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ICASSP
2011
IEEE
14 years 1 months ago
Improved estimation of the amplitude envelope of time-domain signals using true envelope cepstral smoothing
The amplitude modulations of musical instrument sounds and speech are important perceptual cues. Accurate estimation of the amplitude, or equivalently energy, envelope of a time-d...
Marcelo F. Caetano, Xavier Rodet
ICASSP
2011
IEEE
14 years 1 months ago
Investigation of acoustic units for LVCSR systems
One important issue in designing state-of-the-art LVCSR systems is the choice of acoustic units. Context dependent (CD) phones remain the dominant form of acoustic units. They can...
Xunying Liu, Mark John Francis Gales, Jim L. Hiero...
ICASSP
2011
IEEE
14 years 1 months ago
Detection of upper airway narrowing via classification of LPC coefficients: Implications for obstructive sleep apnea diagnosis
The similarities between unvoiced speech sounds and turbulent breath sounds were used to detect change in sound characteristics caused by narrowing of the upper airway (UA), simil...
Hisham Alshaer, Martha Garcia, M. Hossein Radfar, ...
ICASSP
2011
IEEE
14 years 1 months ago
Voice source features for cognitive load classification
Previous work in speech-based cognitive load classification has shown that the glottal source contains important information for cognitive load discrimination. However, the relia...
Tet Fei Yap, Julien Epps, Eliathamby Ambikairajah,...
ICASSP
2011
IEEE
14 years 1 months ago
Variational approximation of long-span language models for lvcsr
Long-span language models that capture syntax and semantics are seldom used in the first pass of large vocabulary continuous speech recognition systems due to the prohibitive sea...
Anoop Deoras, Tomas Mikolov, Stefan Kombrink, Mart...