DE69533881D1 - Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate - Google Patents

Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate

Info

Publication number
DE69533881D1
DE69533881D1 DE69533881T DE69533881T DE69533881D1 DE 69533881 D1 DE69533881 D1 DE 69533881D1 DE 69533881 T DE69533881 T DE 69533881T DE 69533881 T DE69533881 T DE 69533881T DE 69533881 D1 DE69533881 D1 DE 69533881D1
Authority
DE
Germany
Prior art keywords
rate
selecting
vocoder
frames
encoded
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69533881T
Other languages
English (en)
Other versions
DE69533881T2 (de
Inventor
Andrew P Dejaco
William R Gardner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23106989&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69533881(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of DE69533881D1 publication Critical patent/DE69533881D1/de
Publication of DE69533881T2 publication Critical patent/DE69533881T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G10L19/02—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
    • G10L19/0208—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
    • G10L19/02—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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered 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
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • 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
DE69533881T 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate Expired - Lifetime DE69533881T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/288,413 US5742734A (en) 1994-08-10 1994-08-10 Encoding rate selection in a variable rate vocoder
US288413 1994-08-10

Publications (2)

Publication Number Publication Date
DE69533881D1 true DE69533881D1 (de) 2005-01-27
DE69533881T2 DE69533881T2 (de) 2006-01-12

Family

ID=23106989

Family Applications (5)

Application Number Title Priority Date Filing Date
DE69534285T Expired - Lifetime DE69534285T3 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit variabler Rate
DE69533881T Expired - Lifetime DE69533881T2 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate
DE69535452T Expired - Lifetime DE69535452T2 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate
DE69530066T Expired - Lifetime DE69530066T2 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
DE69535709T Expired - Lifetime DE69535709T2 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate bei einem Vokoder mit variabler Rate

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69534285T Expired - Lifetime DE69534285T3 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit variabler Rate

Family Applications After (3)

Application Number Title Priority Date Filing Date
DE69535452T Expired - Lifetime DE69535452T2 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate in einem Vocoder mit Variabler Rate
DE69530066T Expired - Lifetime DE69530066T2 (de) 1994-08-10 1995-08-01 Verfahren und vorrichtung zur auswahl der kodierrate in einem vocoder mit variabler rate
DE69535709T Expired - Lifetime DE69535709T2 (de) 1994-08-10 1995-08-01 Verfahren und Vorrichtung zur Auswahl der Kodierrate bei einem Vokoder mit variabler Rate

Country Status (20)

Country Link
US (1) US5742734A (de)
EP (6) EP1233408B1 (de)
JP (8) JP3502101B2 (de)
KR (3) KR100455826B1 (de)
CN (5) CN1320521C (de)
AT (5) ATE358871T1 (de)
AU (1) AU711401B2 (de)
BR (2) BR9506036A (de)
CA (3) CA2171009C (de)
DE (5) DE69534285T3 (de)
DK (3) DK0728350T3 (de)
ES (5) ES2240602T5 (de)
FI (5) FI117993B (de)
HK (2) HK1015185A1 (de)
IL (1) IL114874A (de)
MX (1) MX9600920A (de)
PT (3) PT728350E (de)
TW (1) TW277189B (de)
WO (1) WO1996005592A1 (de)
ZA (1) ZA956081B (de)

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