ATE348387T1 - Halbrätiger vocoder - Google Patents

Halbrätiger vocoder

Info

Publication number
ATE348387T1
ATE348387T1 AT04251796T AT04251796T ATE348387T1 AT E348387 T1 ATE348387 T1 AT E348387T1 AT 04251796 T AT04251796 T AT 04251796T AT 04251796 T AT04251796 T AT 04251796T AT E348387 T1 ATE348387 T1 AT E348387T1
Authority
AT
Austria
Prior art keywords
bits
bit stream
voicing
pitch
information
Prior art date
Application number
AT04251796T
Other languages
English (en)
Inventor
John C Hardwick
Original Assignee
Digital Voice Systems 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
Application filed by Digital Voice Systems Inc filed Critical Digital Voice Systems Inc
Application granted granted Critical
Publication of ATE348387T1 publication Critical patent/ATE348387T1/de

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
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/04—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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/04—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
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Led Device Packages (AREA)
  • Container Filling Or Packaging Operations (AREA)
AT04251796T 2003-04-01 2004-03-26 Halbrätiger vocoder ATE348387T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/402,938 US8359197B2 (en) 2003-04-01 2003-04-01 Half-rate vocoder

Publications (1)

Publication Number Publication Date
ATE348387T1 true ATE348387T1 (de) 2007-01-15

Family

ID=32850558

Family Applications (2)

Application Number Title Priority Date Filing Date
AT06076855T ATE433183T1 (de) 2003-04-01 2004-03-26 Sprachdekodierung
AT04251796T ATE348387T1 (de) 2003-04-01 2004-03-26 Halbrätiger vocoder

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT06076855T ATE433183T1 (de) 2003-04-01 2004-03-26 Sprachdekodierung

Country Status (6)

Country Link
US (2) US8359197B2 (de)
EP (2) EP1465158B1 (de)
JP (1) JP2004310088A (de)
AT (2) ATE433183T1 (de)
CA (1) CA2461704C (de)
DE (2) DE602004021438D1 (de)

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US8452606B2 (en) * 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
US8249865B2 (en) * 2009-11-23 2012-08-21 Airbiquity Inc. Adaptive data transmission for a digital in-band modem operating over a voice channel
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US20230005498A1 (en) * 2021-07-02 2023-01-05 Digital Voice Systems, Inc. Detecting and Compensating for the Presence of a Speaker Mask in a Speech Signal
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US8359197B2 (en) * 2003-04-01 2013-01-22 Digital Voice Systems, Inc. Half-rate vocoder

Also Published As

Publication number Publication date
EP1748425B1 (de) 2009-06-03
US20130144613A1 (en) 2013-06-06
DE602004021438D1 (de) 2009-07-16
EP1465158B1 (de) 2006-12-13
CA2461704A1 (en) 2004-10-01
DE602004003610D1 (de) 2007-01-25
US8359197B2 (en) 2013-01-22
CA2461704C (en) 2010-12-21
EP1465158A2 (de) 2004-10-06
EP1748425A3 (de) 2007-05-09
ATE433183T1 (de) 2009-06-15
DE602004003610T2 (de) 2007-04-05
US20050278169A1 (en) 2005-12-15
EP1748425A2 (de) 2007-01-31
JP2004310088A (ja) 2004-11-04
US8595002B2 (en) 2013-11-26
EP1465158A3 (de) 2005-09-21

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