In this study we investigate whether speakers, in line with the predictions of the Hyperand Hypospeech theory, speed up most during the least informative parts and less during the more informative parts, when they are asked to speak faster. We expected listeners to benefit from these changes in timing, and our main goal was to find out whether making the temporal organisation of artificially ti...

Automatic recognition of compressed speech in such applications as voice mail or call centers has significantly degraded performance compared to non-compressed data when background noise is present. Recognition of transmitted speech, such as in cellular, voice over IP, or networked PDA input, may also face the problem of frame erasures. There have been various attempts to compensate for these t...

Increasing the usability of menus on small electronic devices is essential due to their increasing proliferation and decreasing physical sizes in the marketplace. Auditory menus are being studied as an enhancement to the menus on these devices. This study compared the learning rates for earcons (hierarchical representations of menu locations using musical tones) and spearcons (compressed speech...

PURPOSE A new literature has suggested that speech rate can influence the parsing of words quite strongly in speech. The purpose of this study was to investigate differences between younger adults and older adults in the use of context speech rate in word segmentation, given that older adults perceive timing information differently from younger ones. METHOD Younger (18-25 years) and older (55...

PURPOSE The current study aimed to evaluate hearing-related changes in terms of speech-in-noise processing, fast-rate speech processing, and working memory; and to identify which of these three factors is significantly affected by age-related hearing loss. METHODS One hundred subjects aged 65-84 years participated in the study. They were classified into four groups ranging from normal hearing...

The premise of this study is that current models of speech perception, which are driven by acoustic features alone, are incomplete, and that the role of decoding time during memory access must be incorporated to account for the patterns of observed recognition phenomena. It is postulated that decoding time is governed by a cascade of neuronal oscillators, which guide template-matching operation...

An efficient LSP parameters quantization scheme is proposed using the compressed sensing (CS). The LSP parameters extracted from consecutive speech frames are compressed by CS on the approximate KLT domain to produce a measurement vector, which is quantized using the split vector quantizer. Then, from the quantized measurements, the original LSP parameters are reconstructed by the orthogonal ma...

In this paper we consider the problem of packet loss concealment for Voice over IP (VoIP). The speech signal is compressed at the transmitter using a sinusoidal coding scheme working at 8 kbit/s. At the receiver, packet loss concealment is carried out working directly on the quantized sinusoidal parameters, based on time-scaling of the packets surrounding the missing ones. Subjective listening ...