MY141496A - High quality time-scaling and pitch-scaling of audio signals - Google Patents
High quality time-scaling and pitch-scaling of audio signalsInfo
- Publication number
- MY141496A MY141496A MYPI20021371A MYPI20021371A MY141496A MY 141496 A MY141496 A MY 141496A MY PI20021371 A MYPI20021371 A MY PI20021371A MY PI20021371 A MYPI20021371 A MY PI20021371A MY 141496 A MY141496 A MY 141496A
- Authority
- MY
- Malaysia
- Prior art keywords
- scaling
- signal
- pitch
- auditory events
- high quality
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 2
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
- 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
- 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
-
- 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
- G10L21/003—Changing voice quality, e.g. pitch or formants
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Electrophonic Musical Instruments (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
IN ONE ALTERNATIVE, AN AUDIO SIGNAL (102) IS ANALYZED USING MULTIPLE PSYCHOACOUSTIC CRITERIA TO IDENTIFY A REGION OF THE SIGNAL IN WHICH THE TIMW SCALING AND/OR PITCH SHIFTING PROCESSING WOULD BE INAUDIBLE OR MINIMALLY AUDIBLE, AND THE SIGNAL (102) IS TIME SCALED AND/OR PITCH SHIFTED WITHIN THAT REGION. IN ANOTHER ALTERNATIVE, THE SIGNAL IS DIVIDED INTO AUDITORY EVENTS, AND THE SIGNAL IS TIME SCALED AND/OR PITCH SHIFTED WITHIN AN AUDITORY EVENTS. IN A FURTHER ALTENATIVE, THE SIGNAL IS DIVIDED INTO AUDITORY EVENTS, AND THE AUDITORY EVENTS ARE ANALYSED USING A PSYCHOACOUSTIC CRITERION TO IDENTIFY THOSE AUDITORY EVENTS IN WHICH THE TIME SCALING AND/OR PITCH SHIFTING PROCESSING OF THE SIGNAL WOULD BE INAUDIBLE OR MINIMALLY AUDIBLE. FURTHER ALTENATIVES PROVIDE FOR MULTIPLE CHANNELS OF AUDIO.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83473901A | 2001-04-13 | 2001-04-13 | |
US29382501P | 2001-05-25 | 2001-05-25 | |
US09/922,394 US20020116178A1 (en) | 2001-04-13 | 2001-08-02 | High quality time-scaling and pitch-scaling of audio signals |
US4564402A | 2002-01-11 | 2002-01-11 | |
PCT/US2002/004317 WO2002084645A2 (en) | 2001-04-13 | 2002-02-12 | High quality time-scaling and pitch-scaling of audio signals |
Publications (1)
Publication Number | Publication Date |
---|---|
MY141496A true MY141496A (en) | 2010-04-30 |
Family
ID=40030457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI20021371A MY141496A (en) | 2001-04-13 | 2002-04-13 | High quality time-scaling and pitch-scaling of audio signals |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR100870870B1 (en) |
AU (1) | AU2002248431B2 (en) |
MY (1) | MY141496A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY179314A (en) * | 2008-04-18 | 2020-11-04 | Dolby Laboratories Licensing Corp | Method and apparatus for maintaining speech audibility in multi-channel audio with minimal impact on surround experience |
KR102163862B1 (en) * | 2019-03-25 | 2020-10-12 | 한국과학기술원 | Electronic apparatus for multiscale speech emotion recognization and operating method thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4624009A (en) | 1980-05-02 | 1986-11-18 | Figgie International, Inc. | Signal pattern encoder and classifier |
US4464784A (en) | 1981-04-30 | 1984-08-07 | Eventide Clockworks, Inc. | Pitch changer with glitch minimizer |
US5175769A (en) * | 1991-07-23 | 1992-12-29 | Rolm Systems | Method for time-scale modification of signals |
JPH1074097A (en) * | 1996-07-26 | 1998-03-17 | Ind Technol Res Inst | Parameter changing method and device for audio signal |
US6049766A (en) * | 1996-11-07 | 2000-04-11 | Creative Technology Ltd. | Time-domain time/pitch scaling of speech or audio signals with transient handling |
JP3017715B2 (en) * | 1997-10-31 | 2000-03-13 | 松下電器産業株式会社 | Audio playback device |
US6266644B1 (en) * | 1998-09-26 | 2001-07-24 | Liquid Audio, Inc. | Audio encoding apparatus and methods |
JP4300641B2 (en) * | 1999-08-10 | 2009-07-22 | ヤマハ株式会社 | Time axis companding method and apparatus for multitrack sound source signal |
US7711123B2 (en) * | 2001-04-13 | 2010-05-04 | Dolby Laboratories Licensing Corporation | Segmenting audio signals into auditory events |
-
2002
- 2002-02-12 KR KR1020037013446A patent/KR100870870B1/en active IP Right Grant
- 2002-02-12 AU AU2002248431A patent/AU2002248431B2/en not_active Expired
- 2002-04-13 MY MYPI20021371A patent/MY141496A/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR20030085597A (en) | 2003-11-05 |
AU2002248431B2 (en) | 2008-11-13 |
KR100870870B1 (en) | 2008-11-27 |
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