Previous objective speech quality assessment models, such as bark spectral distortion (BSD), the perceptual speech quality measure (PSQM), and measuring normalizing blocks (MNB), have been found to be suitable for assessing only a limited range of distortions. A new model has therefore been developed for use across a wider range of network conditions, including analogue connections, codecs, pac...

The present work was carried out to investigate the relation between a speaker’s age and the quality of the encoded speech for several, well known speech coding techniques and a commercially available vocoder CMX618. For this purpose, a corpus of speech records obtained from speakers of various age and gender groups was created. The PESQ (Perceptual Evaluation of Speech quality) method was used...

This study assessed the acoustic and perceptual effect of noise on male/female speech. Acoustic analysis are carried out on the Hindi language female/male speaker. Various levels of noise ranging from 0 dB to 20 dB are added with the original recorded speech signal. An standard HNM parameters are used to synthesis the noise added signal. Perceptual experiments were also conducted to assess the ...

This paper presents the single channel speech enhancement system using subband Kalman filtering by estimating optimal Autoregressive (AR) coefficients and variance for speech and noise, using Weighted Linear Prediction (WLP) and Noise Weighting Function (NWF). The system is applied for normal and Oesophageal speech signals. The method is evaluated by Perceptual Evaluation of Speech Quality (PES...

Wideband codecs such as AMR-WB or EVS are widely used in (mobile) speech communication. Evaluation of coded quality is often performed subjectively by an absolute category rating (ACR) listening test. However, the ACR test impractical for online monitoring communication networks. Perceptual evaluation (PESQ) one metrics instrumentally predicting results PESQ algorithm requires original referenc...

In order to improve the speech enhancement ability of FullSubNet model, an improved method FullSubNet-pMix is proposed. Specifically, pMix module added structure full-band frequency domain information processing, which realizes interaction between amplitude spectrum and phase spectrum. At same time, hyperparameters used in training are optimized so that sub-band system can play a better role. E...

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

A model of human speech quality perception has been developed to provide an objective measure for predicting subjective quality assessments. The Virtual Speech Quality Objective Listener (ViSQOL) model is a signal based full reference metric that uses a spectro-temporal measure of similarity between a reference and a test speech signal. This paper describes the algorithm and compares the result...