Non-Intrusive Polar Pattern Estimation in Diffuse Noise Conditions for Time Variant Directional Binaural Hearing Aids

Ma C, Dittberner AB, de Vries R. Non-Intrusive Polar Pattern Estimation in Diffuse Noise Conditions for Time Variant Directional Binaural Hearing Aids. In: AES Convention 143. Audio Engineering Society; 2017. Paper 9833. Available from: https://aes.org/publications/elibrary-page/?id=19230

@inproceedings{Ma2017_19230,
  author = {Ma, Changxue and Dittberner, Andrew B. and de Vries, Rob},
  title = {{Non-Intrusive Polar Pattern Estimation in Diffuse Noise Conditions for Time Variant Directional Binaural Hearing Aids}},
  booktitle = {AES Convention 143},
  note = {Paper 9833},
  year = {2017},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19230}
}

TY  - CPAPER
TI  - Non-Intrusive Polar Pattern Estimation in Diffuse Noise Conditions for Time Variant Directional Binaural Hearing Aids
AU  - Ma, Changxue
AU  - Dittberner, Andrew B.
AU  - de Vries, Rob
T2  - AES Convention 143
M1  - Paper 9833
PY  - 2017
DA  - 2017/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19230
PB  - Audio Engineering Society
LA  - en
AB  - The directivity index is often used to represent the performance of beamforming algorithms on hearing aids. For binaural listening modeling, we also need to measure the directivity patterns. The common method to estimate the directivity patterns is using a single rotating sound source. With this method, it is difficult to obtain a good directivity pattern when the performance of the system dependents on the acoustic environment in an adaptive manner. The directivity pattern can be also confounded by other signal processing components. These processing include direction of arrival (DOA) based nonlinear post filtering. This paper proposes a method to extract the directivity patterns of a beamforming algorithm under diffuse noise conditions with a rotating probe signal. We are able to obtain the directivity pattern from the probe signal by spectral subtraction of diffuse noise sound field in a non-intrusive manner.
ER  -