METHOD OF REDUCING TRANSMISSION RATE OF LINEAR PREDICTION LOW BIT RATE VODERS Russian patent published in 2013 - IPC G10L19/08 

Abstract RU 2495504 C1

FIELD: information technology.

SUBSTANCE: objective set in a linear prediction vocoder is achieved by avoiding transmission of drive signal information over a communication channel. The drive signal is identified immediately at reception from data on parameters of the synthesising model using a neural network. Information on coefficients of the forming model, gain factor, parameters which characterise the encoded speech signal which are calculated on each quasi-stationary analysis segment of the speech signal are transmitted over the communication channel.

EFFECT: low transmission rate of a low bit rate linear prediction vocoder with efficient encoding of speech signals, while maintaining quality factors of the synthesised signal.

3 dwg

Similar patents RU2495504C1

Title Year Author Number
METHOD OF LOW-SPEED CODING AND DECODING SPEECH SIGNAL 2015
  • Afanasev Andrej Alekseevich
  • Korobovskij Evgenij Sergeevich
RU2631968C2
METHOD FOR GENERATION OF EXCITATION SIGNAL IN LOW-SPEED VOCODERS WITH LINEAR PREDICTION 2008
  • Afanas'Ev Andrej Alekseevich
  • Konyshev Mikhail Jur'Evich
  • Ul'Janov Il'Ja Vladimirovich
RU2400832C2
METHOD OF COMPRESSING AND RECONSTRUCTING SPEECH SIGNALS FOR CODING SYSTEM WITH VARIABLE TRANSMISSION SPEED 2009
  • Afanas'Ev Andrej Alekseevich
  • Gabdulgaziev Stanislav Ramzesovich
  • Ul'Janov Il'Ja Vladimirovich
RU2394284C1
METHOD AND APPARATUS FOR MULTILEVEL SCALABLE INFORMATION LOSS TOLERANT SPEECH ENCODING FOR PACKET SWITCHED NETWORKS 2009
  • Sviridenko Vladimir Aleksandrovich
RU2464651C2
METHOD OF ENHANCING SYNTHESISED SPEECH PERCEPTION WHEN PERFORMING ANALYSIS THROUGH SYNTHESIS IN LINEAR PREDICTIVE VOCODERS 2010
  • Afanas'Ev Andrej Alekseevich
  • Iljushin Mikhail Vladimirovich
  • Titov Oleg Nikolaevich
RU2445719C2
METHOD AND DEVICE FOR ALTERNATING RATE VOICE CODING USING REDUCED ENCODING RATE 1995
  • Ehndrju P.Dedzhako
RU2146394C1
TIME WARPING FRAMES IN BROADBAND VOCODER 2007
  • Kapur Rokhit
  • Dias Serafin Spindola
RU2414010C2
METHOD OF CREATING CODEBOOK AND SEARCH THEREIN DURING VECTOR QUANTISATION OF DATA 2012
  • Ryzhkov Aleksandr Pavlovich
  • Afanas'Ev Andrej Alekseevich
  • Katkov Oleg Nikolaevich
RU2504027C1
CHANGING TIME-SCALE OF FRAMES IN VOCODER BY CHANGING REMAINDER 2006
  • Kapur Rokhit
  • Dias Spindola Serafin
RU2371784C2
METHOD TO DETERMINE LENGTH OF VOICE SIGNAL CODEC TRANSMISSION FRAME BASED ON LINEAR PREDICTION IN NETWORKS WITH PACKET SWITCHING BASED ON IP-PROTOCOL 2010
  • Afanas'Ev Andrej Alekseevich
  • Titov Oleg Nikolaevich
RU2459373C1

RU 2 495 504 C1

Authors

Afanas'Ev Andrej Alekseevich

Ryzhkov Aleksandr Pavlovich

Dates

2013-10-10Published

2012-06-25Filed