RU2017122050A - AUDIO CODER AND AUDIO DECODER WITH METADATA OF INFORMATION ABOUT THE PROGRAM OR STRUCTURE OF THE NESTED STREAMS - Google Patents

AUDIO CODER AND AUDIO DECODER WITH METADATA OF INFORMATION ABOUT THE PROGRAM OR STRUCTURE OF THE NESTED STREAMS Download PDF

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RU2017122050A
RU2017122050A RU2017122050A RU2017122050A RU2017122050A RU 2017122050 A RU2017122050 A RU 2017122050A RU 2017122050 A RU2017122050 A RU 2017122050A RU 2017122050 A RU2017122050 A RU 2017122050A RU 2017122050 A RU2017122050 A RU 2017122050A
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volume
audio data
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Джеффри РИДМИЛЛЕР
Майкл ВАРД
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Долби Лабораторис Лайсэнзин Корпорейшн
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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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Information Transfer Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Stereo-Broadcasting Methods (AREA)

Claims (63)

1. Блок обработки аудиоданных, содержащий1. An audio data processing unit, comprising один или более процессоров;one or more processors; запоминающее устройство, связанное с одним или более процессорами и сконфигурированное для сохранения команд, которые при их выполнении одним или более процессорами приводят к выполнению одним или более процессорами операций, включающих:a storage device associated with one or more processors and configured to store instructions that, when executed by one or more processors, result in operations by one or more processors, including: получение кодированного битового аудиопотока, при этом кодированный битовый аудиопоток содержит аудиоданные и метаданные управления динамическим диапазоном (DRC), при этом метаданные DRC представляют собой или содержат метаданные профиля DRC, указывающие на то, содержат ли метаданные DRC управляющие значения DRC для использования при выполнении DRC в соответствии с профилем DRC;obtaining an encoded audio bitstream, wherein the encoded audio bitstream contains audio data and dynamic range control (DRC) metadata, wherein the DRC metadata is or contains DRC profile metadata indicating whether the DRC metadata contains DRC control values for use when performing DRC in compliance with the DRC profile; получение метаданных профиля DRC из кодированного битового потока;obtaining metadata of the DRC profile from the encoded bitstream; определение на основе метаданных профиля DRC того, что метаданные DRC содержат управляющие значения DRC;determining based on the DRC profile metadata that the DRC metadata contains DRC control values; обработку кодированного битового потока для получения аудиоданных и управляющих значений DRC; иprocessing the encoded bitstream to obtain audio data and DRC control values; and выполнение DRC аудиоданных с применением управляющих значений DRC.performing DRC audio data using DRC control values. 2. Блок обработки аудиоданных по п. 1, отличающийся тем, что кодированный битовый аудиопоток содержит контейнер метаданных, и при этом контейнер метаданных содержит заголовок и одно или более информационных наполнений метаданных после заголовка, при этом одно или более информационных наполнений метаданных содержит метаданные DRC.2. The audio data processing unit according to claim 1, characterized in that the encoded bit audio stream contains a metadata container, and the metadata container contains a header and one or more metadata content after the header, while one or more metadata content contains DRC metadata. 3. Блок обработки аудиоданных по п. 1, отличающийся тем, что операции дополнительно включают3. The audio data processing unit according to claim 1, characterized in that the operations further include получение метаданных громкости из кодированного битового аудиопотока; obtaining volume metadata from an encoded bitstream audio stream; определение на основе метаданных громкости того, что метаданные громкости содержат управляющее значение громкости для применения при выполнении управления громкостью аудиоданных;determining, based on the volume metadata, that the volume metadata contains a volume control value for use in performing volume control of the audio data; обработку кодированного битового потока для получения управляющего значения громкости; иprocessing the encoded bitstream to obtain a volume control value; and выполнение управления громкостью аудиоданных с применением управляющего значения громкости.performing audio volume control using the volume control value. 4. Блок обработки аудиоданных по п. 3, отличающийся тем, что управляющее значение громкости указывает на максимальную или среднюю громкость аудиоданных.4. The audio data processing unit according to claim 3, characterized in that the volume control value indicates the maximum or average volume of the audio data. 5. Блок обработки аудиоданных по п. 3, отличающийся тем, что управляющее значение громкости указывает на конкретный тип обработки громкости аудиоданных.5. The audio data processing unit according to claim 3, characterized in that the volume control value indicates a specific type of audio data volume processing. 6. Блок обработки аудиоданных по п. 3, отличающийся тем, что операции дополнительно включают:6. The audio data processing unit according to claim 3, characterized in that the operations further include: получение из кодированного битового потока управляющего значения громкости диалога для управления громкостью диалога в аудиоданных; иobtaining from the encoded bit stream the control value of the dialogue volume to control the dialogue volume in the audio data; and выполнение управления громкостью диалога в аудиоданных с применением управляющего значения громкости диалога.performing dialog volume control in audio data using the dialog volume control value. 7. Блок обработки аудиоданных по п. 3, отличающийся тем, что операции дополнительно включают7. The audio data processing unit according to claim 3, characterized in that the operations further include получение метаданных предварительной обработки; иobtaining pre-processing metadata; and на основе метаданных предварительной обработки выполнение управления громкостью аудиоданных с применением управляющего значения громкости.based on the preprocessing metadata, performing volume control of the audio data using the volume control value. 8. Блок обработки аудиоданных по п. 1, отличающийся тем, что операции дополнительно включают8. The audio data processing unit according to claim 1, characterized in that the operations further include получение метаданных понижающего микширования из кодированного битового потока; иobtaining down-mix metadata from an encoded bitstream; and выполнение DRC аудиоданных на основе метаданных понижающего микширования с применением значений DRC.performing DRC audio data based on downmix metadata using DRC values. 9. Способ, выполняемый блоком обработки аудиоданных, включающий9. The method performed by the audio data processing unit, including получение кодированного битового аудиопотока, при этом кодированный битовый аудиопоток содержит аудиоданные и метаданные управления динамическим диапазоном (DRC), при этом метаданные DRC представляют собой или содержат метаданные профиля DRC, указывающие на то, содержат ли метаданные DRC управляющие значения DRC для использования при выполнении DRC в соответствии с профилем DRC;obtaining an encoded audio bitstream, wherein the encoded audio bitstream contains audio data and dynamic range control (DRC) metadata, wherein the DRC metadata is or contains DRC profile metadata indicating whether the DRC metadata contains DRC control values for use when performing DRC in compliance with the DRC profile; получение метаданных профиля DRC из кодированного битового потока;obtaining metadata of the DRC profile from the encoded bitstream; определение на основе метаданных профиля DRC того, что метаданные DRC содержат управляющие значения DRC;determining based on the DRC profile metadata that the DRC metadata contains DRC control values; обработку кодированного битового потока для получения аудиоданных и управляющих значений DRC; иprocessing the encoded bitstream to obtain audio data and DRC control values; and выполнение DRC аудиоданных в соответствии с профилем DRC с применением управляющих значений DRC.performing DRC audio data in accordance with the DRC profile using DRC control values. 10. Способ по п. 9, отличающийся тем, что кодированный битовый аудиопоток содержит контейнер метаданных, и при этом контейнер метаданных содержит заголовок и одно или более информационных наполнений метаданных после заголовка, при этом одно или более информационных наполнений метаданных содержит метаданные DRC.10. The method according to p. 9, characterized in that the encoded bit audio stream contains a metadata container, and the metadata container contains a header and one or more metadata content after the header, while one or more metadata content contains DRC metadata. 11. Способ по п. 9, отличающийся тем, что дополнительно включает11. The method according to p. 9, characterized in that it further includes получение метаданных громкости из кодированного битового аудиопотока; obtaining volume metadata from an encoded bitstream audio stream; определение на основе метаданных громкости того, что метаданные громкости содержат управляющее значение громкости для применения при выполнении управления громкостью;determining, based on the volume metadata, that the volume metadata contains a volume control value for use in performing volume control; обработку кодированного битового потока для получения управляющего значения громкости; иprocessing the encoded bitstream to obtain a volume control value; and выполнение управления громкостью аудиоданных с применением управляющего значения громкости.performing audio volume control using the volume control value. 12. Способ по п. 11, отличающийся тем, что управляющее значение громкости указывает на максимальную или среднюю громкость аудиоданных.12. The method according to p. 11, characterized in that the control volume value indicates the maximum or average volume of the audio data. 13. Способ по п. 11, отличающийся тем, что управляющее значение громкости указывает на конкретный тип обработки громкости аудиоданных.13. The method according to p. 11, characterized in that the control value of the volume indicates a specific type of processing the volume of the audio data. 14. Способ по п. 11, отличающийся тем, что дополнительно включает14. The method according to p. 11, characterized in that it further includes получение из кодированного битового потока управляющего значения громкости диалога для управления громкостью диалога в аудиоданных; иobtaining from the encoded bit stream the control value of the dialogue volume to control the dialogue volume in the audio data; and выполнение управления громкостью диалога с применением управляющего значения громкости диалога.performing dialog volume control using the dialog volume control value. 15. Способ по п. 11, отличающийся тем, что дополнительно включает15. The method according to p. 11, characterized in that it further includes получение из кодированного битового потока метаданных предварительной обработки; иobtaining preprocessing metadata from the encoded bitstream; and выполнение управления громкостью аудиоданных в соответствии с метаданными предварительной обработки с применением управляющего значения громкости.performing volume control of the audio data in accordance with the preprocessing metadata using the volume control value. 16. Способ по п. 9, отличающийся тем, что дополнительно включает16. The method according to p. 9, characterized in that it further includes получение информации понижающего микширования из кодированного битового потока; иobtaining down-mix information from the encoded bitstream; and выполнение DRC аудиоданных в соответствии с профилем DRC с применением управляющих значений DRC и информации понижающего микширования.performing DRC audio data according to the DRC profile using DRC control values and downmix information. 17. Способ по п. 9, отличающийся тем, что управляющие значения динамического диапазона являются управляющими значениями динамического сжатия.17. The method according to p. 9, characterized in that the control values of the dynamic range are control values of dynamic compression. 18. Способ по п. 9, отличающийся тем, что дополнительно включает18. The method according to p. 9, characterized in that it further includes получение информации канала из кодированного битового потока; иobtaining channel information from an encoded bitstream; and выполнение DRC аудиоданных в соответствии с профилем DRC с применением управляющих значений DRC и информации канала.performing DRC audio data in accordance with the DRC profile using DRC control values and channel information. 19. Постоянный машиночитаемый носитель данных с сохраненными на нем командами, которые при их выполнении одним или более процессорами приводят к выполнению одним или более процессорами операций, включающих19. A permanent computer-readable storage medium with instructions stored on it which, when executed by one or more processors, lead to the execution by one or more processors of operations including получение кодированного битового аудиопотока, при этом кодированный битовый аудиопоток содержит аудиоданные и метаданные управления динамическим диапазоном (DRC), при этом метаданные DRC представляют собой или содержат метаданные профиля DRC, указывающие на то, содержат ли метаданные DRC управляющие значения DRC для использования при выполнении DRC в соответствии с профилем DRC;obtaining an encoded audio bitstream, wherein the encoded audio bitstream contains audio data and dynamic range control (DRC) metadata, wherein the DRC metadata is or contains DRC profile metadata indicating whether the DRC metadata contains DRC control values for use when performing DRC in compliance with the DRC profile; получение метаданных профиля DRC из кодированного битового потока;obtaining metadata of the DRC profile from the encoded bitstream; определение на основе метаданных профиля DRC того, что метаданные DRC содержат управляющие значения DRC;determining based on the DRC profile metadata that the DRC metadata contains DRC control values; обработку кодированного битового потока для получения аудиоданных и управляющих значений DRC; иprocessing the encoded bitstream to obtain audio data and DRC control values; and выполнение DRC аудиоданных с применением управляющих значений DRC.performing DRC audio data using DRC control values. 20. Постоянный машиночитаемый носитель данных по п. 19, отличающийся тем, что операции дополнительно включают:20. A permanent computer-readable storage medium according to claim 19, characterized in that the operations further include: получение метаданных громкости из кодированного битового аудиопотока; obtaining volume metadata from an encoded bitstream audio stream; определение на основе метаданных громкости того, что метаданные громкости содержат управляющее значение громкости для применения при выполнении управления громкостью аудиоданных;determining, based on the volume metadata, that the volume metadata contains a volume control value for use in performing volume control of the audio data; обработку кодированного битового потока для получения управляющего значения громкости; иprocessing the encoded bitstream to obtain a volume control value; and выполнение управления громкостью аудиоданных с применением управляющего значения громкости.performing audio volume control using the volume control value.
RU2017122050A 2013-06-19 2017-06-22 Audio encoder and audio decoder with metadata of program information or structure of embedded streams RU2696465C2 (en)

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