it is determined that there is no navigation audio output.
  • the device further includes a name setting module 40, by which the audio stream is set for the navigation application. Set the specified name.
  • the navigation-based audio processing device of the present invention is based on the Android system.
  • the Android system of the present invention is an application layer (ie, an upper layer), a framework layer (Framework), and a system runtime from a high layer to a low layer. Layer and linux core layer.
  • the name setting module 40 includes an application name setting unit 41 and an audio stream name setting unit 42.
  • the application name setting unit 41 is configured to set an application name of the navigation application. In specific implementation, the interface of the audio manager can be called by the upper application.
  • the application name of the navigation application is set.
  • the audio stream name setting unit 42 is configured to set the audio stream of the navigation application to a specified name, such as “STREAM_ALARM”, according to the application name of the navigation application when the navigation layer creates the track object in the framework layer.
  • the device further includes a second audio monitoring module 50 and a volume recovery module 60, wherein: the second audio monitoring module 50, For monitoring whether the navigation audio output ends; the volume recovery module 60 is configured to restore the output volume of the non-navigation audio to the original volume when the navigation audio output ends.
  • the user can resume normal listening to music, listening to the radio, making a phone call, and the like.
  • the second audio monitoring module 50 can monitor whether the navigation audio output ends by:
  • the second audio monitoring module 50 includes a second request listening unit 51, a second application determining unit 52, and a first ending determining unit 53, wherein: the second request listening unit 51 is configured to monitor A request to abandon the audio focus; the second application determining unit 52 is configured to determine whether the application that is currently abandoning the audio output is a navigation application in the request to abandon the audio focus; the first end determining unit 53 is configured to: discard the application of the audio output For the navigation application, the navigation application ends the navigation report and determines that the navigation audio output ends.
  • the second audio monitoring module 50 includes a second audio stream monitoring unit 54, a second name determining unit 55, and a second ending determining unit 56, wherein: the second audio stream monitoring unit 54 uses The second name determining unit 55 is configured to determine whether the name of the current audio stream is an unspecified name, and the second ending determining unit 56 is configured to: if the name of the current audio stream is an unspecified name Said, it means that the current audio stream is not the audio stream of the navigation application, and it is determined that the navigation audio output ends.
  • the designation name is "STREAM_ALARM”
  • the second end determination unit 56 determines that the navigation audio output ends.
  • the audio processing device based on navigation in the embodiment of the present invention, by setting the mixing ratio of the non-navigation audio and the navigation audio, when there is the navigation audio output, the output volume of the non-navigation audio is reduced according to the mixing ratio, so that the user can clear during the driving process.
  • the sound of the navigation report ensures the accuracy of the driving route, improves the safety of driving, and greatly enhances the user experience.
  • the invention also proposes a car navigation device comprising a memory, a processor and at least one application stored in the memory and configured to be executed by the processor, the application being configured for execution Navigation-based audio processing method.
  • the navigation-based audio processing method includes the steps of: setting a mixing ratio of the non-navigation audio and the navigation audio; monitoring whether there is a navigation audio output; and when there is a navigation audio output, reducing the output of the non-navigation audio according to the mixing ratio volume.
  • the navigation-based audio processing method described in this embodiment is a navigation-based audio processing method according to the foregoing embodiment of the present invention, and details are not described herein again.
  • the present invention includes apparatus that is directed to performing one or more of the operations described herein. These devices may be specially designed and manufactured for the required purposes, or may also include known devices in a general purpose computer. These devices have computer programs stored therein that are selectively activated or reconfigured.
  • Such computer programs may be stored in a device (eg, computer) readable medium or in any type of medium suitable for storing electronic instructions and coupled to a bus, respectively, including but not limited to any Types of disks (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only Memory) , EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card. That is, the readable medium includes a form that can be read by a device (eg, a computer) Any medium that stores or transmits information.
  • a device eg, a computer
  • each block of the block diagrams and/or block diagrams and/or flow diagrams and combinations of blocks in the block diagrams and/or block diagrams and/or flow diagrams can be implemented by computer program instructions. .
  • these computer program instructions can be implemented by a general purpose computer, a professional computer, or a processor of other programmable data processing methods, such that the processor is executed by a computer or other programmable data processing method.
  • steps, measures, and solutions in the various operations, methods, and processes that have been discussed in the present invention may be alternated, changed, combined, or deleted. Further, other steps, measures, and schemes of the various operations, methods, and processes that have been discussed in the present invention may be alternated, modified, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and solutions in the prior art having various operations, methods, and processes disclosed in the present invention may also be alternated, changed, rearranged, decomposed, combined, or deleted.

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Abstract

一种基于导航的音频处理方法和装置，所述方法包括以下步骤：设置非导航音频与导航音频的混音比例(S11)；监听是否有导航音频输出(S12)；当有导航音频输出时，根据所述混音比例降低非导航音频的输出音量(S13)。上述方法通过设置非导航音频与导航音频的混音比例，当有导航音频输出时则根据混音比例降低非导航音频的输出音量，使得行车过程中用户能够清晰的听到导航报点的声音，保证了行车路线的准确性，提高了行车的安全性，极大的提升了用户体验。

Description

基于导航的音频处理方法和装置 技术领域
本发明涉及导航技术领域，特别是涉及到一种基于导航的音频处理方法和装置。
背景技术
目前，很多车辆集成了车载导航设备，车载导航设备可以为驾驶员指明驾驶路线，极大的方便了人们的出行。车载导航设备通常集成了导航、多媒体、收音机等功能，并且用户可以根据需求下载并安装第三方应用，因此车载导航设备不但可以进行导航报点，还可以播放音乐、收听广播、拨打电话等。
在行车过程中，用户开启导航的同时，通常也会播放音乐、收听广播或者拨打电话，此时导航应用与其它应用的音频叠加在一起输出，使得用户无法听清导航报点的声音，从而影响行车路线的准确性以及行车的安全性。
技术问题
本发明的主要目的为提供一种基于导航的音频处理方法和装置，旨在解决导航应用与其它应用的音频叠加在一起输出导致用户无法听清导航报点的声音的技术问题。
问题的解决方案
技术解决方案
为达以上目的，本发明实施例提出一种基于导航的音频处理方法，所述方法包括以下步骤：
设置非导航音频与导航音频的混音比例；
监听是否有导航音频输出；
当有导航音频输出时，根据所述混音比例降低非导航音频的输出音量。
可选地，所述监听是否有导航音频输出的步骤包括：
监听申请音频焦点的请求；
在申请音频焦点的请求中判断当前有音频输出的应用是否为导航应用；
若是，则判定有导航音频输出。
可选地，所述监听是否有导航音频输出的步骤包括：
监听当前的音频流；
判断所述音频流的名称是否为指定名称；
若是，则判定有导航音频输出。
可选地，所述监听是否有导航音频输出的步骤之前还包括：
设置导航应用的应用名称；
在所述导航应用创建音轨对象时，根据所述导航应用的应用名称将所述导航应用的音频流设置为指定名称。
可选地，所述根据所述混音比例降低非导航音频的输出音量的步骤之后还包括：
监听导航音频输出是否结束；
当导航音频输出结束时，恢复非导航音频的输出音量至原有音量。
可选地，所述监听导航音频输出是否结束的步骤包括：
监听放弃音频焦点的请求；
在放弃音频焦点的请求中判断当前放弃音频输出的应用是否为导航应用；
若是，则判定导航音频输出结束。
可选地，所述监听导航音频输出是否结束的步骤包括：
监听当前的音频流；
判断所述音频流的名称是否为非指定名称；
若是，则判定导航音频输出结束。
可选地，所述方法应用于车载导航设备。
可选地，所述车载导航设备基于安卓系统。
本发明实施例同时提出一种基于导航的音频处理装置，所述装置包括：
混音设置模块，用于设置非导航音频与导航音频的混音比例；
第一音频监听模块，用于监听是否有导航音频输出；
音量降低模块，用于当有导航音频输出时，根据所述混音比例降低非导航音频的输出音量。
可选地，所述第一音频监听模块包括：
第一请求监听单元，用于监听申请音频焦点的请求；
第一应用判断单元，用于在申请音频焦点的请求中判断当前有音频输出的应用是否为导航应用；
第一输出判定单元，用于若当前有音频输出的应用为导航应用，则判定有导航音频输出。
可选地，所述第一音频监听模块包括：
第一音频流监听单元，用于监听当前的音频流；
第一名称判断单元，用于判断所述音频流的名称是否为指定名称；
第二输出判定单元，用于若所述音频流的名称为指定名称，则判定有导航音频输出。
可选地，所述装置还包括名称设置模块，所述名称设置模块包括：
应用名称设置单元，用于设置导航应用的应用名称；
音频流名称设置单元，用于在所述导航应用创建音轨对象时，根据所述导航应用的应用名称将所述导航应用的音频流设置为指定名称。
可选地，所述装置还包括：
第二音频监听模块，用于监听导航音频输出是否结束；
音量恢复模块，用于当导航音频输出结束时，恢复非导航音频的输出音量至原有音量。
可选地，所述第二音频监听模块包括：
第二请求监听单元，用于监听放弃音频焦点的请求；
第二应用判断单元，用于在放弃音频焦点的请求中判断当前放弃音频输出的应用是否为导航应用；
第一结束判定单元，用于若当前放弃音频输出的应用为导航应用，则判定导航音频输出结束。
可选地，所述第二音频监听模块包括：
第二音频流监听单元，用于监听当前的音频流；
第二名称判断单元，用于判断所述音频流的名称是否为非指定名称；
第二结束判定单元，用于若所述音频流的名称为非指定名称，则判定导航音频输出结束。
可选地，所述装置应用于车载导航设备。
本发明实施例还提出一种车载导航设备，所述车载导航设备包括存储器、处理器和至少一个被存储在所述存储器中并被配置为由所述处理器执行的应用程序，所述应用程序被配置为用于执行前述基于导航的音频处理方法。
发明的有益效果
有益效果
本发明实施例所提供的一种基于导航的音频处理方法，通过设置非导航音频与导航音频的混音比例，当有导航音频输出时则根据混音比例降低非导航音频的输出音量，使得行车过程中用户能够清晰的听到导航报点的声音，解决了导航应用与其它应用的音频叠加在一起输出导致用户无法听清导航报点的声音的技术问题，保证了行车路线的准确性，提高了行车的安全性，极大的提升了用户体验。
对附图的简要说明
附图说明
图1是本发明基于导航的音频处理方法第一实施例的流程图；
图2是本发明基于导航的音频处理方法第二实施例的流程图；
图3是本发明基于导航的音频处理装置第一实施例的模块示意图；
图4是图3中的第一音频监听模块的模块示意图；
图5是图3中的第一音频监听模块的又一模块示意图；
图6是本发明基于导航的音频处理装置第二实施例的模块示意图；
图7图6中的名称设置模块的模块示意图；
图8是本发明基于导航的音频处理装置第三实施例的模块示意图；
图9是图8中的第二音频监听模块的模块示意图；
图10是图8中的第二音频监听模块的又一模块示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
实施该发明的最佳实施例
本发明的最佳实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能解释为对本发明的限制。
本技术领域技术人员可以理解，除非特意声明，这里使用的单数形式“一”、“一个”、“所述”和“该”也可包括复数形式。应该进一步理解的是，本发明的说明书中使用的措辞“包括”是指存在所述特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。应该理解，当我们称元件被“连接”或“耦接”到另一元件时，它可以直接连接或耦接到其他元件，或者也可以存在中间元件。此外，这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的措辞“和/或”包括一个或更多个相关联的列出项的全部或任一单元和全部组合。
本技术领域技术人员可以理解，除非另外定义，这里使用的所有术语(包括技术术语和科学术语)，具有与本发明所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语，应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样被特定定义，否则不会用理想化或过于正式的含义来解释。
参照图1，提出本发明基于导航的音频处理方法第一实施例，本发明实施例基于导航的音频处理方法，可以应用于车载导航设备，也可以应用于手机、平板等具有导航功能的移动终端或者便携式导航设备。本发明实施例以应用于车载导航设备为例进行详细说明，所述车载导航设备优选基于安卓(Android)系统，当然也可以基于其它的操作系统，在此不做限定。所述方法包括以下步骤：
S11、设置非导航音频与导航音频的混音比例。
混音比例的设置范围为0-1。当设置为0时，非导航音频静音，只有导航音频输出；当设置为1时，非导航音频的输出音量保持不变，并与导航音频叠加后输出；当设置在0-1之间时，则按比例降低非导航音频的输出音量，然后与导航音频叠加输出。
在具体实施时，可以在上层应用设置混音比例。进一步地，还可以设置混音开关，当混音开关开启时，根据混音比例调整非导航音频的输出音量；当混音开关关闭时，则不予调整非导航音频。
本发明实施例所述的非导航音频，是指除导航应用之外的其它任何应用输出的音频，包括音乐、广播、电话等。
S12、监听是否有导航音频输出。当有导航音频输出时，进入下一步骤S13。
本发明实施例中，车载导航设备可以通过以下方式监听是否有导航音频输出：
可选地，车载导航设备监听申请音频焦点(requestAudioFocus)的请求，在申请音频焦点的请求中判断当前有音频输出的应用是否为导航应用；若当前有音频输出的应用为导航应用，则说明导航应用开始导航报点，判定有导航音频输出；若当前有音频输出的应用不是导航应用，则判定没有导航音频输出。
可选地，车载导航设备监听当前的音频流，判断该音频流的名称是否为指定名称；若该音频流的名称为指定名称，则说明当前的音频流为导航应用的音频流，判定有导航音频输出；若该音频流的名称为非指定名称，则说明当前的音频流不是导航应用的音频流，判定没有导航音频输出。
本发明的方法基于安卓系统运用，本发明所述的安卓系统从高层到低层分别是应用程序层(即上层)、框架层(Framework)、系统运行库层和linux核心层。具体实施时，可以在步骤S12之前为导航应用的音频流设置指定名称，具体为：通过上层应用调用音频管理器(Audio Manager)的接口设置导航应用的应用名称；在框架层在导航应用创建音轨(AudioTrack)对象时，根据导航应用的应用名称将导航应用的音频流设置为指定名称，如“STREAM_ALARM”。
本领域技术人员可以理解，除此之外，还可以通过现有技术中的其它方式监听是否有导航音频输出，在此不再一一列举赘述。
S13、根据混音比例降低非导航音频的输出音量。
本发明实施例中，当有导航音频输出时，车载导航设备则根据混音比例降低非导航音频的输出音量，确保行车过程中用户能够清晰的听到导航报点的声音，保证正确的行车路线和行车安全。
例如，当混音比例为0.3时，则将非导航音频的输出音量降至原有音量的30％，即在原有音量的基础上降低70％；当混音比例为0.6时，则将非导航音频的输出音量降至原有音量的60％，即在原有音量的基础上降低40％。
进一步地，除了为所有的非导航音频统一设置混音比例外，还可以分别为不同的非导航音频设置不同的混音比例。例如，分别对音乐、广播、电话设置混音比例为0.5、0.6和0.8，当导航音频输出的同时有音乐输出时，则将音乐的输出音量降至原有音量的50％；当导航音频输出的同时有广播输出时，则将广播的输出音量降至原有音量的60％；当导航音频输出的同时有电话输出时，则将电话的输出音量降至原有音量的80％。从而，用户可以根据需要对重要的音频信息设置更高的混音比例，在听清导航报点的同时，也不会错过重要的音频信息。
进一步地，在本发明基于导航的音频处理方法第二实施例，步骤S13之后还包括：
S14、监听导航音频输出是否结束。当导航音频输出结束时，进入下一步骤S15。
本发明实施例中，车载导航设备可以通过以下方式监听导航音频输出是否结束：
可选地，车载导航设备监听放弃音频焦点(abandonAudioFocus)的请求，在放弃音频焦点的请求中判断当前放弃音频输出的应用是否为导航应用；若当前放弃音频输出的应用为导航应用，则说明导航应用结束导航报点，判定导航音频输出结束。
可选地，车载导航设备监听当前的音频流，判断当前的音频流的名称是否为非指定名称；若该音频的名称为非指定名称，则说明当前的音频流不是导航应用的音频流，判定导航音频输出结束。例如，指定名称为“STREAM_ALARM”，当当前的音频流的名称不再是“STREAM_ALARM”，则判定导航音频输出结束。
本领域技术人员可以理解，除此之外，还可以通过现有技术中的其它方式监听 导航音频输出是否结束，在此不再一一列举赘述。
S15、恢复非导航音频的输出音量至原有音量。
当导航音频输出结束时，车载导航设备则立即恢复非导航音频的输出音量至原有音量，从而使得用户可以恢复正常听音乐、听广播、打电话等。
本发明实施例基于导航的音频处理方法，通过设置非导航音频与导航音频的混音比例，当有导航音频输出时则根据混音比例降低非导航音频的输出音量，使得行车过程中用户能够清晰的听到导航报点的声音，保证了行车路线的准确性，提高了行车的安全性，极大的提升了用户体验。
参见图3，提出本发明基于导航的音频处理装置第一实施例，本发明实施例基于导航的音频处理装置，可以应用于车载导航设备，也可以应用于手机、平板等具有导航功能的移动终端或者便携式导航设备。本发明实施例以应用于车载导航设备为例进行详细说明，所述车载导航设备优选基于安卓(Android)系统，当然也可以基于其它的操作系统，在此不做限定。
所述装置包括混音设置模块10、第一音频监听模块20和音量降低模块30，其中：混音设置模块10，用于设置非导航音频与导航音频的混音比例；第一音频监听模块20，用于监听是否有导航音频输出；音量降低模块30，用于当有导航音频输出时，根据混音比例降低非导航音频的输出音量。
本发明实施例所述的非导航音频，是指除导航应用之外的其它任何应用输出的音频，包括音乐、广播、电话等。
本发明实施例中，混音比例的设置范围为0-1。当设置为0时，非导航音频静音，只有导航音频输出；当设置为1时，非导航音频的输出音量保持不变，并与导航音频叠加后输出；当设置在0-1之间时，则按比例降低非导航音频的输出音量，然后与导航音频叠加输出。
在具体实施时，混音设置模块10可以在上层应用设置混音比例。进一步地，还可以设置混音开关，当混音开关开启时，根据混音比例调整非导航音频的输出音量；当混音开关关闭时，则不予调整非导航音频。
本发明实施例中，当有导航音频输出时，音量降低模块30则根据混音比例降低非导航音频的输出音量，确保行车过程中用户能够清晰的听到导航报点的声音 ，保证正确的行车路线和行车安全。
例如，当混音比例为0.3时，音量降低模块30则将非导航音频的输出音量降至原有音量的30％，即在原有音量的基础上降低70％；当混音比例为0.6时，音量降低模块30则将非导航音频的输出音量降至原有音量的60％，即在原有音量的基础上降低40％。
进一步地，除了为所有的非导航音频统一设置混音比例外，混音设置模块10还可以分别为不同的非导航音频设置不同的混音比例。例如，分别对音乐、广播、电话设置混音比例为0.5、0.6和0.8，当导航音频输出的同时有音乐输出时，音量降低模块30则将音乐的输出音量降至原有音量的50％；当导航音频输出的同时有广播输出时，音量降低模块30则将广播的输出音量降至原有音量的60％；当导航音频输出的同时有电话输出时，音量降低模块30则将电话的输出音量降至原有音量的80％。从而，用户可以根据需要对重要的音频信息设置更高的混音比例，在听清导航报点的同时，也不会错过重要的音频信息。
本发明实施例中，车载导航设备可以通过以下方式监听是否有导航音频输出：
可选地，如图4所示，第一音频监听模块20包括第一请求监听单元21、第一应用判断单元22和第一输出判定单元23，其中：第一请求监听单元21，用于监听申请音频焦点的请求；第一应用判断单元22，用于在申请音频焦点的请求中判断当前有音频输出的应用是否为导航应用；第一输出判定单元23，用于若当前有音频输出的应用为导航应用，则判定有导航音频输出，否则判定没有导航音频输出。
可选地，如图5所示，第一音频监听模块20包括第一音频流监听单元24、第一名称判断单元25和第二输出判定单元26，其中：第一音频流监听单元24，用于监听当前的音频流；第一名称判断单元25，用于判断当前的音频流的名称是否为指定名称；第二输出判定单元26，用于若音频流的名称为指定名称，则说明当前的音频流为导航应用的音频流，判定有导航音频输出，否则判定没有导航音频输出。
进一步地，如图6所示，在本发明基于导航的音频处理装置第二实施例中，该装置还包括名称设置模块40，通过该名称设置模块40来为导航应用的音频流设 置指定名称。
如图7所示，本发明的基于导航的音频处理装置基于安卓系统运用，本发明所述的安卓系统从高层到低层分别是应用程序层(即上层)、框架层(Framework)、系统运行库层和linux核心层。名称设置模块40包括应用名称设置单元41和音频流名称设置单元42，其中：应用名称设置单元41，用于设置导航应用的应用名称，具体实施时，可以通过上层应用调用音频管理器的接口来设置导航应用的应用名称；音频流名称设置单元42，用于在框架层在导航应用创建音轨对象时，根据导航应用的应用名称将导航应用的音频流设置为指定名称，如“STREAM_ALARM”。
本领域技术人员可以理解，除此之外，还可以通过现有技术中的其它方式监听是否有导航音频输出，在此不再一一列举赘述。
进一步地，如图8所示，在本发明基于导航的音频处理装置的第三实施例中，该装置还包括第二音频监听模块50和音量恢复模块60，其中：第二音频监听模块50，用于监听导航音频输出是否结束；音量恢复模块60，用于当导航音频输出结束时，恢复非导航音频的输出音量至原有音量。从而使得用户可以恢复正常听音乐、听广播、打电话等。
本发明实施例中，第二音频监听模块50可以通过以下方式监听导航音频输出是否结束：
可选地，如图9所示，第二音频监听模块50包括第二请求监听单元51、第二应用判断单元52和第一结束判定单元53，其中：第二请求监听单元51，用于监听放弃音频焦点的请求；第二应用判断单元52，用于在放弃音频焦点的请求中判断当前放弃音频输出的应用是否为导航应用；第一结束判定单元53，用于若当前放弃音频输出的应用为导航应用，则说明导航应用结束导航报点，判定导航音频输出结束。
可选地，如图10所示，第二音频监听模块50包括第二音频流监听单元54、第二名称判断单元55和第二结束判定单元56，其中：第二音频流监听单元54，用于监听当前的音频流；第二名称判断单元55，用于判断当前的音频流的名称是否为非指定名称；第二结束判定单元56，用于若当前的音频流的名称为非指定名 称，则说明当前的音频流不是导航应用的音频流，判定导航音频输出结束。例如，指定名称为“STREAM_ALARM”，当当前的音频流的名称不再是“STREAM_ALARM”，第二结束判定单元56则判定导航音频输出结束。
本领域技术人员可以理解，除此之外，还可以通过现有技术中的其它方式监听导航音频输出是否结束，在此不再一一列举赘述。
本发明实施例基于导航的音频处理装置，通过设置非导航音频与导航音频的混音比例，当有导航音频输出时则根据混音比例降低非导航音频的输出音量，使得行车过程中用户能够清晰的听到导航报点的声音，保证了行车路线的准确性，提高了行车的安全性，极大的提升了用户体验。
本发明同时提出一种车载导航设备，所述车载导航设备包括存储器、处理器和至少一个被存储在存储器中并被配置为由处理器执行的应用程序，所述应用程序被配置为用于执行基于导航的音频处理方法。所述基于导航的音频处理方法包括以下步骤：设置非导航音频与导航音频的混音比例；监听是否有导航音频输出；当有导航音频输出时，根据所述混音比例降低非导航音频的输出音量。本实施例中所描述的基于导航的音频处理方法为本发明中上述实施例所涉及的基于导航的音频处理方法，在此不再赘述。
本领域技术人员可以理解，本发明包括涉及用于执行本申请中所述操作中的一项或多项的设备。这些设备可以为所需的目的而专门设计和制造，或者也可以包括通用计算机中的已知设备。这些设备具有存储在其内的计算机程序，这些计算机程序选择性地激活或重构。这样的计算机程序可以被存储在设备(例如，计算机)可读介质中或者存储在适于存储电子指令并分别耦联到总线的任何类型的介质中，所述计算机可读介质包括但不限于任何类型的盘(包括软盘、硬盘、光盘、CD-ROM、和磁光盘)、ROM(Read-Only Memory，只读存储器)、RAM(Random Access Memory，随机存储器)、EPROM(Erasable Programmable Read-Only Memory，可擦写可编程只读存储器)、EEPROM(Electrically Erasable Programmable Read-Only Memory，电可擦可编程只读存储器)、闪存、磁性卡片或光线卡片。也就是，可读介质包括由设备(例如，计算机)以能够读的形 式存储或传输信息的任何介质。
本技术领域技术人员可以理解，可以用计算机程序指令来实现这些结构图和/或框图和/或流图中的每个框以及这些结构图和/或框图和/或流图中的框的组合。本技术领域技术人员可以理解，可以将这些计算机程序指令提供给通用计算机、专业计算机或其他可编程数据处理方法的处理器来实现，从而通过计算机或其他可编程数据处理方法的处理器来执行本发明公开的结构图和/或框图和/或流图的框或多个框中指定的方案。
本技术领域技术人员可以理解，本发明中已经讨论过的各种操作、方法、流程中的步骤、措施、方案可以被交替、更改、组合或删除。进一步地，具有本发明中已经讨论过的各种操作、方法、流程中的其他步骤、措施、方案也可以被交替、更改、重排、分解、组合或删除。进一步地，现有技术中的具有与本发明中公开的各种操作、方法、流程中的步骤、措施、方案也可以被交替、更改、重排、分解、组合或删除。
以上参照附图说明了本发明的优选实施例，并非因此局限本发明的权利范围。本领域技术人员不脱离本发明的范围和实质，可以有多种变型方案实现本发明，比如作为一个实施例的特征可用于另一实施例而得到又一实施例。凡在运用本发明的技术构思之内所作的任何修改、等同替换和改进，均应在本发明的权利范围之内。

Claims (10)

  1. 一种基于导航的音频处理方法，其特征在于，包括以下步骤：
    设置非导航音频与导航音频的混音比例；
    监听是否有导航音频输出；
    当有导航音频输出时，根据所述混音比例降低非导航音频的输出音量。
  2. 根据权利要求1所述的基于导航的音频处理方法，其特征在于，所述监听是否有导航音频输出的步骤包括：
    监听申请音频焦点的请求；
    在申请音频焦点的请求中判断当前有音频输出的应用是否为导航应用；
    若是，则判定有导航音频输出。
  3. 根据权利要求1所述的基于导航的音频处理方法，其特征在于，所述监听是否有导航音频输出的步骤包括：
    监听当前的音频流；
    判断所述音频流的名称是否为指定名称；
    若是，则判定有导航音频输出。
  4. 根据权利要求3所述的基于导航的音频处理方法，其特征在于，所述监听是否有导航音频输出的步骤之前还包括：
    设置导航应用的应用名称；
    在所述导航应用创建音轨对象时，根据所述导航应用的应用名称将所述导航应用的音频流设置为指定名称。
  5. 根据权利要求1-4任一项所述的基于导航的音频处理方法，其特征在于，所述根据所述混音比例降低非导航音频的输出音量的步骤之后还包括：
    监听导航音频输出是否结束；
    当导航音频输出结束时，恢复非导航音频的输出音量至原有音量。
  6. 一种基于导航的音频处理装置，其特征在于，包括：
    混音设置模块，用于设置非导航音频与导航音频的混音比例；
    第一音频监听模块，用于监听是否有导航音频输出；
    音量降低模块，用于当有导航音频输出时，根据所述混音比例降低非导航音频的输出音量。
  7. 根据权利要求6所述的基于导航的音频处理装置，其特征在于，所述第一音频监听模块包括：
    第一请求监听单元，用于监听申请音频焦点的请求；
    第一应用判断单元，用于在申请音频焦点的请求中判断当前有音频输出的应用是否为导航应用；
    第一输出判定单元，用于若当前有音频输出的应用为导航应用，则判定有导航音频输出。
  8. 根据权利要求6所述的基于导航的音频处理装置，其特征在于，所述第一音频监听模块包括：
    第一音频流监听单元，用于监听当前的音频流；
    第一名称判断单元，用于判断所述音频流的名称是否为指定名称；
    第二输出判定单元，用于若所述音频流的名称为指定名称，则判定有导航音频输出。
  9. 根据权利要求8所述的基于导航的音频处理装置，其特征在于，所述装置还包括名称设置模块，所述名称设置模块包括：
    应用名称设置单元，用于设置导航应用的应用名称；
    音频流名称设置单元，用于在所述导航应用创建音轨对象时，根据所述导航应用的应用名称将所述导航应用的音频流设置为指定名称。
  10. 根据权利要求6-9任一项所述的基于导航的音频处理装置，其特征在于，所述装置还包括：
    第二音频监听模块，用于监听导航音频输出是否结束；
    音量恢复模块，用于当导航音频输出结束时，恢复非导航音频的输出音量至原有音量。
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