MY141496A - High quality time-scaling and pitch-scaling of audio signals - Google Patents

High quality time-scaling and pitch-scaling of audio signals

Info

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
Application number
MYPI20021371A
Inventor
Brett G Crockett
Original Assignee
Dolby Lab Licensing Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/922,394 external-priority patent/US20020116178A1/en
Priority claimed from PCT/US2002/004317 external-priority patent/WO2002084645A2/en
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of MY141496A publication Critical patent/MY141496A/en

Links

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.
MYPI20021371A 2001-04-13 2002-04-13 High quality time-scaling and pitch-scaling of audio signals MY141496A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY159890A (en) * 2008-04-18 2017-02-15 Dolby Laboratories Licensing Corp Method and apparatus for maintaining speech audibiliy 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
AU2002248431B2 (en) 2008-11-13
KR100870870B1 (en) 2008-11-27
KR20030085597A (en) 2003-11-05

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