Abstract
The effect of filtering the time trajectories of spectral envelopes on speech intelligibility was investigated. Since LPC cepstrum forms the basis of many automatic speech recognition systems, we filtered time trajectories of LPC cepstrum of speech sounds, and the modified speech was reconstructed after the filtering. For processing, we applied low-pass, high-pass and band-pass filters. The results of the accuracy from the perceptual experiments for Japanese syllables show that speech intelligibility is not severely impaired as long as the filtered spectral components have 1) a rate of change faster than 1 Hz when high-pass filtered, 2) a rate of change slower than 24 Hz when low-pass filtered, and 3) a rate of change between 1 and 16 Hz when band-pass filtered.
| Original language | English (US) |
|---|---|
| Title of host publication | International Conference on Spoken Language Processing, ICSLP, Proceedings |
| Editors | Anon |
| Publisher | IEEE |
| Pages | 2490-2493 |
| Number of pages | 4 |
| Volume | 4 |
| State | Published - 1996 |
| Event | Proceedings of the 1996 International Conference on Spoken Language Processing, ICSLP. Part 1 (of 4) - Philadelphia, PA, USA Duration: Oct 3 1996 → Oct 6 1996 |
Other
| Other | Proceedings of the 1996 International Conference on Spoken Language Processing, ICSLP. Part 1 (of 4) |
|---|---|
| City | Philadelphia, PA, USA |
| Period | 10/3/96 → 10/6/96 |
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ASJC Scopus subject areas
- Computer Science(all)
Cite this
Intelligibility of speech with filtered time trajectories of spectral envelopes. / Arai, Takayuki; Pavel, Misha; Hermansky, Hynek; Avendano, Carlos.
International Conference on Spoken Language Processing, ICSLP, Proceedings. ed. / Anon. Vol. 4 IEEE, 1996. p. 2490-2493.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Intelligibility of speech with filtered time trajectories of spectral envelopes
AU - Arai, Takayuki
AU - Pavel, Misha
AU - Hermansky, Hynek
AU - Avendano, Carlos
PY - 1996
Y1 - 1996
N2 - The effect of filtering the time trajectories of spectral envelopes on speech intelligibility was investigated. Since LPC cepstrum forms the basis of many automatic speech recognition systems, we filtered time trajectories of LPC cepstrum of speech sounds, and the modified speech was reconstructed after the filtering. For processing, we applied low-pass, high-pass and band-pass filters. The results of the accuracy from the perceptual experiments for Japanese syllables show that speech intelligibility is not severely impaired as long as the filtered spectral components have 1) a rate of change faster than 1 Hz when high-pass filtered, 2) a rate of change slower than 24 Hz when low-pass filtered, and 3) a rate of change between 1 and 16 Hz when band-pass filtered.
AB - The effect of filtering the time trajectories of spectral envelopes on speech intelligibility was investigated. Since LPC cepstrum forms the basis of many automatic speech recognition systems, we filtered time trajectories of LPC cepstrum of speech sounds, and the modified speech was reconstructed after the filtering. For processing, we applied low-pass, high-pass and band-pass filters. The results of the accuracy from the perceptual experiments for Japanese syllables show that speech intelligibility is not severely impaired as long as the filtered spectral components have 1) a rate of change faster than 1 Hz when high-pass filtered, 2) a rate of change slower than 24 Hz when low-pass filtered, and 3) a rate of change between 1 and 16 Hz when band-pass filtered.
UR - http://www.scopus.com/inward/record.url?scp=0030369532&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030369532&partnerID=8YFLogxK
M3 - Conference contribution
VL - 4
SP - 2490
EP - 2493
BT - International Conference on Spoken Language Processing, ICSLP, Proceedings
A2 - Anon, null
PB - IEEE
ER -