WO2010003618A3 - Providing a time warp activation signal and encoding an audio signal therewith - Google Patents

Providing a time warp activation signal and encoding an audio signal therewith Download PDF

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Publication number
WO2010003618A3
WO2010003618A3 PCT/EP2009/004874 EP2009004874W WO2010003618A3 WO 2010003618 A3 WO2010003618 A3 WO 2010003618A3 EP 2009004874 W EP2009004874 W EP 2009004874W WO 2010003618 A3 WO2010003618 A3 WO 2010003618A3
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WO
WIPO (PCT)
Prior art keywords
time
signal
encoding
providing
noise filling
Prior art date
Application number
PCT/EP2009/004874
Other languages
French (fr)
Other versions
WO2010003618A2 (en
Inventor
Stefan Bayer
Sascha Disch
Ralf Geiger
Guillaume Fuchs
Max Neuendorf
Gerald Schuller
Bernd Edler
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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 to EP09776982A priority Critical patent/EP2311033B1/en
Priority to MX2011000368A priority patent/MX2011000368A/en
Priority to ES09776982T priority patent/ES2379761T3/en
Priority to CN2009801358374A priority patent/CN102150201B/en
Priority to PL09776982T priority patent/PL2311033T3/en
Priority to CA2730239A priority patent/CA2730239C/en
Application filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority to AU2009267433A priority patent/AU2009267433B2/en
Priority to KR1020137016921A priority patent/KR101400484B1/en
Priority to KR1020137016914A priority patent/KR101400535B1/en
Priority to EP11180988.5A priority patent/EP2410520B1/en
Priority to EP11180983.6A priority patent/EP2410519B1/en
Priority to BRPI0910790A priority patent/BRPI0910790A2/en
Priority to PL11180988T priority patent/PL2410520T3/en
Priority to KR1020137016934A priority patent/KR101400588B1/en
Priority to RU2011104002/08A priority patent/RU2536679C2/en
Priority to KR1020117000659A priority patent/KR101360456B1/en
Priority to AT09776982T priority patent/ATE539433T1/en
Priority to KR1020137016928A priority patent/KR101400513B1/en
Priority to JP2011517015A priority patent/JP5538382B2/en
Priority to TW098123433A priority patent/TWI463484B/en
Priority to ARP090102631A priority patent/AR072740A1/en
Publication of WO2010003618A2 publication Critical patent/WO2010003618A2/en
Publication of WO2010003618A3 publication Critical patent/WO2010003618A3/en
Priority to US13/004,525 priority patent/US9015041B2/en
Priority to HK11109868.7A priority patent/HK1155551A1/en
Priority to US14/538,735 priority patent/US9431026B2/en
Priority to US14/538,741 priority patent/US9466313B2/en
Priority to US14/538,728 priority patent/US9263057B2/en
Priority to US14/538,751 priority patent/US9502049B2/en
Priority to US14/538,748 priority patent/US9293149B2/en
Priority to US14/538,756 priority patent/US9646632B2/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/002—Dynamic bit allocation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G10L21/043—Time compression or expansion by changing speed
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/90—Pitch determination of speech signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/78—Detection of presence or absence of voice signals

Abstract

An audio encoder comprises a window function controller (504), a windower (502), a time warper (506) with a final quality check functionality, a time/frequency converter (508), a TNS stage (510) or a quantizer encoder (512), the window function controller (504), the time warper (506), the TNS stage (510) or an additional noise filling analyzer (524) are controlled by signal analysis results obtained by a time warp analyzer (516) or a signal classifier (520). Furthermore, a decoder applies a noise filling operation using a manipulated noise filling estimate depending on a harmonic or speech characteristic of the audio signal.
PCT/EP2009/004874 2008-07-11 2009-07-06 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs WO2010003618A2 (en)

Priority Applications (29)

Application Number Priority Date Filing Date Title
KR1020137016934A KR101400588B1 (en) 2008-07-11 2009-07-06 Providing a Time Warp Activation Signal and Encoding an Audio Signal Therewith
ES09776982T ES2379761T3 (en) 2008-07-11 2009-07-06 Provide a time distortion activation signal and encode an audio signal with it
CN2009801358374A CN102150201B (en) 2008-07-11 2009-07-06 Providing a time warp activation signal and encoding an audio signal therewith
PL09776982T PL2311033T3 (en) 2008-07-11 2009-07-06 Providing a time warp activation signal and encoding an audio signal therewith
CA2730239A CA2730239C (en) 2008-07-11 2009-07-06 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
KR1020117000659A KR101360456B1 (en) 2008-07-11 2009-07-06 Providing a Time Warp Activation Signal and Encoding an Audio Signal Therewith
AU2009267433A AU2009267433B2 (en) 2008-07-11 2009-07-06 Providing a time warp activation signal and encoding an audio signal therewith
KR1020137016921A KR101400484B1 (en) 2008-07-11 2009-07-06 Providing a Time Warp Activation Signal and Encoding an Audio Signal Therewith
KR1020137016914A KR101400535B1 (en) 2008-07-11 2009-07-06 Providing a Time Warp Activation Signal and Encoding an Audio Signal Therewith
EP11180988.5A EP2410520B1 (en) 2008-07-11 2009-07-06 Audio signal encoders, methods for encoding an audio signal and computer programs
MX2011000368A MX2011000368A (en) 2008-07-11 2009-07-06 Providing a time warp activation signal and encoding an audio signal therewith.
BRPI0910790A BRPI0910790A2 (en) 2008-07-11 2009-07-06 TIME FAULT ACTIVATION SIGNAL PROVIDER, AUDIO SIGNAL ENCODER, METHOD FOR PROVIDING A TIME FAULT ACTIVATION SIGNAL, METHOD FOR ENCODING AN AUDIO SIGNAL, AND COMPUTING PROGRAMS
PL11180988T PL2410520T3 (en) 2008-07-11 2009-07-06 Audio signal encoders, methods for encoding an audio signal and computer programs
RU2011104002/08A RU2536679C2 (en) 2008-07-11 2009-07-06 Time-deformation activation signal transmitter, audio signal encoder, method of converting time-deformation activation signal, audio signal encoding method and computer programmes
EP11180983.6A EP2410519B1 (en) 2008-07-11 2009-07-06 Method and apparatus for encoding and decoding an audio signal and computer programs
EP09776982A EP2311033B1 (en) 2008-07-11 2009-07-06 Providing a time warp activation signal and encoding an audio signal therewith
AT09776982T ATE539433T1 (en) 2008-07-11 2009-07-06 PROVIDING A TIME DISTORTION ACTIVATION SIGNAL AND ENCODING AN AUDIO SIGNAL THEREFROM
KR1020137016928A KR101400513B1 (en) 2008-07-11 2009-07-06 Providing a Time Warp Activation Signal and Encoding an Audio Signal Therewith
JP2011517015A JP5538382B2 (en) 2008-07-11 2009-07-06 Audio signal encoder, audio signal decoder, method for encoding audio signal, method for decoding audio signal, and computer program
TW098123433A TWI463484B (en) 2008-07-11 2009-07-10 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
ARP090102631A AR072740A1 (en) 2008-07-11 2009-07-13 SUPPLIER OF THE TIME DISTORSION ACTIVATION SIGNAL AUDIO SIGNAL CODING METHOD, METHOD TO PROVIDE A TIME DISTORSION ACTIVATION SIGNAL METHOD FOR CODING AN AUDIO SIGNAL AND COMPUTER PROGRAMS
US13/004,525 US9015041B2 (en) 2008-07-11 2011-01-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
HK11109868.7A HK1155551A1 (en) 2008-07-11 2011-09-20 Providing a time warp activation signal and encoding an audio signal therewith
US14/538,748 US9293149B2 (en) 2008-07-11 2014-11-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
US14/538,735 US9431026B2 (en) 2008-07-11 2014-11-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
US14/538,741 US9466313B2 (en) 2008-07-11 2014-11-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
US14/538,728 US9263057B2 (en) 2008-07-11 2014-11-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
US14/538,751 US9502049B2 (en) 2008-07-11 2014-11-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs
US14/538,756 US9646632B2 (en) 2008-07-11 2014-11-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7987308P 2008-07-11 2008-07-11
US61/079,873 2008-07-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/004,525 Continuation US9015041B2 (en) 2008-07-11 2011-01-11 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs

Publications (2)

Publication Number Publication Date
WO2010003618A2 WO2010003618A2 (en) 2010-01-14
WO2010003618A3 true WO2010003618A3 (en) 2010-03-25

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PCT/EP2009/004874 WO2010003618A2 (en) 2008-07-11 2009-07-06 Time warp activation signal provider, audio signal encoder, method for providing a time warp activation signal, method for encoding an audio signal and computer programs

Country Status (18)

Country Link
US (7) US9015041B2 (en)
EP (5) EP2410521B1 (en)
JP (5) JP5538382B2 (en)
KR (5) KR101400484B1 (en)
CN (5) CN102150201B (en)
AR (8) AR072740A1 (en)
AT (1) ATE539433T1 (en)
AU (1) AU2009267433B2 (en)
BR (1) BRPI0910790A2 (en)
CA (5) CA2730239C (en)
ES (5) ES2654433T3 (en)
HK (5) HK1155551A1 (en)
MX (1) MX2011000368A (en)
PL (4) PL2410521T3 (en)
PT (3) PT2410522T (en)
RU (5) RU2536679C2 (en)
TW (1) TWI463484B (en)
WO (1) WO2010003618A2 (en)

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