TY - GEN
T1 - Separation of multiple sound sources in the same direction by instantaneous spectral estimation
AU - Ozawa, Kenji
AU - Watanabe, Kanji
AU - Sakamoto, Shuichi
N1 - Funding Information:
Work supported by JSPS KAKENHI (JP19K04408).
Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/13
Y1 - 2020/10/13
N2 - This project aims to separate sound sources in the same direction using a small array of microphones arranged on an arc. When the output pattern of instantaneous sound pressures from the array is regarded as an image, the center of the arc is a singular point because its two-dimensional frequency components are concentrated in the spatial direct current (DC) bin. Based on this property, the noise spectral DC components are estimated by solving simultaneous equations. Computer simulation experiments demonstrated that a 6-cm array achieved a clear separation of three sound sources with the signal-to-distortion ratio of about 20 dB.
AB - This project aims to separate sound sources in the same direction using a small array of microphones arranged on an arc. When the output pattern of instantaneous sound pressures from the array is regarded as an image, the center of the arc is a singular point because its two-dimensional frequency components are concentrated in the spatial direct current (DC) bin. Based on this property, the noise spectral DC components are estimated by solving simultaneous equations. Computer simulation experiments demonstrated that a 6-cm array achieved a clear separation of three sound sources with the signal-to-distortion ratio of about 20 dB.
KW - arc-shaped microphone array
KW - instantaneous spectral estimation
KW - simultaneous equations
KW - spatio-temporal sound pressure distribution image
UR - http://www.scopus.com/inward/record.url?scp=85099363440&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85099363440&partnerID=8YFLogxK
U2 - 10.1109/GCCE50665.2020.9291767
DO - 10.1109/GCCE50665.2020.9291767
M3 - Conference contribution
AN - SCOPUS:85099363440
T3 - 2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020
SP - 32
EP - 33
BT - 2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE Global Conference on Consumer Electronics, GCCE 2020
Y2 - 13 October 2020 through 16 October 2020
ER -