Perceived conversational speech quality is a key quality of service (QoS) metric for voice over IP (VoIP) applications. Speech quality is mainly affected by network impairments, such as delay, jitter and packet loss. Playout buffer algorithms are used to compensate for jitter, based on a tradeoff between delay and loss, but can have a significant effect on perceived quality. The main aim in thi...

UNLABELLED ᅟ: Mucopolysaccharidosis type III (MPS III; Sanfilippo syndrome) is a metabolic disorder characterized by the deficiency of a lysosomal enzyme catalyzing the catabolic pathway of heparan sulphate. MPS III presents with progressive mental deterioration, speech delay and behavioural problems with subtle somatic features, which can often lead to misdiagnosis with idiopathic developmenta...

In the development of a syllable-centric Automatic Speech Recognition (ASR) system, segmentation of the acoustic signal into syllabic units is an important stage. Although the short-term energy (STE) function contains useful information about syllable segment boundaries, it has to be processed before segment boundaries can be extracted. This paper presents a sub-band based group delay approach ...

EEG coherence as a measure of synchronization of brain activity was used to investigate effects of irrelevant speech. In a delayed serial recall paradigm 21 healthy participants retained verbal items over a 10-s delay with and without interfering irrelevant speech. Recall after the delay was varied in two modes (spoken vs. written). Behavioral data showed the classic irrelevant speech effect an...

One of the most frequently used methods in the speech disfluence therapy is the one based on the acoustical echo. A patient, who is a subject to therapy, hears his own voice with some delay and, thanks to that, his speech fluency increases. As it turned out a therapeutic effect can also be achieved by feedback of the speech with other human senses, such as touch or sight. The article presents a...

One of the most frequently used methods in the speech disfluence therapy is the one based on the acoustical echo. A patient, who is a subject to therapy, hears his own voice with some delay and, thanks to that, his speech fluency increases. As it turned out a therapeutic effect can also be achieved by feedback of the speech with other human senses, such as touch or sight. The article presents a...

One of the most frequently used methods in the speech disfluence therapy is the one based on the acoustical echo. A patient, who is a subject to therapy, hears his own voice with some delay and, thanks to that, his speech fluency increases. As it turned out a therapeutic effect can also be achieved by feedback of the speech with other human senses, such as touch or sight. The article presents a...

One of the most frequently used methods in the speech disfluence therapy is the one based on the acoustical echo. A patient, who is a subject to therapy, hears his own voice with some delay and, thanks to that, his speech fluency increases. As it turned out a therapeutic effect can also be achieved by feedback of the speech with other human senses, such as touch or sight. The article presents a...

This paper presents asymmetric-shaped tapers (or windows) for speaker recognition. Symmetric tapers (e.g., hamming), having the linear phase property and longer time delay, are widely used for short-time analysis of speech signals. Since human speech perception is relatively insensitive to short-time phase distortion, the linearity constraint on phase can be removed without any adverse effects....

A time delay estimator for a multi-microphone speech enhancement system with 16 microphones is presented. It is based on a generalized cross-correlator and an improved peak detector. The problems associated with delay estimation in noisy speech signals are solved by performing a speaker localization and a plausibility check of the time delays derived from the speaker position. By applying these...