A new approach for single channel speech enhancement based on Kalman filtering and masking properties of the human auditory system is proposed in the paper. A standard time-varying Kalman filtering method is extended by combining the calculation of noise masking thresholds during the process of parameter updating. Simulation results of a traditional spectral subtraction method, an extended spec...

The paper presents experiments on the use of the perceptual objective measure – ITU-T Rec. P.862 Perceptual Evaluation of Speech Quality (PESQ), for the automatic evaluation of synthetic speech. The approach is based on the evaluation of the statistically significant correlation between the outputs of subjective and objective tests. We propose the following technique to evaluate the usage of th...

This paper presents an objective speech quality model, ViSQOL, the Virtual Speech Quality Objective Listener. It is a signal-based, full-reference, intrusive metric that models human speech quality perception using a spectro-temporal measure of similarity between a reference and a test speech signal. The metric has been particularly designed to be robust for quality issues associated with Voice...

On the Quality of Experience (QoE) evaluation of communication system, the quality of speech is an important factor to evaluate the system. Perceptual evaluation of speech quality (PESQ) is a well known objective speech quality assessment method for the voice QoE evaluation. It is proposed by International Telecommunication Union (ITU) and is formed as the ITU-T P.862 Recommendations. PESQ appl...

An objective quality measurement methodology for wideband-speech coding has been studied, its essential components being an objective quality measure and an input test signal. Wideband-PESQ conforming to draft Recommendation P.862 has been studied as the objective quality measure. The Wideband-PESQ has been verified from the viewpoint of the consistency between subjectively evaluated MOS and ob...

Consumer virtual reality (VR) technologies have made embodying a avatar during an immersive experience more feasible. The sense of embodiment toward that can be characterized and measured along three factors: self-location, agency, body ownership. Some measures been previously proposed, but most not validated or do measure the individual factors embodiment. In this paper, we present constructio...

An auditory-motivated noise reduction methodology is proposed based on the inhibitory property of the human auditory system. The proposed psychoacoustic spectral subtraction method utilizes non-linearly and spatially distributed inhibitory weights which are determined based on the critical bands of the auditory system. Moreover, the weights are adjusted based on the segmental a posteriori SNR, ...

Narrow band MSK(Minimum Shift Keying) radio is applied for high receiving sensitive wireless communications like “walky-talky”. iLBC (internet Low Bit-rate Codec) is widely used in VoIP (Voice over IP) applications like “Skype”. This paper is concerned with the speech quality by using iLBC in narrow band MSK wireless communication. Several ULP (Uneven Level Protection) strategies to protect dif...

Artificial bandwidth extension (ABE) methods have been developed to enhance the quality and intelligibility of bandlimited speech transmitted over a telephone connection. Subjective listening tests are the most reliable way of evaluating the quality of ABE, but listening tests are time-consuming and expensive to arrange. Instrumental measures have also been used to estimate the subjective quali...

Wireless-VoIP communications introduce perceptual degradations that are not present with traditional VoIP communications. This paper investigates the effects of such degradations on the performance of three state-of-the-art standard objective quality measurement algorithms—PESQ, P.563, and an “extended” E-model. The comparative study suggests that measurement performance is significantly affect...