Influence of Artificial Mouth’s Directivity in Determining Speech Transmission Index

Bilzi P, Bozzoli F, Farina A. Influence of Artificial Mouth’s Directivity in Determining Speech Transmission Index. In: AES Convention 119. Audio Engineering Society; 2005. Paper 6571. Available from: https://aes.org/publications/elibrary-page/?id=13345

@inproceedings{Bilzi2005_13345,
  author = {Bilzi, Paolo and Bozzoli, Fabio and Farina, Angelo},
  title = {{Influence of Artificial Mouth’s Directivity in Determining Speech Transmission Index}},
  booktitle = {AES Convention 119},
  note = {Paper 6571},
  year = {2005},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13345}
}

TY  - CPAPER
TI  - Influence of Artificial Mouth’s Directivity in Determining Speech Transmission Index
AU  - Bilzi, Paolo
AU  - Bozzoli, Fabio
AU  - Farina, Angelo
T2  - AES Convention 119
M1  - Paper 6571
PY  - 2005
DA  - 2005/10/06
UR  - https://aes.org/publications/elibrary-page/?id=13345
PB  - Audio Engineering Society
LA  - en
AB  - In room acoustics, one of the most used parameters for evaluating the speech intelligibility is the Speech Transmission Index (STI). The experimental evaluation of this STI generally employ an artificial speaker (artificial mouth) and listener (binaural head). In this study, the influence on the measurements of the emission directivity of the artificial mouth was investigated for different acoustic environments and we have found that, in many cases ( i.e. big rooms or systems of telecommunications ) the results is not sensitive to modifications of the directivity; on the contrary, inside cars, the shape of the whole balloon of directivity is important for determining correct and comparable values and the different mouth studied gives really different results in the same situation.
ER  -