Speech is a biosignal that is amenable to general biosignal processing methodologies such as frequency domain processing. This is supported today by the availability of inexpensive digital multimedia hardware and by the developments of the theoretical aspects of signal processing. However, sound processing must be also regarded through the prism of the psychoacoustic reality of the human hearin...

When the talker’s face (visual speech) can be seen, speech perception is both facilitated (for congruent visual speech) and interfered with (for incongruent visual speech). The current study investigated whether the degree of these visual speech effects was affected by the presence of an additional irrelevant talking face. In the experiment, auditory speech targets (vCv syllables) were presente...

1. Introduction When listening to a lecture in a large auditorium it is often difficult to understand the speech. Among other factors, comprehension may be impaired by reverberation, which is sound reflecting from the wall, interfering with direct sound. Based on the modulation transfer function (MTF), the speech transmission index (STI) has been proposed as an objective measure for speech inte...

In contrast with for example audiovisual speech, the relation between visual and auditory properties of letters and speech sounds is artificial and learned only by explicit instruction. The arbitrariness of the audiovisual link together with the widespread usage of letter-speech sound pairs in alphabetic languages makes those audiovisual objects a unique subject for crossmodal research. Brain i...

This document outlines the needs and requirements for a protocol to control distributed speech processing of audio streams. By speech processing, this document specifically means automatic speech recognition (ASR), speaker recognition -which includes both speaker identification (SI) and speaker verification (SV) -and text-to-speech (TTS). Other IETF protocols, such as SIP and Real Time Streamin...

In general, self help systems are being increasingly deployed by service based industries because they are capable of delivering better customer service and increasingly the switch is to voice based self help systems because they provide a natural interface for a human to interact with a machine. A speech based self help system ideally needs a speech recognition engine to convert spoken speech ...