WO2015154496A1

WO2015154496A1 - Adaptive audio output method and apparatus, and audio sending end and system

Info

Publication number: WO2015154496A1
Application number: PCT/CN2014/093292
Authority: WO
Inventors: 张炜
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-08-15
Filing date: 2014-12-08
Publication date: 2015-10-15
Also published as: CN105374358A

Abstract

An adaptive audio output method and apparatus, and an audio sending end and system. The method comprises: judging, by an audio sending end, whether an audio receiving end supports the decoding of an audio format of an audio to be played (S101); if so, outputting the audio to the audio receiving end (S102); otherwise, decoding the audio and outputting the decoded audio data to the audio receiving end (S103). By judging, by the audio sending end, whether the audio receiving end supports the decoding of the audio format of the audio to be played, and automatically outputting a decoded audio stream or a source code according to a judgement result, a user can hear a high-quality audio without any operation and settings, thereby avoiding the problem that the user conducts complex settings when switching an output device every time, so that the usage experience of the user is improved.

Description

Method, device, audio transmitting end and system for adaptive audio output

Technical field

The present invention relates to the field of audio output technologies, and in particular, to a method, an apparatus, an audio transmitting end, and a system for adaptive audio output.

Background technique

With the improvement of living standards and the rapid development of multimedia technology, watching video or playing games using terminal devices has become more and more popular in people's lives. People pay more and more attention to the sensory quality of audio and video, especially the requirements for sound quality, stereo sound effects, etc., based on this requirement, many high-quality audio encoding formats, such as Dolby Digital format (DD, DD+), digital cinema system format and audio encoding data in advanced audio encoding format to meet people's requirements for audio effects.

Since the general high definition multimedia interface (HDMI) transmitter (eg, smart TV box, etc.) needs to connect to the HDMI receiver (eg, TV, computer, etc.) through HDMI to watch the video, the audio ultimately depends on The sound card on the HDMI receiver plays. However, usually these sound cards do not support the playback of some high-quality audio data. In order to play these high-definition video or large-scale games with high-quality audio data, it is necessary to configure some soft decoders through the HDMI transmitter to decode the audio data, or through The HDMI receiver configures the power amplifier device to decode high-quality audio data and output it through the power amplifier device. However, the related technologies for soft decoding or power amplifier device decoding can only be manually set, thereby causing unnecessary trouble to the user.

Summary of the invention

In view of the above analysis, the present invention is directed to a method, an apparatus, an audio transmitting end, and a system for adaptive audio output, which are used to solve the problem of inconvenience in the related art that the soft decoding and the power amplifier device are manually set to be decoded to the user.

In order to solve the above problems, the following technical solutions are adopted:

A method of adaptive audio output, comprising:

Determining whether the audio receiving end supports decoding of the audio format of the audio to be played, and if so, outputting the audio to the audio receiving end, otherwise decoding the audio, and outputting the decoded audio to the audio receiving end Audio data.

Optionally, the step of determining whether the audio receiving end supports decoding of the audio format of the audio to be played comprises:

Obtaining extended display identification data EDID information of the audio receiving end, and determining, according to the EDID information, whether the audio receiving end supports decoding of an audio format of the audio.

Optionally, the step of determining, according to the EDID information, whether the audio receiving end supports decoding of an audio format of the audio comprises:

Determining, according to the audio format information in the EDID information, whether the audio receiving end supports decoding of an audio format of the audio.

Optionally, the audio receiving end comprises a television terminal or a computer terminal.

An apparatus for adaptive audio output, comprising a determining unit, a decoding unit and a transmitting unit, wherein:

The determining unit is configured to: determine whether the audio receiving end supports decoding of the audio format of the audio to be played, and if yes, notify the sending unit to output the audio to the audio receiving end, otherwise notify the decoding unit to Decoding the audio;

The decoding unit is configured to: decode the audio, and notify the sending unit to output the decoded audio data to the audio receiving end after decoding;

The transmitting unit is configured to: output the audio to the audio receiving end, or output the audio data decoded by the decoding unit to the audio receiving end.

Optionally, the device further includes: an acquiring unit, wherein

The acquiring unit is configured to: obtain extended display identification data EDID information of the audio receiving end;

The determining unit is configured to determine whether the audio receiving end supports the to-be-played sound according to the following manner Decoding of the frequency audio format: determining whether the audio receiving end supports decoding of the audio format of the audio according to the EDID information.

Optionally, the determining unit is configured to determine, according to the EDID information, whether the audio receiving end supports decoding of an audio format of the audio according to the following manner: determining the audio receiving according to audio format information in the EDID information. Whether the end supports decoding of the audio format.

An audio transmitting end comprising any of the above adaptive audio output devices.

A system for adaptive audio output, comprising an audio transmitter and an audio receiver, wherein:

The audio transmitting end is configured to: determine whether the audio receiving end supports decoding of an audio format of the audio to be played, and if yes, output the audio to the audio receiving end, otherwise decode the audio, and The audio receiving end outputs the decoded audio data;

The audio receiving end is configured to: receive the audio or decoded audio data sent by the audio sending end.

Optionally, the audio sending end is configured to determine, according to the manner, whether the audio receiving end supports decoding of an audio format of the audio to be played: acquiring extended display identification data EDID information of the audio receiving end, and determining, according to the EDID information Whether the audio receiving end supports decoding of the audio format of the audio.

A computer program comprising program instructions that, when executed by an audio transmitting end, cause the audio transmitting end to perform any of the above methods of adaptive audio output.

A carrier carrying the computer program.

The beneficial effects of the technical solution of the present invention are as follows:

The technical solution of the present invention determines whether the audio receiving end supports decoding of the audio format of the audio to be played by the audio transmitting end, and automatically outputs the decoded audio stream or source code according to the judgment result, so that Users do not need to perform any operation settings, they can hear high-quality audio, avoiding the problem that users have to make complicated settings every time they switch output devices, which improves the user experience.

Other features and advantages of the invention will be set forth in the description in the description which follows. The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

BRIEF abstract

1 is a flowchart of a method for adaptive audio output according to an embodiment of the present invention;

2 is a flowchart of another method for adaptive audio output according to an embodiment of the present invention;

3 is a schematic structural diagram of an apparatus for adaptive audio output according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another apparatus for adaptive audio output according to an embodiment of the present invention.

Preferred embodiment of the invention

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, in which FIG. For the sake of clarity and simplicity, detailed descriptions of known functions and structures in the devices described herein will be omitted when they may obscure the subject matter of the present invention.

The main purpose of the embodiments of the present invention is to provide a method, an apparatus, an audio transmitting end, and a system for adaptive audio output. The basic principle is that the audio transmitting end displays Extended Display Identification Data (EDID) information according to the extension of the audio receiving end. Determine whether it supports the decoding of the audio format of the audio to be played, and automatically output the decoded audio stream or source code according to the judgment result, so that the user can hear high-quality audio without having to perform any operation setting, thereby avoiding the user each time. Switching the output device requires complicated settings, which improves the user experience. The technical solutions of the present invention will be described in detail below through several specific embodiments.

An embodiment of the present invention provides a method for adaptive audio output. Referring to FIG. 1, the method includes:

S101: determining whether the audio receiving end supports decoding of the audio format of the audio to be played, if it is, the process proceeds to S102; otherwise, the process proceeds to S103;

S102: output the audio to the audio receiving end, that is, output the source code of the audio to the audio receiving end;

S103: Decode the audio, and output the decoded audio data to the audio receiving end.

That is, before transmitting the audio to be played to the audio receiving end, the present invention firstly determines whether the audio receiving end supports decoding of the audio format through the audio transmitting end, and then determines whether to output the decoded audio stream or the audio source according to the judgment result, thereby avoiding Every time the user switches the output device (audio receiving end), the problem of complicated setting is required, and the user experience is improved.

The audio transmitting end in the embodiment of the present invention may be a variety of HDMI transmitting ends, and may specifically include a smart TV box, that is, a set top box. Of course, those skilled in the art may apply the method of the present invention to other terminals as needed.

The audio receiving end in the embodiment of the present invention may be various HDMI receiving ends, and may specifically include a television terminal, a computer terminal, and other display terminals. As long as the display terminal has an HDMI interface, it can be connected to other audio transmitting ends.

The step of decoding the audio in the embodiment of the present invention specifically decodes the audio through a soft decoder. Of course, those skilled in the art can also use other decoding devices to decode the audio according to the specific settings of the current audio transmitting end.

Step S101 in the embodiment of the present invention is specifically: before the audio transmitting end sends the audio to be played to the audio receiving end, the audio transmitting end first acquires the extended display identification data EDID information of the audio receiving end, and determines the audio receiving end according to the EDID information. Whether the decoding of the audio format of the audio is supported, and further, the audio transmitting end determines whether the audio receiving end supports the audio format of the audio according to the audio format information in the EDID information acquired from the audio receiving end. Decoding, if supported, outputting the audio to the audio receiving end, otherwise decoding the audio, and The decoded audio data is output to the audio receiving end.

The EDID information in the embodiment of the present invention includes: supplier information, maximum image size information, color setting information, vendor preset information, frequency range restriction information, audio format, and video format information.

Those skilled in the art will appreciate that the EDID information includes two parts, the basic EDID is only 128 bytes, and there is a 128-byte extended EDID. The first 128 bits of basic EDID information include vendor information, maximum image size information, color setting information, vendor pre-set information, frequency range restriction information, etc., and the 128-bit extended EDID information is included in the basic EDID. More detailed audio and video information is not described in the message. Specifically, the present invention can find specific audio format information, that is, an audio format supported by the audio receiving end, according to the latter 128-bit extended EDID information.

The above method for finding the audio format supported by the audio receiving end is only a specific example for better understanding of the present invention, and those skilled in the art can also find the audio format supported by the audio receiving end by other methods. For example, by setting a list or other parameters on the audio receiving end in advance, the audio format supported by the audio receiving end is indicated by a list or a parameter, and the list or parameter is sent to the audio after the audio receiving end is connected to the audio transmitting end. At the transmitting end, the audio transmitting end determines whether to decode the audio according to the list or parameters before playing an audio.

2 is a flowchart of another method for adaptive audio output according to an embodiment of the present invention. In the following, in conjunction with FIG. 2, a smart TV box is mainly used as an audio transmitting end, and a television is used as an audio receiving end to explain and explain the present invention in detail. :

S201: The smart TV box is connected to the TV through HDMI, and the smart TV box and the TV are activated after the connection is completed;

S202: The smart TV box obtains the EDID information of the television, parses the EDID information, and parses out the audio format information supported by the television;

S203: The smart TV box parses a header of the audio and video file that the user selects to play, and obtains an audio code of the audio and video file to be played;

S204: The smart TV box needs to play according to the EDID information of the parsed TV and the user selection The format of the audio and video file to determine whether the TV supports decoding of the audio file;

S205: If yes, the audio file does not need to be decoded, and the audio file is directly output to the television as a source code, and is decoded by the television;

S206: If no, the audio file is decoded by the soft decoder, and the decoded audio file is output to the television;

S207: The television starts playing an audio file.

The embodiment of the present invention further provides an apparatus for adaptive audio output. Referring to FIG. 3, the apparatus is specifically disposed on an audio transmitting end, and the apparatus specifically includes: a judging unit 31, a decoding unit 32, and a transmitting unit 33;

The determining unit 31 is configured to determine whether the audio receiving end supports the decoding of the audio format of the audio to be played, and if so, the transmitting unit 33 is triggered, otherwise the decoding unit 32 is triggered;

The decoding unit 32 is configured to decode the audio, and after the decoding, trigger the sending unit 33;

The sending unit 33 is configured to output the source code of the audio to the audio receiving end, or output the audio data decoded by the decoding unit 32 to the audio receiving end.

As a preferred embodiment of the present invention, the device of the present invention is further provided with an obtaining unit 34. Specifically, as shown in FIG. 4, the acquiring unit 34 of the present invention is connected to the determining unit 31;

The invention obtains the extended display identification data EDID information of the audio receiving end by the obtaining unit 34, and then determines, by the determining unit 31, whether the audio receiving end supports the decoding of the audio format of the audio according to the EDID information, and if so, The transmitting unit 33 is triggered, otherwise the decoding unit 32 is triggered. Further, the determining unit 31 of the present invention specifically determines whether the audio receiving end supports decoding of the audio format of the audio according to audio format information in the EDID information of the audio receiving end, and if so, triggers the transmitting unit 33 Otherwise, the decoding unit 32 is triggered.

The decoding unit 32 in the embodiment of the present invention specifically decodes the audio through a soft decoder.

The EDID information in the embodiment of the present invention specifically includes: vendor information, maximum image size information, color setting information, vendor preset information, frequency range restriction information, audio format, and video format information.

The content of the device in the embodiment of the present invention can be understood by referring to related content in the method part, and details are not described herein again.

An embodiment of the present invention further provides an audio transmitting end, where the audio transmitting end includes any one of the devices described above.

The embodiment of the invention further provides a system for adaptive audio output, the system comprising an audio transmitting end and an audio receiving end connected to each other, and the audio transmitting end and the audio receiving end are as follows:

The audio transmitting end determines whether the audio receiving end supports decoding of the audio format of the audio to be played, and if so, outputs the audio to the audio receiving end, otherwise the audio is decoded, and the audio receiving end is Outputting the decoded audio data;

The audio receiving end receives the audio or decoded audio data sent by the audio transmitting end.

As a preferred embodiment of the present invention, the audio transmitting end of the present invention is specifically configured to acquire extended display identification data (EDID) information of the audio receiving end, and determine, according to the EDID information, whether the audio receiving end supports the audio. Decoding of the audio format, if yes, outputting the audio to the audio receiving end, otherwise decoding the audio and outputting the decoded audio data to the audio receiving end.

The embodiment of the invention further discloses a computer program, comprising program instructions, when the program instruction is executed by the audio transmitting end, so that the audio transmitting end can perform the above method of adaptive audio output.

The embodiment of the invention also discloses a carrier carrying the computer program.

The method, device, audio transmitting end and system of the adaptive audio output provided by the invention can bring the following beneficial effects:

The invention determines whether the audio receiving end supports the decoding of the audio format of the audio to be played by the audio transmitting end, and automatically outputs the decoded audio stream or the source code according to the judgment result, so that the user can hear the high without having to perform any operation setting. The quality of the audio avoids the problem that the user has to make complicated settings every time the output device is switched, which improves the user experience.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Industrial applicability

The technical solution of the present invention determines whether the audio receiving end supports decoding of the audio format of the audio to be played by the audio transmitting end, and automatically outputs the decoded audio stream or source code according to the judgment result, so that the user can listen without any operation setting. To the high-quality audio, the problem of complicated setting of the user every time the output device is switched is avoided, and the user experience is improved. Therefore, the present invention has extremely strong industrial applicability.

Claims

A method of adaptive audio output, comprising:

Determining whether the audio receiving end supports decoding of the audio format of the audio to be played, and if so, outputting the audio to the audio receiving end, otherwise decoding the audio, and outputting the decoded audio to the audio receiving end Audio data.
The method of adaptive audio output according to claim 1, wherein the step of determining whether the audio receiving end supports decoding of the audio format of the audio to be played comprises:

Obtaining extended display identification data EDID information of the audio receiving end, and determining, according to the EDID information, whether the audio receiving end supports decoding of an audio format of the audio.
The method of adaptive audio output according to claim 2, wherein the step of determining, according to the EDID information, whether the audio receiving end supports decoding of an audio format of the audio comprises:

Determining, according to the audio format information in the EDID information, whether the audio receiving end supports decoding of an audio format of the audio.
A method of adaptive audio output according to any one of claims 1 to 3, wherein

The audio receiving end includes a television terminal or a computer terminal.
An apparatus for adaptive audio output, comprising a determining unit, a decoding unit and a transmitting unit, wherein:

The determining unit is configured to: determine whether the audio receiving end supports decoding of the audio format of the audio to be played, and if yes, notify the sending unit to output the audio to the audio receiving end, otherwise notify the decoding unit to Decoding the audio;

The decoding unit is configured to: decode the audio, and notify the sending unit to output the decoded audio data to the audio receiving end after decoding;

The transmitting unit is configured to: output the audio to the audio receiving end, or output the audio data decoded by the decoding unit to the audio receiving end.
The apparatus for adaptive audio output according to claim 5, further comprising: an acquisition unit, wherein;

The acquiring unit is configured to: obtain extended display identification data EDID information of the audio receiving end;

The determining unit is configured to determine whether the audio receiving end supports decoding of the audio format of the audio to be played according to the following manner: determining, according to the EDID information, whether the audio receiving end supports decoding of the audio format of the audio.
The apparatus for adaptive audio output according to claim 6, wherein said determining unit is configured to determine, according to said EDID information, whether said audio receiving end supports decoding of an audio format of said audio according to said EDID information: The audio format information in the EDID information determines whether the audio receiving end supports decoding of the audio format.
An audio transmitting end comprising the apparatus of any one of claims 5-7.
A system for adaptive audio output, comprising an audio transmitter and an audio receiver, wherein:

The audio transmitting end is configured to: determine whether the audio receiving end supports decoding of an audio format of the audio to be played, and if yes, output the audio to the audio receiving end, otherwise decode the audio, and The audio receiving end outputs the decoded audio data;

The audio receiving end is configured to: receive the audio or decoded audio data sent by the audio sending end.
A system for adaptive audio output according to claim 9, wherein

The audio transmitting end is configured to determine whether the audio receiving end supports decoding of the audio format of the audio to be played as follows: acquiring extended display identification data EDID information of the audio receiving end, and determining the audio receiving according to the EDID information Whether the end supports decoding of the audio format of the audio.
A computer program comprising program instructions that, when executed by an audio transmitting end, cause the audio transmitting end to perform the method of adaptive audio output according to any one of claims 1-4.
A carrier carrying the computer program of claim 11.