MX2012007942A - Transposicion armonica mejorada basada en un bloque de subbanda. - Google Patents
Transposicion armonica mejorada basada en un bloque de subbanda.Info
- Publication number
- MX2012007942A MX2012007942A MX2012007942A MX2012007942A MX2012007942A MX 2012007942 A MX2012007942 A MX 2012007942A MX 2012007942 A MX2012007942 A MX 2012007942A MX 2012007942 A MX2012007942 A MX 2012007942A MX 2012007942 A MX2012007942 A MX 2012007942A
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- subband
- analysis
- subband signal
- synthesis
- Prior art date
Links
- 230000017105 transposition Effects 0.000 title abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 4
- 238000003786 synthesis reaction Methods 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
Classifications
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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
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
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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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
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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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
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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
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
-
- 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
- G10L21/04—Time compression or expansion
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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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Vibration Dampers (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Braking Arrangements (AREA)
- Superheterodyne Receivers (AREA)
Abstract
El presente documento se relaciona con sistemas que codifican una fuente de audio, que hace uso de un método de transposición armónica para la reconstrucción a alta frecuencia (HFR), así como con procesadores de efectos digitales, por ejemplo, excitadores, en donde la generación de la distorsión armónica agrega brillantez a la señal procesada, y con extensores del tiempo, en donde una duración de la señal se prolonga con un contenido espectral mantenido. Se describe un sistema y método configurados para generar una señal con el tiempo extendido y/o la frecuencia transpuesta de una señal de entrada. El sistema comprende un banco de filtros de análisis (101) configurado para proporcionar una señal de la subbanda de análisis de la señal de entrada; en donde la señal de la subbanda de análisis comprende una pluralidad de muestras de análisis valiosas complejas, cada una que tiene una fase y una magnitud. Además, el sistema comprende una unidad de procesamiento de la subbanda (102) configurada para determinar una señal de la subbanda de síntesis de la señal de la subbanda de análisis, utilizando un factor de transposición de la subbanda Q y un factor de extensión de la subbanda S. La unidad de procesamiento de la subbanda (102) realiza un procesamiento no lineal basado en el bloque, en donde la magnitud de las muestras de la señal de la subbanda de síntesis se determina de la magnitud de las muestras correspondientes de la señal de la subbanda de análisis y una muestra predeterminada de la señal de la subbanda de análisis. Además, el sistema comprende un banco de filtros de síntesis (103) configurado para generar la señalen el tiempo extendido y/o la frecuencia transpuesta de la señal de la subbanda de síntesis.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29624110P | 2010-01-19 | 2010-01-19 | |
US33154510P | 2010-05-05 | 2010-05-05 | |
PCT/EP2011/050114 WO2011089029A1 (en) | 2010-01-19 | 2011-01-05 | Improved subband block based harmonic transposition |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2012007942A true MX2012007942A (es) | 2012-08-03 |
Family
ID=43531026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2012007942A MX2012007942A (es) | 2010-01-19 | 2011-01-05 | Transposicion armonica mejorada basada en un bloque de subbanda. |
Country Status (17)
Country | Link |
---|---|
US (10) | US8898067B2 (es) |
EP (7) | EP4120264B1 (es) |
JP (8) | JP5329717B2 (es) |
KR (13) | KR101858948B1 (es) |
CN (4) | CN104318928B (es) |
AU (1) | AU2011208899B2 (es) |
BR (6) | BR122020020536B1 (es) |
CA (9) | CA3107943C (es) |
CL (1) | CL2012001990A1 (es) |
ES (6) | ES2734179T3 (es) |
MX (1) | MX2012007942A (es) |
MY (2) | MY164396A (es) |
PL (6) | PL3564954T3 (es) |
RU (3) | RU2518682C2 (es) |
SG (3) | SG182269A1 (es) |
UA (1) | UA102347C2 (es) |
WO (1) | WO2011089029A1 (es) |
Families Citing this family (16)
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PL3564954T3 (pl) | 2010-01-19 | 2021-04-06 | Dolby International Ab | Ulepszona transpozycja harmonicznych oparta na bloku podpasma |
US8958510B1 (en) * | 2010-06-10 | 2015-02-17 | Fredric J. Harris | Selectable bandwidth filter |
CA3220202A1 (en) * | 2010-09-16 | 2012-03-22 | Dolby International Ab | Cross product enhanced subband block based harmonic transposition |
EP2682941A1 (de) * | 2012-07-02 | 2014-01-08 | Technische Universität Ilmenau | Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne |
JP2014041240A (ja) * | 2012-08-22 | 2014-03-06 | Pioneer Electronic Corp | タイムスケーリング方法、ピッチシフト方法、オーディオデータ処理装置およびプログラム |
CN103971693B (zh) | 2013-01-29 | 2017-02-22 | 华为技术有限公司 | 高频带信号的预测方法、编/解码设备 |
KR102329309B1 (ko) * | 2013-09-12 | 2021-11-19 | 돌비 인터네셔널 에이비 | Qmf 기반 처리 데이터의 시간 정렬 |
US9306606B2 (en) * | 2014-06-10 | 2016-04-05 | The Boeing Company | Nonlinear filtering using polyphase filter banks |
EP2963649A1 (en) * | 2014-07-01 | 2016-01-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio processor and method for processing an audio signal using horizontal phase correction |
US10129659B2 (en) | 2015-05-08 | 2018-11-13 | Doly International AB | Dialog enhancement complemented with frequency transposition |
BR112018005391B1 (pt) * | 2015-09-22 | 2023-11-21 | Koninklijke Philips N.V | Aparelho para processamento de sinais de áudio, método de processamento de sinais de áudio, e dispositivo |
TWI807562B (zh) * | 2017-03-23 | 2023-07-01 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
KR102615903B1 (ko) * | 2017-04-28 | 2023-12-19 | 디티에스, 인코포레이티드 | 오디오 코더 윈도우 및 변환 구현들 |
US11361506B2 (en) | 2018-04-09 | 2022-06-14 | Dolby Laboratories Licensing Corporation | HDR image representations using neural network mappings |
CN114242090A (zh) | 2018-04-25 | 2022-03-25 | 杜比国际公司 | 具有减少后处理延迟的高频重建技术的集成 |
WO2019207036A1 (en) | 2018-04-25 | 2019-10-31 | Dolby International Ab | Integration of high frequency audio reconstruction techniques |
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2011
- 2011-01-05 PL PL19175681T patent/PL3564954T3/pl unknown
- 2011-01-05 CA CA3107943A patent/CA3107943C/en active Active
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- 2011-01-05 CA CA3225485A patent/CA3225485A1/en active Pending
- 2011-01-05 KR KR1020177027021A patent/KR101858948B1/ko active IP Right Grant
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- 2011-01-05 KR KR1020137023416A patent/KR101663578B1/ko active IP Right Grant
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