IEICE TRANSACTIONS on Fundamentals
Separation of Sound Sources Propagated in the Same Direction
Summary :
This paper describes a method for separating a target sound from other noise arriving in a single direction when the target cannot, therefore, be separated by directivity control. Microphones are arranged in a line toward the sources to form null sensitivity points at given distances from the microphones. The null points exclude non-target sound sources on the basis of weighting coefficients for microphone outputs determined by blind source separation. The separation problem is thereby simplified to instantaneous separation by adjustment of the time-delays for microphone outputs. The system uses a direct (i.e. non-iterative) algorithm for blind separation based on second-order statistics, assuming that all sources are non-stationary signals. Simulations show that the 2-microphone system can separate a target sound with separability of more than 40 dB for the 2-source problem, and 25 dB for the 3-source problem when the other sources are adjacent.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E88-A No.7 pp.1665-1672
- Publication Date
- 2005/07/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietfec/e88-a.7.1665
- Type of Manuscript
- Special Section PAPER (Special Section on Multi-channel Acoustic Signal Processing)
- Category
- Blind Source Separation
Authors
Keyword
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Akio ANDO, Masakazu IWAKI, Kazuho ONO, Koichi KUROZUMI, "Separation of Sound Sources Propagated in the Same Direction" in IEICE TRANSACTIONS on Fundamentals,
vol. E88-A, no. 7, pp. 1665-1672, July 2005, doi: 10.1093/ietfec/e88-a.7.1665.
Abstract: This paper describes a method for separating a target sound from other noise arriving in a single direction when the target cannot, therefore, be separated by directivity control. Microphones are arranged in a line toward the sources to form null sensitivity points at given distances from the microphones. The null points exclude non-target sound sources on the basis of weighting coefficients for microphone outputs determined by blind source separation. The separation problem is thereby simplified to instantaneous separation by adjustment of the time-delays for microphone outputs. The system uses a direct (i.e. non-iterative) algorithm for blind separation based on second-order statistics, assuming that all sources are non-stationary signals. Simulations show that the 2-microphone system can separate a target sound with separability of more than 40 dB for the 2-source problem, and 25 dB for the 3-source problem when the other sources are adjacent.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e88-a.7.1665/_p
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@ARTICLE{e88-a_7_1665,
author={Akio ANDO, Masakazu IWAKI, Kazuho ONO, Koichi KUROZUMI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Separation of Sound Sources Propagated in the Same Direction},
year={2005},
volume={E88-A},
number={7},
pages={1665-1672},
abstract={This paper describes a method for separating a target sound from other noise arriving in a single direction when the target cannot, therefore, be separated by directivity control. Microphones are arranged in a line toward the sources to form null sensitivity points at given distances from the microphones. The null points exclude non-target sound sources on the basis of weighting coefficients for microphone outputs determined by blind source separation. The separation problem is thereby simplified to instantaneous separation by adjustment of the time-delays for microphone outputs. The system uses a direct (i.e. non-iterative) algorithm for blind separation based on second-order statistics, assuming that all sources are non-stationary signals. Simulations show that the 2-microphone system can separate a target sound with separability of more than 40 dB for the 2-source problem, and 25 dB for the 3-source problem when the other sources are adjacent.},
keywords={},
doi={10.1093/ietfec/e88-a.7.1665},
ISSN={},
month={July},}
Copy
TY - JOUR
TI - Separation of Sound Sources Propagated in the Same Direction
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1665
EP - 1672
AU - Akio ANDO
AU - Masakazu IWAKI
AU - Kazuho ONO
AU - Koichi KUROZUMI
PY - 2005
DO - 10.1093/ietfec/e88-a.7.1665
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E88-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2005
AB - This paper describes a method for separating a target sound from other noise arriving in a single direction when the target cannot, therefore, be separated by directivity control. Microphones are arranged in a line toward the sources to form null sensitivity points at given distances from the microphones. The null points exclude non-target sound sources on the basis of weighting coefficients for microphone outputs determined by blind source separation. The separation problem is thereby simplified to instantaneous separation by adjustment of the time-delays for microphone outputs. The system uses a direct (i.e. non-iterative) algorithm for blind separation based on second-order statistics, assuming that all sources are non-stationary signals. Simulations show that the 2-microphone system can separate a target sound with separability of more than 40 dB for the 2-source problem, and 25 dB for the 3-source problem when the other sources are adjacent.
ER -
English
