Improvement of DUET for Blind Source Separation in Closely Spaced Stereo Microphone Recording

Chun CJ, Kim HK. Improvement of DUET for Blind Source Separation in Closely Spaced Stereo Microphone Recording. In: AES Convention 140. Audio Engineering Society; 2016. Paper 9543. Available from: https://aes.org/publications/elibrary-page/?id=18241

@inproceedings{Chun2016_18241,
  author = {Chun, Chan Jun and Kim, Hong Kook},
  title = {{Improvement of DUET for Blind Source Separation in Closely Spaced Stereo Microphone Recording}},
  booktitle = {AES Convention 140},
  note = {Paper 9543},
  year = {2016},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18241}
}

TY  - CPAPER
TI  - Improvement of DUET for Blind Source Separation in Closely Spaced Stereo Microphone Recording
AU  - Chun, Chan Jun
AU  - Kim, Hong Kook
T2  - AES Convention 140
M1  - Paper 9543
PY  - 2016
DA  - 2016/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18241
PB  - Audio Engineering Society
LA  - en
AB  - This paper proposes a blind source separation (BSS) method to improve the performance of the degenerate unmixing estimation technique (DUET) when sound sources are recorded using closely spaced stereo microphones. In particular, the attenuation-delay-based discrimination analysis employed in DUET is replaced with a microphone spacing- and source direction-based discrimination analysis in order to remedy the problem of DUET when the attenuation factors between recorded stereo audio signals are not distinguishable. In other words, the proposed BSS method generates a histogram as a function of the microphone spacing and the directional difference between stereo signals. Next, the generated histogram is used to partition the time-frequency representations of the mixtures into that of each sound source. The performance of the proposed method is evaluated by means of both objective and subjective measures. Consequently, it is shown from the evaluation that the proposed BSS method outperforms the conventional DUET in a closely spaced stereo microphone recording environment.
ER  -