Journal ArticleDOI
Speech-quality assessment methods for speech-coding systems
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This article is published in IEEE Communications Magazine.The article was published on 1984-10-01. It has received 50 citations till now. The article focuses on the topics: Voice activity detection & PSQM.read more
Citations
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Signal compression based on models of human perception
TL;DR: It is proposed that fundamental limits in the science can be expressed by the semiquantitative concepts of perceptual entropy and the perceptual distortion-rate function, and current compression technology is examined in that framework.
Book
Single- and Multi-carrier Quadrature Amplitude Modulation : Principles and Applications for Personal Communications, WLANs and Broadcasting
TL;DR: In this article, the authors provide an overview of most major single and multi-carrier Quadrature Amplitude Modulation (QAM) techniques commencing with simple QAM schemes for the uninitiated through to complex, rapidly-evolving areas, such as arrangements for wideband mobile channels.
Journal ArticleDOI
Suppression of Late Reverberation Effect on Speech Signal Using Long-Term Multiple-step Linear Prediction
TL;DR: A room impulse response is assumed to consist of three parts: a direct-path response, early reflections and late reverberations, which is known to be a major cause of ASR performance degradation.
Journal ArticleDOI
Signal compression: technology targets and research directions
TL;DR: A description of technology targets in signal compression and a nonexhaustive account of research directions that may lead toward these targets are presented and opportunities for integrating source coding and channel coding technologies are pointed out.
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Bandwidth-efficient wireless multimedia communications
TL;DR: It is argued that third-generation transceivers might become adaptively reconfigurable under network control in order to meet backward compatibility requirements with existing systems and to achieve best compromise among a range of conflicting system requirements, complexity and power consumption, robustness against channel errors, etc.
References
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Journal ArticleDOI
Minimum prediction residual principle applied to speech recognition
TL;DR: A computer system is described in which isolated words, spoken by a designated talker, are recognized through calculation of a minimum prediction residual through optimally registering the reference LPC onto the input autocorrelation coefficients using the dynamic programming algorithm.
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Effectiveness of linear prediction characteristics of the speech wave for automatic speaker identification and verification
TL;DR: The cepstrum was found to be the most effective, providing an identification accuracy of 70% for speech 50 msec in duration, which increased to more than 98% for a duration of 0.5 sec.
Journal ArticleDOI
Distance measures for speech processing
TL;DR: The likelihood ratio, cepstral measure, and cosh measure are easily evaluated recursively from linear prediction filter coefficients, and each has a meaningful and interrelated frequency domain interpretation.
Journal ArticleDOI
Adaptive transform coding of speech signals
R. Zelinski,P. Noll +1 more
TL;DR: The main result is that this adaptive transform coder performs better than all known nonpitch-tracking coding schemes; it extends the range of speech waveform coding to lower bit rates and closes the gap between vocoders and predictive waveform coders.