CA2415424A1 - Method for error masking of transmission errors in digital audio data - Google Patents

Method for error masking of transmission errors in digital audio data Download PDF

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Publication number
CA2415424A1
CA2415424A1 CA002415424A CA2415424A CA2415424A1 CA 2415424 A1 CA2415424 A1 CA 2415424A1 CA 002415424 A CA002415424 A CA 002415424A CA 2415424 A CA2415424 A CA 2415424A CA 2415424 A1 CA2415424 A1 CA 2415424A1
Authority
CA
Canada
Prior art keywords
audio data
error concealment
transmission errors
digital audio
receiver quality
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.)
Granted
Application number
CA002415424A
Other languages
French (fr)
Other versions
CA2415424C (en
Inventor
Claus Kupferschmidt
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.)
Robert Bosch GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2415424A1 publication Critical patent/CA2415424A1/en
Application granted granted Critical
Publication of CA2415424C publication Critical patent/CA2415424C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Circuits Of Receivers In General (AREA)
  • Noise Elimination (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

The invention relates to a method for concealing transmission errors in digital audio data. The inventive method is used to initialise an error concealment with starting values, said error concealment being then adapted by receiver quality which is determined on the basis of the currently received digital audio data. The error concealment is carried out according to channe l decoding, by equalising the audio spectrum. The starting values are calculat ed either on the basis of the currently calculated receiver quality or receiver quality from a pre-set audio channel. In addition, the channel error protection level of both audio channels is compared. The receiver quality is determined by the bit error rate, and/or the number of scale factor errors, and/or the number of check sum errors. The pre-set audio channel can also be an FM audio channel. The storage time for the amount of transmission errors in the pre-set audio channel is taken into account during the initialisation of the error concealment.
CA002415424A 2000-07-18 2001-07-13 Method for error masking of transmission errors in digital audio data Expired - Fee Related CA2415424C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10034783A DE10034783A1 (en) 2000-07-18 2000-07-18 Method for concealing transmission errors in digital audio data
DE10034783.5 2000-07-18
PCT/DE2001/002557 WO2002007149A1 (en) 2000-07-18 2001-07-13 Method for concealing transmission errors in digital audio data

Publications (2)

Publication Number Publication Date
CA2415424A1 true CA2415424A1 (en) 2003-01-08
CA2415424C CA2415424C (en) 2007-10-02

Family

ID=7649242

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002415424A Expired - Fee Related CA2415424C (en) 2000-07-18 2001-07-13 Method for error masking of transmission errors in digital audio data

Country Status (6)

Country Link
EP (1) EP1303856B1 (en)
JP (1) JP4813747B2 (en)
CA (1) CA2415424C (en)
DE (2) DE10034783A1 (en)
ES (1) ES2228914T3 (en)
WO (1) WO2002007149A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10439745B2 (en) * 2016-12-22 2019-10-08 Nxp B.V. Error concealment
US10567099B2 (en) 2016-12-22 2020-02-18 Nxp B.V. Receive path quality information

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE527866C2 (en) * 2003-12-19 2006-06-27 Ericsson Telefon Ab L M Channel signal masking in multi-channel audio system
US7835916B2 (en) 2003-12-19 2010-11-16 Telefonaktiebolaget Lm Ericsson (Publ) Channel signal concealment in multi-channel audio systems
WO2021200151A1 (en) * 2020-03-30 2021-10-07 ソニーグループ株式会社 Transmission device, transmission method, reception device, and reception method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2507972B2 (en) * 1993-08-20 1996-06-19 日本電気株式会社 Line quality monitoring device
JPH08242215A (en) * 1995-03-06 1996-09-17 Mitsubishi Electric Corp Digital sound broadcasting receiver
JP3345557B2 (en) * 1996-10-14 2002-11-18 アルパイン株式会社 Digital audio broadcast receiving apparatus and receiving method
DE19959037B4 (en) * 1999-12-08 2004-04-29 Robert Bosch Gmbh Process for decoding digital audio data

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10439745B2 (en) * 2016-12-22 2019-10-08 Nxp B.V. Error concealment
US10567099B2 (en) 2016-12-22 2020-02-18 Nxp B.V. Receive path quality information

Also Published As

Publication number Publication date
DE10034783A1 (en) 2002-02-07
JP2004504744A (en) 2004-02-12
WO2002007149A1 (en) 2002-01-24
EP1303856A1 (en) 2003-04-23
ES2228914T3 (en) 2005-04-16
DE50104018D1 (en) 2004-11-11
CA2415424C (en) 2007-10-02
JP4813747B2 (en) 2011-11-09
EP1303856B1 (en) 2004-10-06

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EEER Examination request
MKLA Lapsed

Effective date: 20160713