Examining Influence of Distance to Microphone on Accuracy of Speech Recognition

Bratoszewski P, Szykulski M, Czyzewski A. Examining Influence of Distance to Microphone on Accuracy of Speech Recognition. In: AES Convention 138. Audio Engineering Society; 2015. Paper 194. Available from: https://aes.org/publications/elibrary-page/?id=17629

@inproceedings{Bratoszewski2015_17629,
  author = {Bratoszewski, Piotr and Szykulski, Marcin and Czyzewski, Andrzej},
  title = {{Examining Influence of Distance to Microphone on Accuracy of Speech Recognition}},
  booktitle = {AES Convention 138},
  note = {Paper 194},
  year = {2015},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17629}
}

TY  - CPAPER
TI  - Examining Influence of Distance to Microphone on Accuracy of Speech Recognition
AU  - Bratoszewski, Piotr
AU  - Szykulski, Marcin
AU  - Czyzewski, Andrzej
T2  - AES Convention 138
M1  - Paper 194
PY  - 2015
DA  - 2015/05/06
UR  - https://aes.org/publications/elibrary-page/?id=17629
PB  - Audio Engineering Society
LA  - en
AB  - The problem of controlling a machine by the distant-talking speaker without a necessity of handheld or body-worn equipment usage is considered. A laboratory setup is introduced for examination of performance of the developed automatic speech recognition system fed by direct and by distant speech acquired by microphones placed at three different distances from the speaker (0.5 m to 1.5 m). For feature extraction from the voice signal the Mel- Frequency Cepstral Coefficients (MFCC) are used. The experiments are conducted employing the HTK engine (Hidden Markov Toolkit) for the Automatic Speech Recognition (ASR) task. The dictionary of 184 words was employed and WER (Word Error Rate), correctness and accuracy measures were calculated in order to verify and to compare obtained results of speech recognition.
ER  -