Abstract
This paper proposes a new low-complexity 4.6-kbit/s speech-coding method. This method uses an extremely truncated impulse response (ETIR) that allows the distance between the input speech and the synthesized speech to be calculated very quickly. Also, a new method of distance measurement to search for the optimum code vector eliminates the negative effect of the extreme truncation. Our coding experiments have shown that the proposed truncation method does not cause a significant decline in speech quality even if the number of FIR filter taps is lowered to three, and that our 4.6-kbit/s coder achieves a weighted signal-to-noise ratio that is only 0.3 dB lower than when using the conventional full-tap coder with conventional distance measurement.
| Original language | English |
|---|---|
| Title of host publication | IEEE Workshop on Speech Coding for Telecommunications Proceedings |
| Editors | Anon |
| Place of Publication | Piscataway, NJ, United States |
| Publisher | IEEE |
| Pages | 63-64 |
| Number of pages | 2 |
| Publication status | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1997 IEEE Workshop on Speech Coding for Telecommunications - Pocono Manor, PA, USA Duration: 1997 Sep 7 → 1997 Sep 10 |
Other
| Other | Proceedings of the 1997 IEEE Workshop on Speech Coding for Telecommunications |
|---|---|
| City | Pocono Manor, PA, USA |
| Period | 97/9/7 → 97/9/10 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Low-complexity 4.6-kbit/s speech coder based on extremely truncated impulse response. / Ohmuro, Hitoshi; Mano, Kazunori.
IEEE Workshop on Speech Coding for Telecommunications Proceedings. ed. / Anon. Piscataway, NJ, United States : IEEE, 1997. p. 63-64.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Low-complexity 4.6-kbit/s speech coder based on extremely truncated impulse response
AU - Ohmuro, Hitoshi
AU - Mano, Kazunori
PY - 1997
Y1 - 1997
N2 - This paper proposes a new low-complexity 4.6-kbit/s speech-coding method. This method uses an extremely truncated impulse response (ETIR) that allows the distance between the input speech and the synthesized speech to be calculated very quickly. Also, a new method of distance measurement to search for the optimum code vector eliminates the negative effect of the extreme truncation. Our coding experiments have shown that the proposed truncation method does not cause a significant decline in speech quality even if the number of FIR filter taps is lowered to three, and that our 4.6-kbit/s coder achieves a weighted signal-to-noise ratio that is only 0.3 dB lower than when using the conventional full-tap coder with conventional distance measurement.
AB - This paper proposes a new low-complexity 4.6-kbit/s speech-coding method. This method uses an extremely truncated impulse response (ETIR) that allows the distance between the input speech and the synthesized speech to be calculated very quickly. Also, a new method of distance measurement to search for the optimum code vector eliminates the negative effect of the extreme truncation. Our coding experiments have shown that the proposed truncation method does not cause a significant decline in speech quality even if the number of FIR filter taps is lowered to three, and that our 4.6-kbit/s coder achieves a weighted signal-to-noise ratio that is only 0.3 dB lower than when using the conventional full-tap coder with conventional distance measurement.
UR - http://www.scopus.com/inward/record.url?scp=0031338723&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031338723&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0031338723
SP - 63
EP - 64
BT - IEEE Workshop on Speech Coding for Telecommunications Proceedings
A2 - Anon, null
PB - IEEE
CY - Piscataway, NJ, United States
ER -