Design of Multichannel FIR Filter using Gradient Descent Optimizer for Personal Audio Systems

Kim S, Choi TS. Design of Multichannel FIR Filter using Gradient Descent Optimizer for Personal Audio Systems. In: AES Convention 148. Audio Engineering Society; 2020.pp. 10349:1-4. Available from: https://aes.org/publications/elibrary-page/?id=20766

@inproceedings{Kim2020_20766,
  author = {Kim, Seunghun and Choi, Tack-Sung},
  title = {{Design of Multichannel FIR Filter using Gradient Descent Optimizer for Personal Audio Systems}},
  booktitle = {AES Convention 148},
  pages = {10349:1-4},
  url = {https://aes.org/publications/elibrary-page/?id=20766},
  year = {2020},
  month = may,
  publisher = {Audio Engineering Society}
}

TY  - CPAPER
TI  - Design of Multichannel FIR Filter using Gradient Descent Optimizer for Personal Audio Systems
AU  - Kim, Seunghun
AU  - Choi, Tack-Sung
T2  - AES Convention 148
SP  - 1
EP  - 4
M1  - Paper 10349
PY  - 2020
DA  - 2020/05/06
UR  - https://aes.org/publications/elibrary-page/?id=20766
PB  - Audio Engineering Society
LA  - en
AB  - Personal audio systems provide an acoustically private space by increasing the acoustic isolation between the bright zone and the dark zone. Multichannel FIR ?lter is designed for the acoustic isolation by suggesting a target optimization problem and obtaining an optimum solution. As a practical attempt to implement a personal audio system, this paper proposes use of a gradient descent optimizer to computationally ?nd the optimal multichannel FIR ?lter. The gradient descent optimizer minimizes the de?ned cost function based on the gradient. The cost function described in this paper is induced from the target optimization problem of the acoustic contrast control method. Experimental results in a real environment demonstrate the effectiveness of this method as achieving more than 20 dB difference at most frequencies under 8 kHz.
ER  -