AR024536A1 - Metodo para codificar y metodos para decodificar un primer bloque de audio y un segundo bloque de audio - Google Patents

Metodo para codificar y metodos para decodificar un primer bloque de audio y un segundo bloque de audio

Info

Publication number
AR024536A1
AR024536A1 ARP000100814A AR024536A1 AR 024536 A1 AR024536 A1 AR 024536A1 AR P000100814 A ARP000100814 A AR P000100814A AR 024536 A1 AR024536 A1 AR 024536A1
Authority
AR
Argentina
Prior art keywords
audio
block
audio block
frequency
decoding
Prior art date
Application number
Other languages
English (en)
Original Assignee
Nielsen Media Res 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
Priority claimed from US09/428,425 external-priority patent/US7006555B1/en
Application filed by Nielsen Media Res Inc filed Critical Nielsen Media Res Inc
Publication of AR024536A1 publication Critical patent/AR024536A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/37—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying segments of broadcast information, e.g. scenes or extracting programme ID
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/50—Aspects of broadcast communication characterised by the use of watermarks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Bloques de audio son codificados en base a la correspondiente primera frecuencia y segunda frecuencia. La primera frecuencia y la segunda frecuencia sonsalteadas de bloque en bloque. Una medida de calidad de audio (AQM) es computada para cada bloquede audio de modo que si x de y bloques de audio tienen unaAQM mayor que un primer umbral predeterminado, la decodificacion es suspendida. Por ejemplo, x puede ser nuevo e y puede ser 16. Asimismo, si una relacion dela energía en una parte frontal deun bloque de audio a la energía en su parte posterior del bloque de audio es mayor que un segundo umbral predeterminado,este bloque de audio no es codificado aunque x de y bloques de audio tengan una AQM mayor que el primer umbral predeterminado. Multiples distribuidores deaudio pueden codificar el audio con sus correspondientes identidades utilizando los procesos antes indicados.
ARP000100814 1999-10-27 2000-02-25 Metodo para codificar y metodos para decodificar un primer bloque de audio y un segundo bloque de audio AR024536A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/428,425 US7006555B1 (en) 1998-07-16 1999-10-27 Spectral audio encoding

Publications (1)

Publication Number Publication Date
AR024536A1 true AR024536A1 (es) 2002-10-16

Family

ID=23698845

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP000100814 AR024536A1 (es) 1999-10-27 2000-02-25 Metodo para codificar y metodos para decodificar un primer bloque de audio y un segundo bloque de audio

Country Status (5)

Country Link
EP (1) EP1277295A1 (es)
AR (1) AR024536A1 (es)
AU (1) AU2881300A (es)
WO (1) WO2001031816A1 (es)
ZA (1) ZA200204027B (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2809775C (en) 1999-10-27 2017-03-21 The Nielsen Company (Us), Llc Audio signature extraction and correlation
CN1575613B (zh) 2000-11-30 2010-05-12 因特拉松尼克斯有限公司 通信系统
WO2003061285A2 (en) 2001-12-24 2003-07-24 Scientific Generics Limited Captioning system
FR2835125B1 (fr) * 2002-01-24 2004-06-18 Telediffusion De France Tdf Procede d'evaluation d'un signal audio numerique
US8406341B2 (en) 2004-01-23 2013-03-26 The Nielsen Company (Us), Llc Variable encoding and detection apparatus and methods
WO2006037014A2 (en) 2004-09-27 2006-04-06 Nielsen Media Research, Inc. Methods and apparatus for using location information to manage spillover in an audience monitoring system
CA2956981C (en) * 2005-03-08 2019-05-21 The Nielsen Company (Us), Llc Variable encoding and detection apparatus and methods
US10885543B1 (en) 2006-12-29 2021-01-05 The Nielsen Company (Us), Llc Systems and methods to pre-scale media content to facilitate audience measurement
GB2460306B (en) 2008-05-29 2013-02-13 Intrasonics Sarl Data embedding system
US8855101B2 (en) 2010-03-09 2014-10-07 The Nielsen Company (Us), Llc Methods, systems, and apparatus to synchronize actions of audio source monitors
US8885842B2 (en) 2010-12-14 2014-11-11 The Nielsen Company (Us), Llc Methods and apparatus to determine locations of audience members
US9021516B2 (en) 2013-03-01 2015-04-28 The Nielsen Company (Us), Llc Methods and systems for reducing spillover by measuring a crest factor
US9118960B2 (en) 2013-03-08 2015-08-25 The Nielsen Company (Us), Llc Methods and systems for reducing spillover by detecting signal distortion
US9219969B2 (en) 2013-03-13 2015-12-22 The Nielsen Company (Us), Llc Methods and systems for reducing spillover by analyzing sound pressure levels
US9191704B2 (en) 2013-03-14 2015-11-17 The Nielsen Company (Us), Llc Methods and systems for reducing crediting errors due to spillover using audio codes and/or signatures
US9219928B2 (en) 2013-06-25 2015-12-22 The Nielsen Company (Us), Llc Methods and apparatus to characterize households with media meter data
US9426525B2 (en) 2013-12-31 2016-08-23 The Nielsen Company (Us), Llc. Methods and apparatus to count people in an audience
US9924224B2 (en) 2015-04-03 2018-03-20 The Nielsen Company (Us), Llc Methods and apparatus to determine a state of a media presentation device
US9848222B2 (en) 2015-07-15 2017-12-19 The Nielsen Company (Us), Llc Methods and apparatus to detect spillover
CN111326168B (zh) * 2020-03-25 2023-08-22 合肥讯飞数码科技有限公司 语音分离方法、装置、电子设备和存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972471A (en) * 1989-05-15 1990-11-20 Gary Gross Encoding system
FR2681997A1 (fr) * 1991-09-30 1993-04-02 Arbitron Cy Procede et dispositif d'identification automatique d'un programme comportant un signal sonore.
GB2292506B (en) * 1991-09-30 1996-05-01 Arbitron Company The Method and apparatus for automatically identifying a program including a sound signal
US6272176B1 (en) * 1998-07-16 2001-08-07 Nielsen Media Research, Inc. Broadcast encoding system and method

Also Published As

Publication number Publication date
WO2001031816A1 (en) 2001-05-03
EP1277295A1 (en) 2003-01-22
ZA200204027B (en) 2003-08-20
AU2881300A (en) 2001-05-08

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