Perceptually Motivated Processing for Spatial Audio Microphone Arrays

Hawksford MJ, Reller CPA. Perceptually Motivated Processing for Spatial Audio Microphone Arrays. In: AES Convention 115. Audio Engineering Society; 2003. Paper 5933. Available from: https://aes.org/publications/elibrary-page/?id=12374

@inproceedings{Hawksford2003_12374,
  author = {Hawksford, Malcolm J. and Reller, Christoph P. A.},
  title = {{Perceptually Motivated Processing for Spatial Audio Microphone Arrays}},
  booktitle = {AES Convention 115},
  note = {Paper 5933},
  year = {2003},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12374}
}

TY  - CPAPER
TI  - Perceptually Motivated Processing for Spatial Audio Microphone Arrays
AU  - Hawksford, Malcolm J.
AU  - Reller, Christoph P. A.
T2  - AES Convention 115
M1  - Paper 5933
PY  - 2003
DA  - 2003/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12374
PB  - Audio Engineering Society
LA  - en
AB  - A preliminary study is presented that investigates processing of microphone array signals for multi-channel recording applications. Generalised, perceptually and acoustically based approaches are taken, where a spaced array of M microphones is mapped to an array of L loudspeakers. The principal objective is to establish transformation matrices that integrate both microphone and loudspeaker array geometry in order to reproduce a subjectively accurate illusion of the original soundfield. Techniques of acoustical vector synthesis and plane wave reconstruction are incorporated at low frequencies migrating to an approach based upon head-related transfer functions (HRTFs) at higher frequencies. Error surfaces based on the HRTF reconstruction error are used to assess perceptually relevant solutions. Simulation results presented in a 5-channel format are calculated for processed audio material with and without acoustical boundary reflections.
ER  -