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WO2015154496A1 - Procédé et appareil de sortie audio adaptative, extrémité d'envoi audio et système - Google Patents

Procédé et appareil de sortie audio adaptative, extrémité d'envoi audio et système Download PDF

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Publication number
WO2015154496A1
WO2015154496A1 PCT/CN2014/093292 CN2014093292W WO2015154496A1 WO 2015154496 A1 WO2015154496 A1 WO 2015154496A1 CN 2014093292 W CN2014093292 W CN 2014093292W WO 2015154496 A1 WO2015154496 A1 WO 2015154496A1
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WO
WIPO (PCT)
Prior art keywords
audio
receiving end
decoding
format
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/093292
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English (en)
Chinese (zh)
Inventor
张炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
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ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2015154496A1 publication Critical patent/WO2015154496A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems

Definitions

  • 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.
  • HDMI high definition multimedia interface
  • the HDMI receiver eg, TV, computer, etc.
  • the audio ultimately depends on The sound card on the HDMI receiver plays.
  • these sound cards do not support the playback of some high-quality audio data.
  • the related technologies for soft decoding or power amplifier device decoding can only be manually set, thereby causing unnecessary trouble to the user.
  • 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.
  • a method of adaptive audio output comprising:
  • the step of determining whether the audio receiving end supports decoding of the audio format of the audio to be played comprises:
  • the step of determining, according to the EDID information, whether the audio receiving end supports decoding of an audio format of the audio comprises:
  • 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.
  • 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.
  • 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.
  • 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 A carrier carrying the computer program.
  • 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.
  • FIG. 1 is a flowchart of a method for adaptive audio output according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for adaptive audio output according to an embodiment of the present invention.
  • FIG. 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.
  • 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.
  • EDID Extended Display Identification Data
  • An embodiment of the present invention provides a method for adaptive audio output. Referring to FIG. 1, the method includes:
  • 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.
  • the present invention 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.
  • a smart TV box that is, a set top box.
  • 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.
  • a soft decoder any decoding device that 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.
  • 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.
  • FIG. 2 is a flowchart of another method for adaptive audio output according to an embodiment of the present invention.
  • 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;
  • 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;
  • 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;
  • S207 The television starts playing an audio file.
  • the embodiment of the present invention further provides an apparatus for adaptive audio output.
  • 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.
  • the device of the present invention is further provided with an obtaining unit 34.
  • 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.
  • 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.
  • EDID extended display identification data
  • 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 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.
  • the present invention has extremely strong industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un procédé et un appareil de sortie audio adaptative, une extrémité d'envoi audio et un système . Le procédé consiste à évaluer, au moyen d'une extrémité d'envoi audio, si une extrémité de réception audio supporte le décodage d'un format audio d'élément audio à lire (S101) ; et le cas échéant, à délivrer en sortie l'élément audio sur l'extrémité de réception audio (S102) ; sinon, à décoder l'élément audio et à délivrer en sortie les données audio décodées sur l'extrémité de réception audio (S103). En évaluant, au moyen de l'extrémité d'envoi audio, si l'extrémité de réception audio supporte le décodage du format audio de l'élément audio à lire, et en émettant automatiquement en sortie un flux audio décodé ou un code source en fonction d'un résultat d'évaluation, un utilisateur peut entendre un élément audio de qualité élevée sans opération et réglages quelconques, ce qui permet d'éviter le problème selon lequel l'utilisateur effectue à chaque fois des réglages complexes lors de la commutation d'un dispositif de sortie, de telle sorte que l'expérience d'utilisation de l'utilisateur est améliorée.
PCT/CN2014/093292 2014-08-15 2014-12-08 Procédé et appareil de sortie audio adaptative, extrémité d'envoi audio et système Ceased WO2015154496A1 (fr)

Applications Claiming Priority (2)

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CN201410402854.2 2014-08-15
CN201410402854.2A CN105374358A (zh) 2014-08-15 2014-08-15 一种自适应音频输出的方法、装置、音频发送端及系统

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US20170186440A1 (en) * 2015-12-23 2017-06-29 Xiaomi Inc. Method, device and storage medium for playing audio
CN111883152A (zh) * 2020-06-23 2020-11-03 海信视像科技股份有限公司 一种音频信号处理方法和一种电子设备

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CN106534203A (zh) * 2016-12-27 2017-03-22 努比亚技术有限公司 一种移动终端及通讯方法
CN111163276A (zh) * 2019-12-30 2020-05-15 深圳Tcl新技术有限公司 数据传输格式确定方法、装置及系统
CN114339388B (zh) * 2021-12-07 2024-09-10 海信视像科技股份有限公司 一种音频输出模式的控制方法及装置

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CN111883152B (zh) * 2020-06-23 2024-05-28 海信视像科技股份有限公司 一种音频信号处理方法和一种电子设备

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