TWI571864B - 用以使用修改時域激勵信號之錯誤隱藏提供解碼音訊資訊之音訊解碼器及方法 - Google Patents
用以使用修改時域激勵信號之錯誤隱藏提供解碼音訊資訊之音訊解碼器及方法 Download PDFInfo
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- TWI571864B TWI571864B TW103137632A TW103137632A TWI571864B TW I571864 B TWI571864 B TW I571864B TW 103137632 A TW103137632 A TW 103137632A TW 103137632 A TW103137632 A TW 103137632A TW I571864 B TWI571864 B TW I571864B
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- time domain
- error concealment
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- excitation signal
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Classifications
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- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
- G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
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- 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
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- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
Landscapes
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- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
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- Detection And Prevention Of Errors In Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13191133 | 2013-10-31 | ||
| EP14178825 | 2014-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201523584A TW201523584A (zh) | 2015-06-16 |
| TWI571864B true TWI571864B (zh) | 2017-02-21 |
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| TW103137632A TWI571864B (zh) | 2013-10-31 | 2014-10-30 | 用以使用修改時域激勵信號之錯誤隱藏提供解碼音訊資訊之音訊解碼器及方法 |
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Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105976830B (zh) * | 2013-01-11 | 2019-09-20 | 华为技术有限公司 | 音频信号编码和解码方法、音频信号编码和解码装置 |
| ES2752213T3 (es) | 2013-10-31 | 2020-04-03 | Fraunhofer Ges Forschung | Decodificador de audio y método para proporcionar una información de audio decodificada usando una ocultación de error que modifica una señal de excitación de dominio de tiempo |
| MX356334B (es) | 2013-10-31 | 2018-05-23 | Fraunhofer Ges Forschung | Decodificador de audio y método para proveer una información de audio decodificada usando un ocultamiento de error sobre la base de una señal de excitación de dominio de tiempo. |
| EP2980795A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor |
| EP2980794A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and decoder using a frequency domain processor and a time domain processor |
| CA2991341A1 (en) * | 2015-07-06 | 2017-01-12 | Nokia Technologies Oy | Bit error detector for an audio signal decoder |
| WO2017129270A1 (en) * | 2016-01-29 | 2017-08-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for improving a transition from a concealed audio signal portion to a succeeding audio signal portion of an audio signal |
| EP3427257B1 (en) | 2016-03-07 | 2021-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Error concealment unit, audio decoder, and related method and computer program fading out a concealed audio frame out according to different damping factors for different frequency bands |
| CN109155133B (zh) | 2016-03-07 | 2023-06-02 | 弗劳恩霍夫应用研究促进协会 | 音频帧丢失隐藏的错误隐藏单元、音频解码器及相关方法 |
| CA3016730C (en) * | 2016-03-07 | 2021-09-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Error concealment unit, audio decoder, and related method and computer program using characteristics of a decoded representation of a properly decoded audio frame |
| RU2727794C1 (ru) | 2017-05-18 | 2020-07-24 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Управляющее сетевое устройство |
| EP3483883A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding and decoding with selective postfiltering |
| EP3483879A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analysis/synthesis windowing function for modulated lapped transformation |
| EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
| EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
| EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
| WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
| EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
| EP3483878A1 (en) * | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder supporting a set of different loss concealment tools |
| CN113196386B (zh) * | 2018-12-20 | 2024-09-17 | 瑞典爱立信有限公司 | 用于控制多声道音频帧丢失隐藏的方法和装置 |
| AU2019437394B2 (en) * | 2019-03-25 | 2025-02-13 | Razer (Asia-Pacific) Pte. Ltd. | Method and apparatus for using incremental search sequence in audio error concealment |
| AU2020291776B2 (en) * | 2019-06-12 | 2023-11-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Packet loss concealment for dirac based spatial audio coding |
| CN113129910B (zh) * | 2019-12-31 | 2024-07-30 | 华为技术有限公司 | 音频信号的编解码方法和编解码装置 |
| CN111554309B (zh) * | 2020-05-15 | 2024-11-22 | 腾讯科技（深圳）有限公司 | 一种语音处理方法、装置、设备及存储介质 |
| BR112022025235A2 (pt) * | 2020-06-11 | 2022-12-27 | Dolby Int Ab | Ocultação de perda de quadro para um canal de efeitos de baixa frequência |
| CN111755017B (zh) * | 2020-07-06 | 2021-01-26 | 全时云商务服务股份有限公司 | 云会议的音频录制方法、装置、服务器及存储介质 |
| CN113763973A (zh) * | 2021-04-30 | 2021-12-07 | 腾讯科技（深圳）有限公司 | 音频信号增强方法、装置、计算机设备和存储介质 |
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