METHOD AND DEVICE FOR CONVERTING SPEECH SIGNAL BY METHOD OF LINEAR PREDICTION WITH ADAPTIVE DISTRIBUTION OF INFORMATION RESOURCES Russian patent published in 2005 - IPC

Abstract RU 2248619 C2

FIELD: electric communications.

SUBSTANCE: method uses acoustic-phonetic classification of processed speech signal cadres as four non-crossing classes - absence of speech, vocalized speech, non-vocalized speech and transfer to vocalized speech. This classification is made concurrently with identification of filter of short-time linear prediction, and on basis of results information resources are adaptively distributed among encoded parameters. Classification decision is included into code combination structure for transfer along communication channel and is used to determine modes of vector quantizer and dequantizer, trained for each class of voice cadres.

EFFECT: higher quality.

2 cl, 8 dwg

Similar patents RU2248619C2

Title Year Author Number
METHOD OF VOICE SIGNAL VARIABLE-STRUCTURE SYSTEM-BASED ADAPTIVE ENCODING 2006
  • Afanas'Ev Andrej Alekseevich
  • Bogachev Gennadij Vasil'Evich
  • Basov Oleg Olegovich
RU2343564C2
METHOD AND DEVICE FOR EFFICIENT MASKING OF DELETION OF FRAMES IN SPEECH CODECS 2006
  • Vajankur Tommi
  • Zhelinek Milan
  • Gurnaj Filipp
  • Salami Redvan
RU2419891C2
METHOD FOR VECTOR QUANTISATION OF LINEAR PREDICTION PARAMETRES 2009
  • Ivanov Vladimir Alekseevich
  • Saitov Igor' Akramovich
  • Basov Oleg Olegovich
  • Subotenko Aleksandr Vladimirovich
  • Basov Vladimir Olegovich
RU2408088C2
METHOD AND DEVICE FOR VECTOR QUANTISATION WITH RELIABLE PREDICTION OF LINEAR PREDICTION PARAMETERS IN VOICE CODING AT VARIABLE BIT RATE 2003
  • Zhelinek Milan
RU2326450C2
METHOD AND APPARATUS FOR MULTILEVEL SCALABLE INFORMATION LOSS TOLERANT SPEECH ENCODING FOR PACKET SWITCHED NETWORKS 2009
  • Sviridenko Vladimir Aleksandrovich
RU2464651C2
DECISION ON PRESENCE/ABSENCE OF VOCALIZATION FOR SPEECH PROCESSING 2014
  • Gao Yan
RU2636685C2
METHOD TO CODE BROADBAND VOICE SIGNAL 2009
  • Iljushin Mikhail Vladimirovich
  • Basov Oleg Olegovich
  • Rybolovlev Aleksandr Arkad'Evich
RU2419169C1
IMPROVEMENT OF CLASSIFICATION BETWEEN TIME-DOMAIN CODING AND FREQUENCY-DOMAIN CODING 2015
  • Gao Yan
RU2667382C2
METHOD AND DEVICE FOR QUANTIZING AMPLIFICATION IN BROADBAND SPEECH ENCODING WITH ALTERNATING BITRATE 2004
  • Zhelinek Milan
  • Salami Redvan
RU2316059C2
METHOD AND DEVICE TO CODE TRANSITION FRAMES IN VOICE SIGNALS 2007
  • Ehksler Vatslav
  • Elinek Milan
  • Salami Redvan
RU2462769C2

RU 2 248 619 C2

Authors

Rybolovlev A.A.

Bogachev G.V.

Trubitsyn V.G.

Azarov I.A.

Dates

2005-03-20Published

2003-02-12Filed