The Influence of Discrete Arriving Reflections on Perceived Intelligibility and STI Measurements

Hammond R, Mapp P, Hill AJ. The Influence of Discrete Arriving Reflections on Perceived Intelligibility and STI Measurements. In: AES Convention 140. Audio Engineering Society; 2016. Paper 248. Available from: https://aes.org/publications/elibrary-page/?id=18152

@inproceedings{Hammond2016_18152,
  author = {Hammond, Ross and Mapp, Peter and Hill, Adam J.},
  title = {{The Influence of Discrete Arriving Reflections on Perceived Intelligibility and STI Measurements}},
  booktitle = {AES Convention 140},
  note = {Paper 248},
  year = {2016},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18152}
}

TY  - CPAPER
TI  - The Influence of Discrete Arriving Reflections on Perceived Intelligibility and STI Measurements
AU  - Hammond, Ross
AU  - Mapp, Peter
AU  - Hill, Adam J.
T2  - AES Convention 140
M1  - Paper 248
PY  - 2016
DA  - 2016/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18152
PB  - Audio Engineering Society
LA  - en
AB  - The most widely used objective intelligibility measurement method, the Speech Transmission Index (STI), does not completely match the highly complex auditory perception and human hearing system. Investigations were made into the impact of discrete reflections (with varying arrival times and amplitudes) on STI scores, subjective intelligibility, and the subjective annoyance factor.’ This allows the effect of comb filtering on the modulation transfer function matrix to be displayed, as well as demonstrates how the perceptual effects of a discrete delay cause subjective ‘annoyance,’ that is not necessarily mirrored by STI. This work provides evidence showing why STI should not be the sole verification method within public address and emergency announcement systems, where temporal properties also need thoughtful consideration.
ER  -