Abstract
Speech is well described by a source-filter model. The source properties are critical for good quality reconstructed speech. We describe a source model which facilitates both low-rate coding and signal modification. The source signal is described by means of pitch-synchronous frame expansions, with different subsets of the coefficients corresponding to so-called voiced and unvoiced components. To obtain a perceptually plausible voiced-unvoiced decomposition even at speech on-sets, our frame functions adapt to the signal. The generation of the unvoiced component consists of the replacement of the corresponding coefficients with realizations of a random variable with similar statistics. Existing sinusoidal and waveform-interpolation excitation models form approximations to the presented procedure.
| Original language | English (US) |
|---|---|
| Title of host publication | Conference Record of the Asilomar Conference on Signals, Systems and Computers |
| Pages | 1459-1463 |
| Number of pages | 5 |
| Volume | 2 |
| State | Published - 2000 |
| Externally published | Yes |
| Event | 34th Asilomar Conference - Pacific Grove, CA, United States Duration: Oct 29 2000 → Nov 1 2000 |
Other
| Other | 34th Asilomar Conference |
|---|---|
| Country | United States |
| City | Pacific Grove, CA |
| Period | 10/29/00 → 11/1/00 |
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ASJC Scopus subject areas
- Hardware and Architecture
- Signal Processing
- Electrical and Electronic Engineering
Cite this
Identification and reconstruction of the unvoiced component in speech. / Bastiaan Kleijn, W.; Jefremov, A.; Murthi, Manohar.
Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2 2000. p. 1459-1463.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Identification and reconstruction of the unvoiced component in speech
AU - Bastiaan Kleijn, W.
AU - Jefremov, A.
AU - Murthi, Manohar
PY - 2000
Y1 - 2000
N2 - Speech is well described by a source-filter model. The source properties are critical for good quality reconstructed speech. We describe a source model which facilitates both low-rate coding and signal modification. The source signal is described by means of pitch-synchronous frame expansions, with different subsets of the coefficients corresponding to so-called voiced and unvoiced components. To obtain a perceptually plausible voiced-unvoiced decomposition even at speech on-sets, our frame functions adapt to the signal. The generation of the unvoiced component consists of the replacement of the corresponding coefficients with realizations of a random variable with similar statistics. Existing sinusoidal and waveform-interpolation excitation models form approximations to the presented procedure.
AB - Speech is well described by a source-filter model. The source properties are critical for good quality reconstructed speech. We describe a source model which facilitates both low-rate coding and signal modification. The source signal is described by means of pitch-synchronous frame expansions, with different subsets of the coefficients corresponding to so-called voiced and unvoiced components. To obtain a perceptually plausible voiced-unvoiced decomposition even at speech on-sets, our frame functions adapt to the signal. The generation of the unvoiced component consists of the replacement of the corresponding coefficients with realizations of a random variable with similar statistics. Existing sinusoidal and waveform-interpolation excitation models form approximations to the presented procedure.
UR - http://www.scopus.com/inward/record.url?scp=0034445377&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034445377&partnerID=8YFLogxK
M3 - Conference contribution
VL - 2
SP - 1459
EP - 1463
BT - Conference Record of the Asilomar Conference on Signals, Systems and Computers
ER -