FIELD: computer technology.
SUBSTANCE: invention relates to computer technology for processing audio data. The effect is achieved by comparing the image (m, C) of the input DS with the LRVE, which is formed in accordance with the known j-th protocol, and a single reference image (mj ref, Сj ref) of the j-th class, j=1,2,…,J obtained on the basis of the training sample with the maximum value of the speech signal quality estimate ejmах. The divergence νj is used as a measure of distinguishing between them. Here m, mj ref are the vectors of the mathematical expectation of the analyzed DS and the j-th reference image, respectively, C, Cj et are the covariance matrices of the analyzed DS and the j-th reference image. Based on the functional dependence еj=ƒ(νj), formed at the training stage and described analytically by a power polynomial, with a known value of the divergence vj between the image (m, С) and one reference image (mj ref, Сj ref) of the j-th class, calculating the value of assessing the quality of the investigated DS with LRVE, formed according to the j-th protocol, without conversion to the PCM format.
EFFECT: ensuring automatic assessment of the quality of LRVE signals without converting the investigated digital stream (DS) to the pulse-code modulation (PCM) format, which ensures the establishment of a functional (analytical) relationship between the divergence values and the selected measures of the speech signal quality.
1 cl, 7 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD OF RECOGNITION OF NEW LOW BIT RATE CODING PROTOCOLS | 2020 |
|
RU2748935C1 |
METHOD OF RECOGNIZING LOW-SPEED SPEECH CODING PROTOCOLS | 2017 |
|
RU2667462C1 |
METHOD OF DETECTING LOW-RATE ENCODING PROTOCOLS | 2016 |
|
RU2610285C1 |
METHOD FOR TRANSCRIBING SPEECH FROM DIGITAL SIGNALS WITH LOW-RATE CODING | 2023 |
|
RU2801621C1 |
METHOD OF SELECTING DIGITAL STREAMS | 2018 |
|
RU2701465C1 |
METHOD FOR AUTOMATIC RECOGNITION OF A PERSON WITH USE OF ACOUSTIC SIGNALS, READ FROM BODY OF SAID PERSON | 2003 |
|
RU2263358C2 |
METHOD FOR VECTOR QUANTISATION OF LINEAR PREDICTION PARAMETRES | 2009 |
|
RU2408088C2 |
GEAR DETERMINING RELATIVE POSITION OF MOVING OBJECT BY SIGNALS OF SATELLITE RADIO NAVIGATION SYSTEMS WITH HIGH ACCURACY | 1998 |
|
RU2143123C1 |
METHOD TO DETERMINE LENGTH OF VOICE SIGNAL CODEC TRANSMISSION FRAME BASED ON LINEAR PREDICTION IN NETWORKS WITH PACKET SWITCHING BASED ON IP-PROTOCOL | 2010 |
|
RU2459373C1 |
METHOD AND DEVICE FOR HIGHLY EFFICIENT COMPRESSION OF LARGE-VOLUME MULTIMEDIA INFORMATION BASED ON THE CRITERIA OF ITS VALUE FOR STORING IN DATA STORAGE SYSTEMS | 2016 |
|
RU2654126C2 |
Authors
Dates
2021-10-21—Published
2021-04-09—Filed