TWI505265B - 操縱具有瞬變事件的音頻信號的設備和方法以及具有執行該方法之程式碼的電腦程式 - Google Patents
操縱具有瞬變事件的音頻信號的設備和方法以及具有執行該方法之程式碼的電腦程式 Download PDFInfo
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- TWI505265B TWI505265B TW101114952A TW101114952A TWI505265B TW I505265 B TWI505265 B TW I505265B TW 101114952 A TW101114952 A TW 101114952A TW 101114952 A TW101114952 A TW 101114952A TW I505265 B TWI505265 B TW I505265B
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- audio signal
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- transient event
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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
- G10L21/04—Time compression or expansion
-
- 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
-
- 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
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
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)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Electrophonic Musical Instruments (AREA)
- Amplifiers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3531708P | 2008-03-10 | 2008-03-10 | |
| PCT/EP2009/001108 WO2009112141A1 (en) | 2008-03-10 | 2009-02-17 | Device and method for manipulating an audio signal having a transient event |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201246196A TW201246196A (en) | 2012-11-16 |
| TWI505265B true TWI505265B (zh) | 2015-10-21 |
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| TW101114948A TWI505264B (zh) | 2008-03-10 | 2009-02-23 | 操縱具有瞬變事件的音頻信號的設備和方法以及具有執行該方法之程式碼的電腦程式 |
| TW101114952A TWI505265B (zh) | 2008-03-10 | 2009-02-23 | 操縱具有瞬變事件的音頻信號的設備和方法以及具有執行該方法之程式碼的電腦程式 |
| TW098105710A TWI380288B (en) | 2008-03-10 | 2009-02-23 | Device and method for manipulating an audio signal having a transient event |
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| TW101114948A TWI505264B (zh) | 2008-03-10 | 2009-02-23 | 操縱具有瞬變事件的音頻信號的設備和方法以及具有執行該方法之程式碼的電腦程式 |
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Country Status (14)
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| USRE47180E1 (en) * | 2008-07-11 | 2018-12-25 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating a bandwidth extended signal |
| HUE064777T2 (hu) * | 2008-12-15 | 2024-04-28 | Fraunhofer Ges Forschung | Audió sávszélesség kiterjesztés dekódoló, megfelelõ eljárás és számítógépi program |
| CA2966469C (en) | 2009-01-28 | 2020-05-05 | Dolby International Ab | Improved harmonic transposition |
| EP3985666B1 (en) | 2009-01-28 | 2022-08-17 | Dolby International AB | Improved harmonic transposition |
| EP2214165A3 (en) * | 2009-01-30 | 2010-09-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method and computer program for manipulating an audio signal comprising a transient event |
| CN103559891B (zh) | 2009-09-18 | 2016-05-11 | 杜比国际公司 | 改进的谐波转置 |
| WO2011048100A1 (en) | 2009-10-20 | 2011-04-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using an iterative interval size reduction |
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