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Výsledek výzkumu

An Objective Method for End-to-End Speech Quality Assessment Using PESQ Algorithm

This article focuses on an objective method for end-to-end speech quality assessment using PESQ algorithm.

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006
  • D
Výsledek výzkumu

CDMA2000 Terminal Test Report - PESQ measurement with CDMA simulator

PESQ speech quality testing and measurement of EVRC speech codec end terminals are described in the research report.

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • O
Výsledek výzkumu

An Objective Method for End-to-End Speech Quality Assessment using PESQ Algorithm

This paper focuses on problems of the end-to-end speech quality assessment. Furthermore, this paper deals with the PESQ algorithm described in the ITU-T P.862 Perceptual Evaluation of Speech Quality - PESQ recommendation and describ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2007
  • D
Výsledek výzkumu

Impact of Different Active-Speech-Ratios on PESQ`s Predictions in Case of Independent and Dependent Losses

The relation between Active-Speech-Ratio of input speech sample and PESQ (ITU-T P.862) estimation accuracy is described. It was shown that increasing the ASR may lead to decreasing the PESQ quality prediction accuracy....

BI - Akustika a kmity

  • 2010
  • Jx
Výsledek výzkumu

Automated Speech Quality Monitoring Tool based on Perceptual Evaluation

The paper deals with a speech quality monitoring tool which we have developed in accordance with PESQ (Perceptual Evaluation of Speech Quality) and is automatically-frequency transformation and in PESQ this is modelled by a short te...

IN - Informatika

  • 2012
  • D
Výsledek výzkumu

Objective Assessment of Speech Distribution Quality by means of Unconventional PESQ Application - A Case Study

The article describes non-traditional deployment of ITU-T P.862 (PESQ) algorithm for quality assessment of speech distribution. Subjective and objective results are presented and compared....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006
  • D
Výsledek výzkumu

Impact of Different Active-Speech-Ratios on PESQ's Predictions in Simulated VoIP Environment

In this work, we experimentally study how behaviour of the PESQ predictions varies with reference signal characteristic. In particular we investigate the impact of different Active-Speech-Ratios on speech quality prediction in simulated VoIP...

JB - Senzory, čidla, měření a regulace

  • 2009
  • Jx
Výsledek výzkumu

Effect of speech activity parameter on PESQ's predictions in presence of independent and dependent loses

The paper deals with the investigation of PESQ's (Perceptual Evaluation parameter) may result in an increase of the PESQ sensitivity to packet loss change as well as PESQ's prediction accuracy improvement. On the other hand...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2013
  • Jx
  • Odkaz
Výsledek výzkumu

Predicting the Quality of Synthesized and Natural Speech Impaired by Packet Loss and Coding Using PESQ and P.563 Models

This paper investigates the impact of independent and dependent losses and coding on speech quality predictions provided by PESQ (also known as ITU-T P.862) and P.563 models, when both naturally-produced and synthesized speech are used....

JB - Senzory, čidla, měření a regulace

  • 2011
  • Jx
  • Odkaz
Výsledek výzkumu

Objective speech quality assessment

This paper deals with influence of inappropriate source speech signals on speech quality assessment by PESQ and 3SQM methods. Too long and wrong time shifted signals are tested....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2012
  • O
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