CN104053047A - Audio output adjustment device and method - Google Patents
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Abstract
The invention relates to an audio output adjustment method and device. The method includes the following steps that the decoding capacity of a peripheral unit connected with an audio and video terminal is detected and acquired; audio information of a current program is detected, whether the current program has auxiliary audio or not is judged, and if the current program has the auxiliary audio, the mixing relation between the type of the auxiliary audio and a main video is acquired; if the auxiliary audio and main audio are unmixing audio, the main audio and the auxiliary audio are processed to the same type capable of being supported by the decoding capacity of the peripheral unit according to the decoding capacity of the peripheral unit; the processed main audio and the auxiliary audio are mixed to form mixed audio, and the mixed audio is output to the peripheral unit. According to the method and device, a user does not need to perform any setting, the method and device are easy, convenient and fast to operate, the situation that because of incorrect operation of the user, no complete audio is output is avoided, and therefore the method and device are very convenient for the user to use, and good user experience is brought to the user.
Description
Technical field
The present invention relates to audio frequency and video field, relate in particular to a kind of audio frequency output adjusting device and method of adjustment.
Background technology
At present, the audio frequency of broadcast TV program is processed more and more abundanter, more and more hommization, according to the auxiliary audio frequency of blind person's special setting also more and more application, and the ancillary equipment (sound equipment of at present audio frequency being processed, power amplifiers etc.) also more and more advanced, various types of peripheral devices is brought extraordinary auditory effect to people.But because function increases, controlling of Set Top Box become increasingly complex, control system is more and more huger.
But, between different programs due to the setting of audio frequency difference to some extent, except main audio, may there is auxiliary audio frequency, also there is multiple relation in auxiliary audio frequency and main audio type and mixed relationship, and ancillary equipment is also different to the audio decoder ability of different programs, how according to the audio frequency of program, adjusts the output of audio frequency, meet to greatest extent client's audio visual effect, this is also in Digital Television revolution, to need to meet the problem that user's needs solve.
Existing method needs user that the output mode of audio frequency is set in audio-video terminal (Set Top Box or intelligent television) software, and for example, passthrough transparent transmission or downmix audio conversion are changed to PCM formatted output.And for existing in the situation of auxiliary audio frequency, may there is the situation of two-way DOLBY audio frequency or a road DOLBY audio frequency one road pcm audio, and current existing audio-video terminal mostly can not support two-way DOLBY audio frequency to export or the output of a road DOLBY audio frequency one road pcm audio simultaneously, this needs Set Top Box to do some special processing, because user does not likely understand the principle of setting, when having, misoperation causes not having the situation of complete audio frequency output, and user needs constantly switch and arrange in different programs, operate very loaded down with trivial details, easily make mistakes, this has just greatly affected user and has used and experience.
Summary of the invention
In view of this, be necessary that audio frequency output function is set is loaded down with trivial details for above-mentioned, affect the problem that user uses and experiences, a kind of audio frequency output adjusting device is provided.
In addition, also provide a kind of audio frequency output adjusting method.
Audio frequency output adjusting method provided by the invention, comprises the steps:
S10: the decoding capability that detects and obtain the ancillary equipment being connected with audio-video terminal;
S20: detect the audio-frequency information of current program, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video;
S30: if auxiliary audio frequency and main audio are mixed audio not, according to the decoding capability of ancillary equipment, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported;
S40: main audio and auxiliary audio frequency after processing are mixed, form mixed audio and output to ancillary equipment.
Audio frequency output adjusting device provided by the invention, comprising:
Ancillary equipment detecting unit, detects and obtains the decoding capability of the ancillary equipment being connected with audio-video terminal;
Audio detection unit, detects the audio-frequency information of current program, judges whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video;
Audio treatment unit, if auxiliary audio frequency and main audio are mixed audio not, according to the decoding capability of ancillary equipment, is processed into by main audio and auxiliary audio frequency the same type that ancillary equipment decoding capability can be supported;
Audio mix unit, mixes main audio and auxiliary audio frequency after processing, forms mixed audio and outputs to ancillary equipment.
Audio frequency output adjusting method of the present invention and adjusting device, obtain the decoding capability of ancillary equipment and automatically detect in program audio whether have supplementary, if exist auxiliary audio frequency according to the type of auxiliary audio frequency and with the mixed relationship of main video, at auxiliary audio frequency and main audio, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported during for mixed audio not, then mix, automatically be adjusted into and can be supported by ancillary equipment and mixed audio that output effect is best, and audio frequency outputs to ancillary equipment, do not need user to carry out any setting, simple and convenient, avoid user misoperation to cause not having the situation of complete audio frequency output, thereby greatly convenient for users, to user, bring good user to experience.
Accompanying drawing explanation
Fig. 1 is the flow chart of an audio frequency output adjusting method in embodiment;
Fig. 2 is the structure chart of an audio frequency output adjusting device in embodiment.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the flow chart of an audio frequency output adjusting method in embodiment.This method of adjustment comprises the steps:
S10: the decoding capability that detects and obtain the ancillary equipment being connected with audio-video terminal.
In audio frequency output procedure, audio frequency output effect is directly related with the decoding capability of ancillary equipment, if the audio types of output is the type that ancillary equipment decoding capability can be supported, can reach best output effect.For example, if output is DOLBY (Doby) audio frequency, ancillary equipment decoding capability is supported DOLBY decoding, can export best output effect; If ancillary equipment decoding capability is not supported DOLBY decoding, only support PCM decoding, if continuation output is DOLBY audio frequency, can affect audio frequency effect.Therefore when ancillary equipment connects audio-video terminal, obtain the decoding capability of ancillary equipment, the decoding capability of ancillary equipment is understood, be convenient to adjust the type of audio frequency output.
In this embodiment, the decoding capability of ancillary equipment comprises: support decoding DOLBY audio types and PCM (pulse-code modulation) audio types or only support decoding pcm audio type.
S20: detect the audio-frequency information of current program, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video.
When audio-video terminal broadcast program, because the audio-frequency information of different programs exists difference, some programs have auxiliary audio frequency, some programs do not have auxiliary audio frequency, auxiliary audio frequency and main audio type and mixed relationship also may be different, need to carry out different audio frequency output to different auxiliary audio frequencies and adjust, with self adaptation ancillary equipment, to reach best audio frequency output effect.
In this embodiment, this step S20 is specially: respectively to auxiliary audio frequency arrange detect sign, to main audio type main audio type identification is set, mixed relationship that auxiliary audio frequency type is arranged to auxiliary audio frequency type identification and main audio and auxiliary audio frequency arranges mixed relationship and identifies.
By detecting sign, main audio type identification, auxiliary audio frequency type identification and mixed relationship sign, insert in the audio-frequency information of program.
Detect and identify according to the detection sign in program audio information, main audio type identification, auxiliary audio frequency type identification and mixed relationship, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video.
Concrete, auxiliary audio frequency is arranged and detects sign, if there is auxiliary audio frequency, be set to the first detection sign, if do not exist auxiliary audio frequency to be set to the second detection sign.Main audio type is arranged to main audio type identification, if main audio is DOLBY audio types, be set to the first main audio type identification, if pcm audio type is set to the second main audio type identification.Auxiliary audio frequency type is arranged to auxiliary audio frequency type identification, if auxiliary audio frequency is DOLBY audio types, be set to the first auxiliary audio frequency type identification, if pcm audio type is set to the second auxiliary audio frequency type identification.The mixed relationship of main audio and auxiliary audio frequency is arranged to mixed relationship sign, if with main audio be mixed audio, be set to mixed relationship sign, if with main audio for mixed audio not (be both independences separately, be independent audio), be set to not mixed relationship sign.
For example: a common program has one or more main audio, such as we are watching CCTV1, current main audio has CHINESE, ENGLISH, FRENCH, tetra-kinds of audio formats corresponding to main audio of GERMAN to be respectively DOLBY audio frequency, pcm audio, DOLBY audio frequency and DOLBY audio frequency, and user can be switched main audio when watching program.Except main audio, likely TV programme is watched for the ease of blind person by operator, to first three, plant main audio and increase by three kinds of corresponding auxiliary audio frequencies, be respectively CHINESE-AD, ENGLISH-AD, FRENCH-AD, these three kinds of auxiliary audio frequencies also exist in program audio, and their audio format is DOLBY audio frequency, pcm audio and DOLBY audio frequency.With the mixed relationship of main audio separately respectively: mix main audio, not mixed audio, mixed audio not.Suppose and exist auxiliary audio frequency to be designated 1, do not exist and be designated 0; The type of main audio is that PCM is denoted as 1, DOLBY and is denoted as 2; The type of same auxiliary audio frequency is that PCM is denoted as 1, and Doby audio frequency is denoted as 2, and auxiliary audio frequency and main audio are that mixed audio is denoted as 1, do not mix and are denoted as 2, obtain the data structure of: CHINESE:1,2,2,1; ENGLISH:1,1,1,2; FRENCH:1,2,2,2; GERMAN:0,2,0,2.Data structure is inserted in program audio information, and the data structure detecting in program audio information can be determined.
Further, if step S20 also comprises: if do not there is auxiliary audio frequency, the audio types of main audio is processed into the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.To main audio according to the adaptive adjustment of ancillary equipment decoding capability output.For example, if main audio is DOLBY audio types, if ancillary equipment is only supported pcm audio type,, by the adaptive pcm audio type that is treated to of main audio, ancillary equipment can be supported, improve output audio effect.
S30: if auxiliary audio frequency and main audio are mixed audio not, according to the decoding capability of ancillary equipment, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported.
After detecting, if having auxiliary audio frequency and do not mix with main audio, if auxiliary audio frequency and main audio are exported separately, can affect audio frequency output effect, auxiliary audio frequency need to be mixed with main audio.Because auxiliary audio frequency and main audio type may be different, first auxiliary audio frequency and main audio to be treated to same type, can be supported by the decoding capability of ancillary equipment again simultaneously.
In this embodiment, step S30 is specially:
If ancillary equipment support decoding DOLBY audio types and pcm audio type, if main audio is pcm audio type, auxiliary audio frequency is DOLBY audio types, auxiliary audio frequency is treated to pcm audio type, if main audio is DOLBY audio types, main audio and auxiliary audio frequency are all processed into pcm audio type (audio-video terminal is not supported two-way DOLBY audio frequency or a road DOLBY audio frequency one road pcm audio mostly);
If ancillary equipment is only supported the pcm audio type of decoding, main audio and auxiliary audio frequency are all processed into pcm audio type.
In addition, this step S30 also comprises: if auxiliary audio frequency and main audio are mixed audio, mixed audio is processed into the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.So that being adjusted into, mixed audio can adapt to the type that ancillary equipment is supported.
S40: main audio and auxiliary audio frequency after processing are mixed, form mixed audio and output to ancillary equipment.
After the audio types of main audio and auxiliary audio frequency is processed, main audio and auxiliary audio frequency after processing are mixed, form mixed audio and output to again ancillary equipment, because ancillary equipment can be good at supporting decoding, thereby make the audio frequency output of program reach best effect.
For example, what suppose access at present is A ancillary equipment, supports decoding DOLBY audio types and pcm audio type.
When user is switched to CHINESE audio frequency, now main audio and auxiliary audio frequency are DOLBY audio frequency and are mixed audios, the optimum audio frequency way of output is to mix the directly passthrough transparent transmission output of DOLBY audio frequency, so output DOLBY audio frequency is optimum.
When user is switched to ENGLISH audio frequency, now main audio and auxiliary audio frequency are pcm audio and are independent audio frequency, optimum mode is that independent main audio and auxiliary audio frequency are mixed and be set to PCM output, so output pcm audio is optimum.
When user is switched to FRENCH audio frequency, current main audio and auxiliary audio frequency are all DOLBY audio frequency and independent audio frequency, passthorugh transparent transmission when cannot process two-way DOLBY audio frequency due to part audio-video terminal, do not support audio frequency passthrough transparent transmission one road audio frequency dowmnix in Jiang Yi road to become pcm audio yet, therefore the equal downmix of main audio and auxiliary audio frequency can only be become to pcm audio, then two-way audio is mixed to output pcm audio, so output pcm audio is optimum.
What suppose access at present is B ancillary equipment, only supports pcm audio type.
Because B ancillary equipment is only supported the audio decoder form of PCM, so no matter which kind of main audio user is switched to, all need main audio to become pcm audio with auxiliary audio frequency downmix, and by main audio and auxiliary audio frequency mix output (pcm audio type hybrid audio frequency or do not exist auxiliary audio frequency do not need process) becomes pcm audio, so output pcm audio is optimum.
In addition,, because auxiliary audio frequency arranges for special personage, for making user can independently select whether use auxiliary audio frequency, the method also comprises: auxiliary audio frequency switching function is set, so that user opens or close auxiliary audio frequency as required.If user has closed auxiliary audio frequency, according to the pattern that there is no auxiliary audio frequency, remove to process main audio.
This audio frequency output adjusting method, obtain the decoding capability of ancillary equipment and automatically detect in program audio whether have supplementary, if exist auxiliary audio frequency according to the type of auxiliary audio frequency and with the mixed relationship of main video, at auxiliary audio frequency and main audio, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported during for mixed audio not, then mix, automatically be adjusted into and can be supported by ancillary equipment and mixed audio that output effect is best, and audio frequency outputs to ancillary equipment, do not need user to carry out any setting, simple and convenient, avoid user misoperation to cause not having the situation of complete audio frequency output, thereby greatly convenient for users, to user, bring good user to experience.
Meanwhile, the present invention also provides a kind of audio frequency output adjusting device.As shown in Figure 2, this audio frequency output adjusting device comprises:
Ancillary equipment detecting unit 100, detects and obtains the decoding capability of the ancillary equipment being connected with audio-video terminal.
In audio frequency output procedure, audio frequency output effect is directly related with the decoding capability of ancillary equipment, if the audio types of output is the type that ancillary equipment decoding capability can be supported, can reach best output effect.For example, if output is DOLBY (Doby) audio frequency, ancillary equipment decoding capability is supported DOLBY decoding, can export best output effect; If ancillary equipment decoding capability is not supported DOLBY decoding, only support PCM decoding, if continuation output is DOLBY audio frequency, can affect audio frequency effect.Therefore when ancillary equipment connects audio-video terminal, ancillary equipment detecting unit 100 will obtain the decoding capability of ancillary equipment, and the decoding capability of ancillary equipment is understood, be convenient to adjust the type of audio frequency output.
In this embodiment, the decoding capability of ancillary equipment comprises: support decoding DOLBY audio types and PCM (pulse-code modulation) audio types or only support decoding pcm audio type.
Audio detection unit 200, detects the audio-frequency information of current program, judges whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video.
When audio-video terminal broadcast program, because the audio-frequency information of different programs exists difference, some programs have auxiliary audio frequency, some programs do not have auxiliary audio frequency, auxiliary audio frequency and main audio type and mixed relationship also may be different, need to carry out different audio frequency output to different auxiliary audio frequencies and adjust, with self adaptation ancillary equipment, to reach best audio frequency output effect.
In this embodiment, audio detection unit 200 arranges and detects sign auxiliary audio frequency respectively, main audio type is arranged to main audio type identification, the mixed relationship that auxiliary audio frequency type is arranged to auxiliary audio frequency type identification and main audio and auxiliary audio frequency arranges mixed relationship sign, to detect sign, main audio type identification, auxiliary audio frequency type identification and mixed relationship sign are inserted in the audio-frequency information of program, detect and identify according to the detection in program audio information, main audio type identification, auxiliary audio frequency type identification and mixed relationship sign, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video.
Concrete, 200 pairs of audio detection unit auxiliary audio frequency arranges and detects sign, if there is auxiliary audio frequency, is set to the first detection sign, if do not exist auxiliary audio frequency to be set to the second detection sign.200 pairs of audio detection unit main audio type arranges main audio type identification, if main audio is DOLBY audio types, is set to the first main audio type identification, if pcm audio type is set to the second main audio type identification.200 pairs of audio detection unit auxiliary audio frequency type arranges auxiliary audio frequency type identification, if auxiliary audio frequency is DOLBY audio types, is set to the first auxiliary audio frequency type identification, if pcm audio type is set to the second auxiliary audio frequency type identification.The mixed relationship of 200 pairs of audio detection unit main audio and auxiliary audio frequency arranges mixed relationship sign, if with main audio be mixed audio, be set to mixed relationship sign, if with main audio for mixed audio not (be that both are independent separately, be independent audio), be set to not mixed relationship sign.
For example: a common program has one or more main audio, such as we are watching CCTV1, current main audio has CHINESE, ENGLISH, FRENCH, tetra-kinds of audio formats corresponding to main audio of GERMAN to be respectively DOLBY audio frequency, pcm audio, DOLBY audio frequency and DOLBY audio frequency, and user can be switched main audio when watching program.Except main audio, likely TV programme is watched for the ease of blind person by operator, to first three, plant main audio and increase by three kinds of corresponding auxiliary audio frequencies, be respectively CHINESE-AD, ENGLISH-AD, FRENCH-AD, these three kinds of auxiliary audio frequencies also exist in program audio, and their audio format is DOLBY audio frequency, pcm audio and DOLBY audio frequency.With the mixed relationship of main audio separately respectively: mix main audio, not mixed audio, mixed audio not.Suppose and exist auxiliary audio frequency to be designated 1, do not exist and be designated 0; The type of main audio is that PCM is denoted as 1, DOLBY and is denoted as 2; The type of same auxiliary audio frequency is that PCM is denoted as 1, and Doby audio frequency is denoted as 2, and auxiliary audio frequency and main audio are that mixed audio is denoted as 1, do not mix and are denoted as 2, obtain the data structure of: CHINESE:1,2,2,1; ENGLISH:1,1,1,2; FRENCH:1,2,2,2; GERMAN:0,2,0,2.Audio detection unit 200 is inserted into data structure in program audio information, and the data structure detecting in program audio information can be determined.
Audio treatment unit 300, if auxiliary audio frequency and main audio are mixed audio not, according to the decoding capability of ancillary equipment, is processed into by main audio and auxiliary audio frequency the same type that ancillary equipment decoding capability can be supported.
After detecting, if having auxiliary audio frequency and do not mix with main audio, if auxiliary audio frequency and main audio are exported separately, can affect audio frequency output effect, auxiliary audio frequency need to be mixed with main audio.Because auxiliary audio frequency and main audio type may be different, first audio treatment unit 300 will be treated to same type by auxiliary audio frequency and main audio, can be supported by the decoding capability of ancillary equipment again simultaneously.
In this embodiment, if ancillary equipment support decoding DOLBY audio types and pcm audio type, if main audio is pcm audio type, auxiliary audio frequency is DOLBY audio types, 300 of audio treatment units are treated to pcm audio type by auxiliary audio frequency, if main audio is DOLBY audio types, 300 of audio treatment units are all processed into pcm audio type (audio-video terminal is not supported two-way DOLBY audio frequency or a road DOLBY audio frequency one road pcm audio mostly) by main audio and auxiliary audio frequency;
If ancillary equipment is only supported the pcm audio type of decoding, 300 of audio treatment units are all processed into pcm audio type by main audio and auxiliary audio frequency.
Further, if auxiliary audio frequency and main audio are mixed audio, 300 of audio treatment units are processed into by mixed audio the type that ancillary equipment decoding capability can be supported, output to ancillary equipment.So that being adjusted into, mixed audio can adapt to the type that ancillary equipment is supported.
In addition,, if do not have auxiliary audio frequency, 300 of the audio treatment units audio types by main audio is processed into the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.Audio treatment unit 300, to main audio according to the adaptive adjustment of ancillary equipment decoding capability output.For example, if main audio is DOLBY audio types, if ancillary equipment is only supported pcm audio type,, by the adaptive pcm audio type that is treated to of main audio, ancillary equipment can be supported, improve output audio effect.
Audio mix unit 400, mixes main audio and auxiliary audio frequency after processing, forms mixed audio and outputs to ancillary equipment.
After the audio types of main audio and auxiliary audio frequency is processed, audio mix unit 400 mixes main audio and auxiliary audio frequency after processing, form mixed audio and output to again ancillary equipment, because ancillary equipment can be good at supporting decoding, thereby make the audio frequency output of program reach best effect.
For example, what suppose access at present is A ancillary equipment, supports decoding DOLBY audio types and pcm audio type.
When user is switched to CHINESE audio frequency, now main audio and auxiliary audio frequency are DOLBY audio frequency and are mixed audios, the optimum audio frequency way of output is to mix the directly passthrough transparent transmission output of DOLBY audio frequency, so output DOLBY audio frequency is optimum.
When user is switched to ENGLISH audio frequency, now main audio and auxiliary audio frequency are pcm audio and are independent audio frequency, optimum mode is that independent main audio and auxiliary audio frequency are mixed and be set to PCM output, so output pcm audio is optimum.
When user is switched to FRENCH audio frequency, current main audio and auxiliary audio frequency are all DOLBY audio frequency and independent audio frequency, passthorugh transparent transmission when cannot process two-way DOLBY audio frequency due to part audio-video terminal, do not support audio frequency passthrough transparent transmission one road audio frequency dowmnix in Jiang Yi road to become pcm audio yet, therefore the equal downmix of main audio and auxiliary audio frequency can only be become to pcm audio, then two-way audio is mixed to output pcm audio, so output pcm audio is optimum.
What suppose access at present is B ancillary equipment, only supports pcm audio type.
Because B ancillary equipment is only supported the audio decoder form of PCM, so no matter which kind of main audio user is switched to, all need main audio to become pcm audio with auxiliary audio frequency downmix, and by main audio and auxiliary audio frequency mix output (pcm audio type hybrid audio frequency or do not exist auxiliary audio frequency do not need process) becomes pcm audio, so output pcm audio is optimum.
In addition, because auxiliary audio frequency arranges for special personage, for making user can independently select whether to use auxiliary audio frequency, this system also comprises: auxiliary audio frequency switch element, be used for arranging auxiliary audio frequency switching function, so that user opens or close auxiliary audio frequency as required.If user has closed auxiliary audio frequency, according to the pattern that there is no auxiliary audio frequency, remove to process main audio.
This audio frequency output adjusting device, obtain the decoding capability of ancillary equipment and automatically detect in program audio whether have supplementary, if exist auxiliary audio frequency according to the type of auxiliary audio frequency and with the mixed relationship of main video, at auxiliary audio frequency and main audio, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported during for mixed audio not, then mix, automatically be adjusted into and can be supported by ancillary equipment and mixed audio that output effect is best, and audio frequency outputs to ancillary equipment, do not need user to carry out any setting, simple and convenient, avoid user misoperation to cause not having the situation of complete audio frequency output, thereby greatly convenient for users, to user, bring good user to experience.
Audio frequency output adjusting method of the present invention and adjusting device, obtain the decoding capability of ancillary equipment and automatically detect in program audio whether have supplementary, if exist auxiliary audio frequency according to the type of auxiliary audio frequency and with the mixed relationship of main video, at auxiliary audio frequency and main audio, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported during for mixed audio not, then mix, automatically be adjusted into and can be supported by ancillary equipment and mixed audio that output effect is best, and audio frequency outputs to ancillary equipment, do not need user to carry out any setting, simple and convenient, avoid user misoperation to cause not having the situation of complete audio frequency output, thereby greatly convenient for users, to user, bring good user to experience.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an audio frequency output adjusting method, is characterized in that, comprises the steps:
S10: the decoding capability that detects and obtain the ancillary equipment being connected with audio-video terminal;
S20: detect the audio-frequency information of current program, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video;
S30: if auxiliary audio frequency and main audio are mixed audio not, according to the decoding capability of ancillary equipment, main audio and auxiliary audio frequency are processed into the same type that ancillary equipment decoding capability can be supported;
S40: main audio and auxiliary audio frequency after processing are mixed, form mixed audio and output to ancillary equipment.
2. audio frequency output adjusting method according to claim 1, is characterized in that, described step S20 is specially:
Respectively to auxiliary audio frequency arrange detect sign, to main audio type main audio type identification is set, mixed relationship that auxiliary audio frequency type is arranged to auxiliary audio frequency type identification and main audio and auxiliary audio frequency arranges mixed relationship and identifies;
By detecting sign, main audio type identification, auxiliary audio frequency type identification and mixed relationship sign, insert in the audio-frequency information of program;
Detect and identify according to the detection sign in program audio information, main audio type identification, auxiliary audio frequency type identification and mixed relationship, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video.
3. audio frequency output adjusting method according to claim 1, is characterized in that, described step S20 also comprises: if do not have auxiliary audio frequency, the audio types of main audio is processed into the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.
4. audio frequency output adjusting method according to claim 1, is characterized in that, described step S30 is specially:
If ancillary equipment support decoding DOLBY audio types and pcm audio type, if main audio is pcm audio type, auxiliary audio frequency is DOLBY audio types, auxiliary audio frequency is treated to pcm audio type, if main audio is DOLBY audio types, main audio and auxiliary audio frequency are all processed into pcm audio type;
If ancillary equipment is only supported the pcm audio type of decoding, main audio and auxiliary audio frequency are all processed into pcm audio type.
5. audio frequency output adjusting method according to claim 1, it is characterized in that, described step S30 also comprises: if auxiliary audio frequency and main audio are mixed audio, mixed audio is processed into the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.
6. an audio frequency output adjusting device, is characterized in that, comprising:
Ancillary equipment detecting unit, detects and obtains the decoding capability of the ancillary equipment being connected with audio-video terminal;
Audio detection unit, detects the audio-frequency information of current program, judges whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video;
Audio treatment unit, if auxiliary audio frequency and main audio are mixed audio not, according to the decoding capability of ancillary equipment, is processed into by main audio and auxiliary audio frequency the same type that ancillary equipment decoding capability can be supported;
Audio mix unit, mixes main audio and auxiliary audio frequency after processing, forms mixed audio and outputs to ancillary equipment.
7. audio frequency according to claim 1 is exported adjusting device, it is characterized in that, described audio detection unit arranges and detects sign auxiliary audio frequency respectively, main audio type is arranged to main audio type identification, the mixed relationship that auxiliary audio frequency type is arranged to auxiliary audio frequency type identification and main audio and auxiliary audio frequency arranges mixed relationship sign, to detect sign, main audio type identification, auxiliary audio frequency type identification and mixed relationship sign are inserted in the audio-frequency information of program, detect and identify according to the detection in program audio information, main audio type identification, auxiliary audio frequency type identification and mixed relationship sign, judge whether current program has auxiliary audio frequency, if there is auxiliary audio frequency, obtain auxiliary audio frequency type and with the mixed relationship of main video.
8. audio frequency output adjusting device according to claim 1, is characterized in that, if do not have auxiliary audio frequency, described audio treatment unit is processed into by the audio types of main audio the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.
9. audio frequency according to claim 1 is exported adjusting device, it is characterized in that, if ancillary equipment support decoding DOLBY audio types and pcm audio type, if main audio is pcm audio type, auxiliary audio frequency is DOLBY audio types, described audio treatment unit is treated to auxiliary audio frequency pcm audio type, if main audio is DOLBY audio types, described audio treatment unit is all processed into pcm audio type by main audio and auxiliary audio frequency;
If ancillary equipment is only supported the pcm audio type of decoding, described audio treatment unit is all processed into pcm audio type by main audio and auxiliary audio frequency.
10. audio frequency according to claim 1 is exported adjusting device, it is characterized in that, if auxiliary audio frequency and main audio are mixed audio, described audio treatment unit is processed into mixed audio the type that ancillary equipment decoding capability can be supported, outputs to ancillary equipment.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828272A (en) * | 2016-04-28 | 2016-08-03 | 乐视控股（北京）有限公司 | Audio signal processing method and apparatus |
| CN106331846A (en) * | 2016-08-17 | 2017-01-11 | 青岛海信电器股份有限公司 | Audio transmission method and apparatus |
| CN107635145A (en) * | 2016-07-19 | 2018-01-26 | 中国电信股份有限公司 | Audio self-adaptation plays and control method and system, set top box and playback terminal |
| CN110704012A (en) * | 2019-09-29 | 2020-01-17 | 百度在线网络技术（北京）有限公司 | Audio data processing method and device, electronic equipment and medium |
| WO2022048371A1 (en) * | 2020-09-01 | 2022-03-10 | 华为技术有限公司 | Cross-device audio playing method, mobile terminal, electronic device and storage medium |
| CN114245036A (en) * | 2021-12-21 | 2022-03-25 | 北京达佳互联信息技术有限公司 | Video production method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828272A (en) * | 2016-04-28 | 2016-08-03 | 乐视控股（北京）有限公司 | Audio signal processing method and apparatus |
| CN107635145A (en) * | 2016-07-19 | 2018-01-26 | 中国电信股份有限公司 | Audio self-adaptation plays and control method and system, set top box and playback terminal |
| CN106331846A (en) * | 2016-08-17 | 2017-01-11 | 青岛海信电器股份有限公司 | Audio transmission method and apparatus |
| CN106331846B (en) * | 2016-08-17 | 2019-04-12 | 青岛海信电器股份有限公司 | The method and device of audio transparent transmission |
| CN110704012A (en) * | 2019-09-29 | 2020-01-17 | 百度在线网络技术（北京）有限公司 | Audio data processing method and device, electronic equipment and medium |
| WO2022048371A1 (en) * | 2020-09-01 | 2022-03-10 | 华为技术有限公司 | Cross-device audio playing method, mobile terminal, electronic device and storage medium |
| CN114205336A (en) * | 2020-09-01 | 2022-03-18 | 华为技术有限公司 | Cross-device audio playing method, mobile terminal, electronic device and storage medium |
| CN114245036A (en) * | 2021-12-21 | 2022-03-25 | 北京达佳互联信息技术有限公司 | Video production method and device |
| CN114245036B (en) * | 2021-12-21 | 2024-03-12 | 北京达佳互联信息技术有限公司 | Video production method and device |
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