BR112012011452A2 - estimativa de tempo perceptivo de complexidade escalonável - Google Patents

estimativa de tempo perceptivo de complexidade escalonável

Info

Publication number
BR112012011452A2
BR112012011452A2 BR112012011452A BR112012011452A BR112012011452A2 BR 112012011452 A2 BR112012011452 A2 BR 112012011452A2 BR 112012011452 A BR112012011452 A BR 112012011452A BR 112012011452 A BR112012011452 A BR 112012011452A BR 112012011452 A2 BR112012011452 A2 BR 112012011452A2
Authority
BR
Brazil
Prior art keywords
audio signal
time
bit stream
audio
payload
Prior art date
Application number
BR112012011452A
Other languages
English (en)
Inventor
Arijit Biswas
Danilo Hollosi
Michael Schug
Original Assignee
Dolby Int Ab
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 Dolby Int Ab filed Critical Dolby Int Ab
Publication of BR112012011452A2 publication Critical patent/BR112012011452A2/pt

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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements
    • G10H1/40—Rhythm
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/076—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for extraction of timing, tempo; Beat detection
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/005—Device type or category
    • G10H2230/015—PDA [personal digital assistant] or palmtop computing devices used for musical purposes, e.g. portable music players, tablet computers, e-readers or smart phones in which mobile telephony functions need not be used
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/075—Musical metadata derived from musical analysis or for use in electrophonic musical instruments

Abstract

patente de invenção: estimativa de tempo perceptivo de complexidade escalonável. a presente invenção refere-se a método e sistemas para a estimativa do tempo de um sinal de mídia, tal como um áudio o um sinal de áudio/vídeo combinado. em particular, o documento se refere à estimativa de tempo percebido por ouvintes humanos, bem como a métodos e sistemas para estimativa de tempo em complexidade computacional escalonável. um método e um sistema para extração de uma informação de tempo de um sinal de áudio a partir de um fluxo de bit codificado do sinal de áudio compreendendo dados de réplica de banda espectral são descritos. o método compreende as etapas de determinação de uma quantidade de carga útil associada à quantidade de dados de replicação de banda espectral compreendidos no fluxo de bit codificado para um intervalo de tempo do sinal de áudio; a repetição da etapa de determinação para intervalos de tempo sucessivos do fluxo de bit codificado do sinal de áudio, desse modo se determinando uma sequência de quantidades de carga útil; a identificação de uma periodicidade na sequência de quantidades de carga útil; e a extração de uma informação de tempo do sinal de áudio a partir da periodicidade identificada.
BR112012011452A 2009-10-30 2010-10-26 estimativa de tempo perceptivo de complexidade escalonável BR112012011452A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25652809P 2009-10-30 2009-10-30
PCT/EP2010/066151 WO2011051279A1 (en) 2009-10-30 2010-10-26 Complexity scalable perceptual tempo estimation

Publications (1)

Publication Number Publication Date
BR112012011452A2 true BR112012011452A2 (pt) 2016-05-03

Family

ID=43431930

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012011452A BR112012011452A2 (pt) 2009-10-30 2010-10-26 estimativa de tempo perceptivo de complexidade escalonável

Country Status (10)

Country Link
US (1) US9466275B2 (pt)
EP (2) EP2494544B1 (pt)
JP (2) JP5295433B2 (pt)
KR (2) KR101612768B1 (pt)
CN (2) CN104157280A (pt)
BR (1) BR112012011452A2 (pt)
HK (1) HK1168460A1 (pt)
RU (2) RU2507606C2 (pt)
TW (1) TWI484473B (pt)
WO (1) WO2011051279A1 (pt)

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Also Published As

Publication number Publication date
EP2494544A1 (en) 2012-09-05
RU2013146355A (ru) 2015-04-27
RU2012117702A (ru) 2013-11-20
EP2494544B1 (en) 2015-09-02
CN104157280A (zh) 2014-11-19
EP2988297A1 (en) 2016-02-24
US20120215546A1 (en) 2012-08-23
KR101612768B1 (ko) 2016-04-18
RU2507606C2 (ru) 2014-02-20
WO2011051279A1 (en) 2011-05-05
JP5543640B2 (ja) 2014-07-09
KR20140012773A (ko) 2014-02-03
HK1168460A1 (en) 2012-12-28
JP2013225142A (ja) 2013-10-31
CN102754147B (zh) 2014-10-22
TW201142818A (en) 2011-12-01
KR20120063528A (ko) 2012-06-15
TWI484473B (zh) 2015-05-11
US9466275B2 (en) 2016-10-11
CN102754147A (zh) 2012-10-24
JP2013508767A (ja) 2013-03-07
KR101370515B1 (ko) 2014-03-06
JP5295433B2 (ja) 2013-09-18

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