CN105374358A - Adaptive audio output method, adaptive audio output device, audio transmitting end and adaptive audio output system - Google Patents
Adaptive audio output method, adaptive audio output device, audio transmitting end and adaptive audio output system Download PDFInfo
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- CN105374358A CN105374358A CN201410402854.2A CN201410402854A CN105374358A CN 105374358 A CN105374358 A CN 105374358A CN 201410402854 A CN201410402854 A CN 201410402854A CN 105374358 A CN105374358 A CN 105374358A
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- audio
- receiving end
- interface receiving
- audio frequency
- decoding
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/003—Changing voice quality, e.g. pitch or formants
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
Abstract
The invention discloses an adaptive audio output method, an adaptive audio output device, an audio transmitting end and an adaptive audio output system. The adaptive audio output method comprises the steps of determining whether an audio receiving end supports decoding to the audio format of an audio by an audio transmitting end; if yes, outputting the audio to the audio receiving end, and otherwise decoding the audio and outputting decoded audio data to the audio output end. According to the adaptive audio output method, whether the audio receiving end supports decoding to the audio format of the audio to be displayed is determined through the audio transmitting end, and furthermore a decoded audio flow or source code after decoding is automatically output according to a determination result, thereby enabling a user to hear the high-quality audio without any operation setting, preventing a problem of complicated setting in switching output equipment by the user each time, and improving user experience.
Description
Technical field
The present invention relates to communication technical field, particularly relate to method, device, audio frequency transmitting terminal and system that a kind of adaptive audio exports.
Background technology
Along with the high speed development of growth in the living standard and multimedia technology, use terminal device viewing video or play games more and more universal in people's life.The aesthetic quality of people to audio frequency and video also more and more payes attention to, particularly more and more higher to the requirement of tonequality, stereo sound effect fruit etc., a lot of high quality audio encoding form is developed based on this requirement, such as Dolby Digital form (DD, DD+), the coded audio data of Digital Theater System form and Advanced Audio Coding format, for meeting the requirement of people to audio frequency effect.
Due to general digitized video/audio interface (HighDefinitionMultimediaInterface, HDMI) transmitting terminal (as, intelligent television box etc.) will by HDMI connect HDMI receiving end (as, TV, computer etc.) watch video, so audio frequency is finally rely on the sound card on HDMI receiving end to play.But the broadcasting of some high-quality voice datas do not supported by these sound cards usually, in order to play these HD video with high quality audio data or big games, need to configure by HDMI transmitting terminal the decoding that some soft demoders complete voice data, or by HDMI receiving end configuration power amplifying device, to be decoded high-quality voice data exporting by power amplifying device, but manually specifically can only arrange for soft decoding or power amplifying device decoding in prior art, thus cause unnecessary frustration to user.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of method that adaptive audio exports, device, audio frequency transmitting terminal and system, needs manually to arrange soft decoding and power amplifying device to decode the problem caused inconvenience to the user in order to solve in prior art.
For solving the problem, the present invention is mainly achieved through the following technical solutions: one aspect of the present invention provides a kind of method that adaptive audio exports, and the method comprises:
Judge whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and export decoded voice data to described audio interface receiving end.
Preferably, judge whether audio interface receiving end supports that the step of the decoding of the audio format of described audio frequency specifically comprises:
Obtain the extending display identification data EDID information of described audio interface receiving end, and judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to the extending display identification data EDID information of described audio interface receiving end.
Preferably, judge whether described audio interface receiving end supports that the step of the decoding of the audio format of described audio frequency specifically comprises according to the extending display identification data EDID information of described audio interface receiving end:
Judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to the audio format information in the EDID information of described audio interface receiving end.
Preferably, the step that described audio frequency is decoded specifically is comprised:
By soft demoder, described audio frequency is decoded.
Preferably, described audio interface receiving end comprises television terminal or computer terminal.
The present invention additionally provides the device that a kind of adaptive audio exports on the other hand, and this device comprises:
Judging unit, for judging whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, triggers transmitting element, otherwise trigger decoding unit;
Described decoding unit, for decoding to described audio frequency, triggers described transmitting element after decoding;
Described transmitting element, for exporting described audio frequency to described audio interface receiving end, or exports the voice data after described decoding unit decodes to described audio interface receiving end.
Preferably, this device also comprises acquiring unit;
Described acquiring unit, for obtaining the extending display identification data EDID information of described audio interface receiving end;
Described judging unit specifically for, judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to described EDID information, if so, trigger described transmitting element, otherwise trigger described decoding unit.
Preferably, described judging unit specifically for, judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to the audio format information in described EDID information, if so, trigger described transmitting element, otherwise trigger described decoding unit.
Preferably, described decoding unit specifically for, by soft demoder, described audio frequency is decoded.
Further aspect of the present invention additionally provides a kind of audio frequency transmitting terminal, and this audio frequency transmitting terminal comprises: above-mentioned device described in any one.
The present invention additionally provides again the system that a kind of adaptive audio exports again on the one hand, and this system comprises:
Audio frequency transmitting terminal, for judging whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, then described audio frequency is exported to described audio interface receiving end, otherwise described audio frequency is decoded, and exports decoded voice data to described audio interface receiving end;
Described audio interface receiving end, for receiving the described audio frequency or decoded voice data that described audio frequency transmitting terminal sends.
Preferably, described audio frequency transmitting terminal specifically for, obtain the extending display identification data EDID information of described audio interface receiving end, and judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to described EDID information, if, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and export decoded voice data to described audio interface receiving end.
Beneficial effect of the present invention is as follows:
By audio frequency transmitting terminal, the present invention judges whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, and automatically export decoded audio stream or source code according to judged result, user is allowed to carry out any operation setting, just can hear high-quality audio frequency, avoid user and switch the problem that output device all will carry out numerous and diverse setting at every turn, improve the experience that user uses.
Other features and advantages of the present invention will be set forth in the following description, and the becoming apparent from instructions of part, or by implementing the present invention and understanding.Object of the present invention and other advantages realize by structure specifically noted in write instructions, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the method that the adaptive audio of the embodiment of the present invention exports;
Fig. 2 is the process flow diagram of the method that the another kind of adaptive audio of the embodiment of the present invention exports;
Fig. 3 is the structural representation of the device that a kind of adaptive audio of the embodiment of the present invention exports;
Fig. 4 is the structural representation of the device that the another kind of adaptive audio of the embodiment of the present invention exports.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and together with embodiments of the present invention for explaining principle of the present invention.For purpose of clarity and simplification, when it may make theme of the present invention smudgy, illustrating in detail of known function and structure in device described herein will be omitted.
The fundamental purpose of the embodiment of the present invention is to provide the method for a kind of adaptive audio output, device, audio frequency transmitting terminal and system, ultimate principle is by the extending display identification data (ExtendedDisplayIdentificationData of audio frequency transmitting terminal according to audio interface receiving end, EDID) information judges its decoding whether supporting the audio format of audio frequency to be played, and automatically export decoded audio stream or source code according to judged result, user is made to carry out any operation setting, just can hear high-quality audio frequency, avoid user and switch the problem that output device all will carry out numerous and diverse setting at every turn, improve the experience that user uses.Just by several specific embodiment, technical scheme of the present invention is described in detail below.
Embodiments provide a kind of method that adaptive audio exports, see Fig. 1, comprising:
S101: judge whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if enter S102, otherwise enter S103;
S102: export described audio frequency to described audio interface receiving end, namely exports the source code of described audio frequency to described audio interface receiving end;
S103: described audio frequency is decoded, and export decoded voice data to described audio interface receiving end.
Namely the present invention is before sending audio frequency to be played to audio interface receiving end, by audio frequency transmitting terminal, first-selection judges whether audio interface receiving end supports the decoding of this audio format, determine it is export decoded audio stream or the source code of audio frequency according to judged result again, avoid user and switch the problem that output device (audio interface receiving end) all will carry out numerous and diverse setting at every turn, improve the experience that user uses.
Audio frequency transmitting terminal in the embodiment of the present invention can be various HDMI transmitting terminal, specifically can comprise intelligent television box, i.e. Set Top Box, and method of the present invention also can be applied in other terminal by certain those skilled in the art as required.
Audio interface receiving end in the embodiment of the present invention can be various HDMI receiving end, specifically can comprise television terminal, computer terminal and other display terminals.As long as this display terminal has HDMI, can be connected with other audio frequency transmitting terminal.
The step that described audio frequency is decoded is decoded to described audio frequency particular by soft demoder in the embodiment of the present invention.Certain those skilled in the art also can, according to the concrete setting of its present video transmitting terminal, adopt other decoding device to decode to audio frequency.
Step S101 in the embodiment of the present invention is specifically: audio frequency transmitting terminal is before sending audio frequency to be played to audio interface receiving end, first obtain the extending display identification data EDID information of described audio interface receiving end, and judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to EDID information, again furtherly, according to the audio format information the EDID information obtained from audio interface receiving end, audio frequency transmitting terminal specifically judges whether described audio interface receiving end supports the decoding of the audio format of described audio frequency, if supported, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and export decoded voice data to described audio interface receiving end.
Described EDID information in the embodiment of the present invention comprises: supplier information, maximum image size information, color configuration information, factory default confidence cease, the restricted information of frequency range, audio format and video format information.
The known EDID information of those skilled in the art comprises two parts, and basic EDID only has 128 bytes, also has the EDID of the expansion of 128 bytes.Front 128 namely basic EDID packets of information contain the restricted information etc. of supplier information, maximum image size information, color configuration information, factory default confidence breath, frequency range, then 128 EDID packets of information namely expanded contain the more detailed audio/video information be not described in basic EDID information.Specific to the present invention, the EDID information searching that namely those skilled in the art can expand according to latter 128 to concrete audio format information, i.e. the audio format supported of this audio interface receiving end.
The example that above-mentioned method of searching the audio format that audio interface receiving end is supported of being only used to better understand the present invention and doing is concrete, those skilled in the art also can search by other method the audio format that audio interface receiving end supports, such as by arranging list or other parameters in audio interface receiving end in advance, the audio format that this audio interface receiving end is supported is indicated by list or parameter, and after audio interface receiving end is connected with audio frequency transmitting terminal, this list or parameter are sent to audio frequency transmitting terminal, audio frequency transmitting terminal is before certain audio frequency of broadcasting, judge whether to decode to audio frequency according to this list or parameter again.
Fig. 2 is the process flow diagram of the method that the another kind of adaptive audio of the embodiment of the present invention exports, and below in conjunction with Fig. 2, mainly using intelligent television box as audio frequency transmitting terminal, TV carries out detailed explanation and explanation as audio interface receiving end to the present invention:
S201: intelligent television box connects TV by HDMI, has connected rear startup intelligent television box and TV;
S202: intelligent television box obtains the EDID information of TV, and resolves EDID information, parses the audio format information that TV is supported;
S203: intelligent television box selects the head of the audio-video document needing to play to resolve to user, obtain the audio coding of the audio-video document that will play;
S204: the form of the audio-video document needing to play selected by intelligent television box according to the EDID information of the TV of resolving and user, judge whether TV supports the decoding of this audio file;
S205: if then do not need to decode to audio file, directly audio file is exported to TV with source code, decoded by TV;
S206: if not, then decoded to audio file by soft demoder, and decoded audio file is exported to TV;
S207: TV starts displaying audio file.
The embodiment of the present invention additionally provides the device that adaptive audio exports, and see Fig. 3, this device is specifically arranged on audio frequency transmitting terminal, and this device specifically comprises: interconnective judging unit 31, decoding unit 32 and transmitting element 33;
Judging unit 31, for judging whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, triggers transmitting element 33, otherwise trigger decoding unit 32;
Decoding unit 32, for decoding to described audio frequency, triggers described transmitting element 33 after decoding;
Transmitting element 33, for exporting the source code of described audio frequency to described audio interface receiving end, or exports the decoded voice data of described decoding unit 32 to described audio interface receiving end.
As a preferred embodiment of the present invention, device of the present invention is also provided with acquiring unit 34, and specifically as shown in Figure 4, acquiring unit 34 of the present invention is connected with judging unit 31;
The present invention obtains the extending display identification data EDID information of described audio interface receiving end especially by acquiring unit 34, judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency by judging unit 31 according to described EDID information again, if, trigger described transmitting element 33, otherwise trigger described decoding unit 32.Further, according to the audio format information in the EDID information of audio interface receiving end, judging unit 31 of the present invention specifically judges whether described audio interface receiving end supports the decoding of the audio format of described audio frequency, if so, trigger described transmitting element 33, otherwise trigger described decoding unit 32.
Decoding unit 32 in the embodiment of the present invention is decoded to described audio frequency particular by soft demoder.
Described EDID information in the embodiment of the present invention specifically comprises: supplier information, maximum image size information, color configuration information, factory default confidence cease, the restricted information of frequency range, audio format and video format information.
Content in the device of the embodiment of the present invention can the related content of reference method part be understood, and does not repeat them here.
The embodiment of the present invention additionally provides a kind of audio frequency transmitting terminal, and this audio frequency transmitting terminal comprises above-mentioned device described in any one.
The embodiment of the present invention additionally provide a kind of adaptive audio export system, this system comprises interconnective audio frequency transmitting terminal and audio interface receiving end, audio frequency transmitting terminal and audio interface receiving end specific as follows:
Audio frequency transmitting terminal, judge whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and exports decoded voice data to described audio interface receiving end;
Audio interface receiving end receives the described audio frequency or decoded voice data that described audio frequency transmitting terminal sends.
As a preferred embodiment of the present invention, audio frequency transmitting terminal of the present invention specifically for, obtain the extending display identification data EDID information of described audio interface receiving end, and judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to described EDID information, if, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and export decoded voice data to described audio interface receiving end.
The method that adaptive audio provided by the invention exports, device, audio frequency transmitting terminal and system, following beneficial effect can be brought:
By audio frequency transmitting terminal, the present invention judges whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, and automatically export decoded audio stream or source code according to judged result, user is allowed to carry out any operation setting, just can hear high-quality audio frequency, avoid user and switch the problem that output device all will carry out numerous and diverse setting at every turn, improve the experience that user uses.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. a method for adaptive audio output, is characterized in that, comprising:
Judge whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and export decoded voice data to described audio interface receiving end.
2. method according to claim 1, is characterized in that, judges whether audio interface receiving end supports that the step of the decoding of the audio format of audio frequency to be played specifically comprises:
Obtain the extending display identification data EDID information of described audio interface receiving end, and judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to described EDID information.
3. method according to claim 2, is characterized in that, judges whether described audio interface receiving end supports that the step of the decoding of the audio format of described audio frequency specifically comprises according to described EDID information:
Judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to the audio format information in described EDID information.
4., according to the method in claim 1-3 described in any one, it is characterized in that,
Described audio interface receiving end comprises television terminal or computer terminal.
5. a device for adaptive audio output, is characterized in that, comprising:
Judging unit, for judging whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, triggers transmitting element, otherwise trigger decoding unit;
Described decoding unit, for decoding to described audio frequency, triggers described transmitting element after decoding;
Described transmitting element, for exporting described audio frequency to described audio interface receiving end, or exports the voice data after described decoding unit decodes to described audio interface receiving end.
6. device according to claim 5, is characterized in that, also comprises: acquiring unit;
Described acquiring unit, for obtaining the extending display identification data EDID information of described audio interface receiving end;
Described judging unit specifically for, judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to described EDID information, if so, trigger described transmitting element, otherwise trigger described decoding unit.
7. device according to claim 6, is characterized in that,
Described judging unit specifically for, judge whether described audio interface receiving end supports the decoding of described audio format according to the audio format information in described EDID information, if so, trigger described transmitting element, otherwise trigger described decoding unit.
8. an audio frequency transmitting terminal, is characterized in that, this audio frequency transmitting terminal comprises the device in claim 5 to claim 7 described in any one.
9. a system for adaptive audio output, is characterized in that, comprising:
Audio frequency transmitting terminal, for judging whether audio interface receiving end supports the decoding of the audio format of audio frequency to be played, if so, then described audio frequency is exported to described audio interface receiving end, otherwise described audio frequency is decoded, and exports decoded voice data to described audio interface receiving end;
Described audio interface receiving end, for receiving the described audio frequency or decoded voice data that described audio frequency transmitting terminal sends.
10. system according to claim 9, is characterized in that,
Described audio frequency transmitting terminal specifically for, obtain the extending display identification data EDID information of described audio interface receiving end, and judge whether described audio interface receiving end supports the decoding of the audio format of described audio frequency according to described EDID information, if, then export described audio frequency to described audio interface receiving end, otherwise described audio frequency is decoded, and exports decoded voice data to described audio interface receiving end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410402854.2A CN105374358A (en) | 2014-08-15 | 2014-08-15 | Adaptive audio output method, adaptive audio output device, audio transmitting end and adaptive audio output system |
| PCT/CN2014/093292 WO2015154496A1 (en) | 2014-08-15 | 2014-12-08 | Adaptive audio output method and apparatus, and audio sending end and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410402854.2A CN105374358A (en) | 2014-08-15 | 2014-08-15 | Adaptive audio output method, adaptive audio output device, audio transmitting end and adaptive audio output system |
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| CN105374358A true CN105374358A (en) | 2016-03-02 |
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| CN201410402854.2A Pending CN105374358A (en) | 2014-08-15 | 2014-08-15 | Adaptive audio output method, adaptive audio output device, audio transmitting end and adaptive audio output system |
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| WO (1) | WO2015154496A1 (en) |
Cited By (2)
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| CN106534203A (en) * | 2016-12-27 | 2017-03-22 | 努比亚技术有限公司 | Mobile terminal and communication method |
| CN111163276A (en) * | 2019-12-30 | 2020-05-15 | 深圳Tcl新技术有限公司 | Data transmission format determining method, device and system |
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| CN105632542B (en) * | 2015-12-23 | 2019-05-28 | 小米科技有限责任公司 | Audio frequency playing method and device |
| CN111883152A (en) * | 2020-06-23 | 2020-11-03 | 海信视像科技股份有限公司 | Audio signal processing method and electronic equipment |
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| WO2015154496A1 (en) | 2015-10-15 |
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Application publication date: 20160302 |