Abstract
For many cases of voiced speech, linear prediction (LP) based all-pole spectral envelopes exhibit unnatural vocal tract transfer functions that underestimate the formant bandwidths. To obtain smoother contoured all-pole spectral envelopes, we employ a regularization measure which discourages nonsmooth behavior of the transfer function. In particular, we demonstrate how a simple regularization scheme can be incorporated into the LP framework without the need for iterative numerical optimization or spectral sampling. Our results indicate that regularized LP all-pole models can provide more accurate vocal tract transfer function modeling than conventional LP, particularly at the formants.
| Original language | English (US) |
|---|---|
| Title of host publication | 2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 96-98 |
| Number of pages | 3 |
| ISBN (Print) | 0780364163, 9780780364165 |
| DOIs | |
| State | Published - 2000 |
| Externally published | Yes |
| Event | IEEE Workshop on Speech Coding - Delavan, United States Duration: Sep 17 2000 → Sep 20 2000 |
Other
| Other | IEEE Workshop on Speech Coding |
|---|---|
| Country | United States |
| City | Delavan |
| Period | 9/17/00 → 9/20/00 |
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Keywords
- Bandwidth
- Cost function
- Frequency estimation
- Parameter estimation
- Power harmonic filters
- Predictive models
- Signal synthesis
- Speech coding
- Speech synthesis
- Transfer functions
ASJC Scopus subject areas
- Signal Processing
- Software
Cite this
Regularized linear prediction all-pole models. / Murthi, Manohar; Kleijn, W. B.
2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium. Institute of Electrical and Electronics Engineers Inc., 2000. p. 96-98 878410.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Regularized linear prediction all-pole models
AU - Murthi, Manohar
AU - Kleijn, W. B.
PY - 2000
Y1 - 2000
N2 - For many cases of voiced speech, linear prediction (LP) based all-pole spectral envelopes exhibit unnatural vocal tract transfer functions that underestimate the formant bandwidths. To obtain smoother contoured all-pole spectral envelopes, we employ a regularization measure which discourages nonsmooth behavior of the transfer function. In particular, we demonstrate how a simple regularization scheme can be incorporated into the LP framework without the need for iterative numerical optimization or spectral sampling. Our results indicate that regularized LP all-pole models can provide more accurate vocal tract transfer function modeling than conventional LP, particularly at the formants.
AB - For many cases of voiced speech, linear prediction (LP) based all-pole spectral envelopes exhibit unnatural vocal tract transfer functions that underestimate the formant bandwidths. To obtain smoother contoured all-pole spectral envelopes, we employ a regularization measure which discourages nonsmooth behavior of the transfer function. In particular, we demonstrate how a simple regularization scheme can be incorporated into the LP framework without the need for iterative numerical optimization or spectral sampling. Our results indicate that regularized LP all-pole models can provide more accurate vocal tract transfer function modeling than conventional LP, particularly at the formants.
KW - Bandwidth
KW - Cost function
KW - Frequency estimation
KW - Parameter estimation
KW - Power harmonic filters
KW - Predictive models
KW - Signal synthesis
KW - Speech coding
KW - Speech synthesis
KW - Transfer functions
UR - http://www.scopus.com/inward/record.url?scp=0037662531&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037662531&partnerID=8YFLogxK
U2 - 10.1109/SCFT.2000.878410
DO - 10.1109/SCFT.2000.878410
M3 - Conference contribution
SN - 0780364163
SN - 9780780364165
SP - 96
EP - 98
BT - 2000 IEEE Workshop on Speech Coding - Proceedings: Meeting the Challenges of the New Millennium
PB - Institute of Electrical and Electronics Engineers Inc.
ER -