Abstract
We investigated a new communication-aid system focused on bone-conduction through a tooth, for listening to and recording voices. In this paper, we developed a tooth-conduction microphone (TCM) and evaluate the articulation of tooth-conducted voice (TCV). Because the TCM has the shape of one's dental mold, it is wearable like a mouthpiece. Moreover, it can extract tooth vibration during phonation as TCV. To evaluate articulation of TCV, we adopted monosyllable articulation for subjective assessment and linear predictive coding cepstral distance for objective assessment. The results of articulation show that TCV is not sufficiently clear compared to airconducted. However, it is confirmed that TCV is robust to environmental noise because the accuracy rate is not decreased when the TCV is recorded under high ambient noise.
| Original language | English |
|---|---|
| Pages (from-to) | 500-506 |
| Number of pages | 7 |
| Journal | Acoustical Science and Technology |
| Volume | 36 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2015 |
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Keywords
- Bone-conducted voice
- Communication-aid
- Piezoelectric device
- Tooth-conducted voice
- Voice acquisition
ASJC Scopus subject areas
- Acoustics and Ultrasonics
Cite this
Evaluation of tooth-conduction microphone for communication under noisy environment. / Torikai, Yusuke; Kuze, Dai; Kurosawa, Junko; Oikawa, Yasuhiro; Yamasaki, Yoshio.
In: Acoustical Science and Technology, Vol. 36, No. 6, 2015, p. 500-506.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evaluation of tooth-conduction microphone for communication under noisy environment
AU - Torikai, Yusuke
AU - Kuze, Dai
AU - Kurosawa, Junko
AU - Oikawa, Yasuhiro
AU - Yamasaki, Yoshio
PY - 2015
Y1 - 2015
N2 - We investigated a new communication-aid system focused on bone-conduction through a tooth, for listening to and recording voices. In this paper, we developed a tooth-conduction microphone (TCM) and evaluate the articulation of tooth-conducted voice (TCV). Because the TCM has the shape of one's dental mold, it is wearable like a mouthpiece. Moreover, it can extract tooth vibration during phonation as TCV. To evaluate articulation of TCV, we adopted monosyllable articulation for subjective assessment and linear predictive coding cepstral distance for objective assessment. The results of articulation show that TCV is not sufficiently clear compared to airconducted. However, it is confirmed that TCV is robust to environmental noise because the accuracy rate is not decreased when the TCV is recorded under high ambient noise.
AB - We investigated a new communication-aid system focused on bone-conduction through a tooth, for listening to and recording voices. In this paper, we developed a tooth-conduction microphone (TCM) and evaluate the articulation of tooth-conducted voice (TCV). Because the TCM has the shape of one's dental mold, it is wearable like a mouthpiece. Moreover, it can extract tooth vibration during phonation as TCV. To evaluate articulation of TCV, we adopted monosyllable articulation for subjective assessment and linear predictive coding cepstral distance for objective assessment. The results of articulation show that TCV is not sufficiently clear compared to airconducted. However, it is confirmed that TCV is robust to environmental noise because the accuracy rate is not decreased when the TCV is recorded under high ambient noise.
KW - Bone-conducted voice
KW - Communication-aid
KW - Piezoelectric device
KW - Tooth-conducted voice
KW - Voice acquisition
UR - http://www.scopus.com/inward/record.url?scp=84947794062&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947794062&partnerID=8YFLogxK
U2 - 10.1250/ast.36.500
DO - 10.1250/ast.36.500
M3 - Article
AN - SCOPUS:84947794062
VL - 36
SP - 500
EP - 506
JO - Acoustical Science and Technology
JF - Acoustical Science and Technology
SN - 1346-3969
IS - 6
ER -