AR081264A1 - LOW-DELAY VOICE AND UNIFIED AUDIO DECODER CODIFIER - Google Patents
LOW-DELAY VOICE AND UNIFIED AUDIO DECODER CODIFIERInfo
- Publication number
- AR081264A1 AR081264A1 ARP110101857A AR081264A1 AR 081264 A1 AR081264 A1 AR 081264A1 AR P110101857 A ARP110101857 A AR P110101857A AR 081264 A1 AR081264 A1 AR 081264A1
- Authority
- AR
- Argentina
- Prior art keywords
- frame
- frames
- decoder
- encoded
- excitation
- Prior art date
Links
- 230000005284 excitation Effects 0.000 abstract 5
- 230000009466 transformation Effects 0.000 abstract 3
- 230000005236 sound signal Effects 0.000 abstract 1
Classifications
-
- 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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Se describe un decodificador de voz y audio unificado, el cual comprende un búfer de trama configurado para pasar a memoria intermedia una sub-parte de un paquete de datos compuesto por cuadros consecutivos en unidades de los cuadros de modo que la sub-parte comprende continuamente por lo menos un cuadro, representando cada cuadro una versión codificada de una respectiva porción de porciones consecutivas de una senal de audio y comprendiendo cada cuadro un identifícador de modo que asigna el respectivo cuadro a uno respectivo de una pluralidad de modos de codificación que comprende un modo de codificación CELP (predicción lineal de excitación por libro de códigos) y un modo de codificación de predicción lineal de excitación codificada por transformación. Además, el decodificador de voz y audio unificado comprende un decodificador CELP configurado para decodificar los cuadros a los cuales es asignado el modo de codificación CELP para reconstruir las respectivas porciones, y un decodificador de predicción lineal de excitación codificada por transformación configurado para decodificar los cuadros a los cuales se asigna el modo de codificación de predicción lineal de excitación codificada por transformación., para reconstruir las respectivas porciones, en donde el búfer de trama está configurado para distribuir los cuadros pasados a memoria intermedia al decodificador CELP y al decodificador de predicción lineal de excitación codificada por transformación bajo remoción de los respectivos cuadros del búfer de trama, a modo de cuadro.A unified voice and audio decoder is described, which comprises a frame buffer configured to pass a sub-part of a data packet composed of consecutive frames in units of the frames to intermediate memory so that the sub-part continuously comprises at least one frame, each frame representing an encoded version of a respective portion of consecutive portions of an audio signal and each frame comprising an identifier so that it assigns the respective frame to a respective one of a plurality of coding modes comprising a CELP coding mode (linear excitation prediction by codebook) and a linear prediction coding mode of excitation encoded by transformation. In addition, the unified voice and audio decoder comprises a CELP decoder configured to decode the frames to which the CELP encoding mode is assigned to reconstruct the respective portions, and a transformation-encoded linear excitation prediction decoder configured to decode the frames. to which the encoding mode of linear prediction of excitation encoded by transformation is assigned., to reconstruct the respective portions, wherein the frame buffer is configured to distribute the frames passed to intermediate memory to the CELP decoder and the linear prediction decoder of excitation encoded by transformation under removal of the respective frames of the frame buffer, as a frame.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34935610P | 2010-05-28 | 2010-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR081264A1 true AR081264A1 (en) | 2012-07-18 |
Family
ID=44351512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP110101857 AR081264A1 (en) | 2010-05-28 | 2011-05-30 | LOW-DELAY VOICE AND UNIFIED AUDIO DECODER CODIFIER |
Country Status (3)
| Country | Link |
|---|---|
| AR (1) | AR081264A1 (en) |
| TW (1) | TW201214415A (en) |
| WO (1) | WO2011147950A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG192721A1 (en) | 2011-02-14 | 2013-09-30 | Fraunhofer Ges Forschung | Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion |
| JP5712288B2 (en) | 2011-02-14 | 2015-05-07 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | Information signal notation using duplicate conversion |
| AR085361A1 (en) | 2011-02-14 | 2013-09-25 | Fraunhofer Ges Forschung | CODING AND DECODING POSITIONS OF THE PULSES OF THE TRACKS OF AN AUDIO SIGNAL |
| EP2676266B1 (en) | 2011-02-14 | 2015-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Linear prediction based coding scheme using spectral domain noise shaping |
| AR085218A1 (en) | 2011-02-14 | 2013-09-18 | Fraunhofer Ges Forschung | APPARATUS AND METHOD FOR HIDDEN ERROR UNIFIED VOICE WITH LOW DELAY AND AUDIO CODING |
| MY159444A (en) | 2011-02-14 | 2017-01-13 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V | Encoding and decoding of pulse positions of tracks of an audio signal |
| TWI476760B (en) | 2011-02-14 | 2015-03-11 | Fraunhofer Ges Forschung | Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result |
| RU2586838C2 (en) | 2011-02-14 | 2016-06-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Audio codec using synthetic noise during inactive phase |
| AU2012217269B2 (en) | 2011-02-14 | 2015-10-22 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing a decoded audio signal in a spectral domain |
| US9495968B2 (en) | 2013-05-29 | 2016-11-15 | Qualcomm Incorporated | Identifying sources from which higher order ambisonic audio data is generated |
| EP2830058A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Frequency-domain audio coding supporting transform length switching |
| US10770087B2 (en) * | 2014-05-16 | 2020-09-08 | Qualcomm Incorporated | Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals |
| EP3107096A1 (en) | 2015-06-16 | 2016-12-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Downscaled decoding |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX2011003824A (en) * | 2008-10-08 | 2011-05-02 | Fraunhofer Ges Forschung | Multi-resolution switched audio encoding/decoding scheme. |
| ES2453098T3 (en) * | 2009-10-20 | 2014-04-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Multimode Audio Codec |
-
2011
- 2011-05-27 WO PCT/EP2011/058701 patent/WO2011147950A1/en active Application Filing
- 2011-05-27 TW TW100118660A patent/TW201214415A/en unknown
- 2011-05-30 AR ARP110101857 patent/AR081264A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011147950A1 (en) | 2011-12-01 |
| TW201214415A (en) | 2012-04-01 |
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