Generalized amplitude interpolation by β-divergence for virtual microphone array

Hiroki Katahira; Nobutaka Ono; Shigeki Miyabe; Takeshi Yamada; Shoji Makino

doi:10.1109/IWAENC.2014.6953356

Generalized amplitude interpolation by β-divergence for virtual microphone array

Hiroki Katahira, Nobutaka Ono, Shigeki Miyabe, Takeshi Yamada, Shoji Makino

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

In this paper, we present a generalization of the virtual microphone array we previously proposed to increase the microphone elements by nonlinear interpolation. In the previous work, we generated a virtual observation from two actual microphones by an interpolation in the logarithmic domain. This corresponds to a linear interpolation of the phase and the geometric mean of the amplitude. In this paper, we generalize this interpolation using a linear interpolation of the phase and a nonlinear interpolation of the amplitude with adjustable nonlinearity based on β-divergence. Improvement of the array signal processing performance is obtained by appropriate tuning of the parameter β We evaluate the improvement in speech enhancement using a maximum SNR beamformer.

Original language	English
Title of host publication	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	149-153
Number of pages	5
ISBN (Electronic)	9781479968084
DOIs	https://doi.org/10.1109/IWAENC.2014.6953356
Publication status	Published - 2014 Nov 11
Externally published	Yes
Event	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014 - Juan-les-Pins, France Duration: 2014 Sept 8 → 2014 Sept 11

Publication series

Name	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014

Conference

Conference	2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014
Country/Territory	France
City	Juan-les-Pins
Period	14/9/8 → 14/9/11

Keywords

array signal processing
maximum SNR beamformer
speech enhancement
virtual microphone

ASJC Scopus subject areas

Signal Processing
Software
Acoustics and Ultrasonics
Computer Networks and Communications

Access to Document

10.1109/IWAENC.2014.6953356

Cite this

Katahira, H., Ono, N., Miyabe, S., Yamada, T., & Makino, S. (2014). Generalized amplitude interpolation by β-divergence for virtual microphone array. In 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014 (pp. 149-153). Article 6953356 (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWAENC.2014.6953356

Generalized amplitude interpolation by β-divergence for virtual microphone array. / Katahira, Hiroki; Ono, Nobutaka; Miyabe, Shigeki et al.
2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 149-153 6953356 (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Katahira, H, Ono, N, Miyabe, S, Yamada, T & Makino, S 2014, Generalized amplitude interpolation by β-divergence for virtual microphone array. in 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014., 6953356, 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014, Institute of Electrical and Electronics Engineers Inc., pp. 149-153, 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014, Juan-les-Pins, France, 14/9/8. https://doi.org/10.1109/IWAENC.2014.6953356

Katahira H, Ono N, Miyabe S, Yamada T, Makino S. Generalized amplitude interpolation by β-divergence for virtual microphone array. In 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 149-153. 6953356. (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014). doi: 10.1109/IWAENC.2014.6953356

Katahira, Hiroki ; Ono, Nobutaka ; Miyabe, Shigeki et al. / Generalized amplitude interpolation by β-divergence for virtual microphone array. 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 149-153 (2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014).

@inproceedings{dea7d5a8928b450b9f3481998944c934,

title = "Generalized amplitude interpolation by β-divergence for virtual microphone array",

abstract = "In this paper, we present a generalization of the virtual microphone array we previously proposed to increase the microphone elements by nonlinear interpolation. In the previous work, we generated a virtual observation from two actual microphones by an interpolation in the logarithmic domain. This corresponds to a linear interpolation of the phase and the geometric mean of the amplitude. In this paper, we generalize this interpolation using a linear interpolation of the phase and a nonlinear interpolation of the amplitude with adjustable nonlinearity based on β-divergence. Improvement of the array signal processing performance is obtained by appropriate tuning of the parameter β We evaluate the improvement in speech enhancement using a maximum SNR beamformer.",

keywords = "array signal processing, maximum SNR beamformer, speech enhancement, virtual microphone",

author = "Hiroki Katahira and Nobutaka Ono and Shigeki Miyabe and Takeshi Yamada and Shoji Makino",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014 ; Conference date: 08-09-2014 Through 11-09-2014",

year = "2014",

month = nov,

day = "11",

doi = "10.1109/IWAENC.2014.6953356",

language = "English",

series = "2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "149--153",

booktitle = "2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014",

}

TY - GEN

T1 - Generalized amplitude interpolation by β-divergence for virtual microphone array

AU - Katahira, Hiroki

AU - Ono, Nobutaka

AU - Miyabe, Shigeki

AU - Yamada, Takeshi

AU - Makino, Shoji

PY - 2014/11/11

Y1 - 2014/11/11

N2 - In this paper, we present a generalization of the virtual microphone array we previously proposed to increase the microphone elements by nonlinear interpolation. In the previous work, we generated a virtual observation from two actual microphones by an interpolation in the logarithmic domain. This corresponds to a linear interpolation of the phase and the geometric mean of the amplitude. In this paper, we generalize this interpolation using a linear interpolation of the phase and a nonlinear interpolation of the amplitude with adjustable nonlinearity based on β-divergence. Improvement of the array signal processing performance is obtained by appropriate tuning of the parameter β We evaluate the improvement in speech enhancement using a maximum SNR beamformer.

AB - In this paper, we present a generalization of the virtual microphone array we previously proposed to increase the microphone elements by nonlinear interpolation. In the previous work, we generated a virtual observation from two actual microphones by an interpolation in the logarithmic domain. This corresponds to a linear interpolation of the phase and the geometric mean of the amplitude. In this paper, we generalize this interpolation using a linear interpolation of the phase and a nonlinear interpolation of the amplitude with adjustable nonlinearity based on β-divergence. Improvement of the array signal processing performance is obtained by appropriate tuning of the parameter β We evaluate the improvement in speech enhancement using a maximum SNR beamformer.

KW - array signal processing

KW - maximum SNR beamformer

KW - speech enhancement

KW - virtual microphone

UR - http://www.scopus.com/inward/record.url?scp=84957637082&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84957637082&partnerID=8YFLogxK

U2 - 10.1109/IWAENC.2014.6953356

DO - 10.1109/IWAENC.2014.6953356

M3 - Conference contribution

AN - SCOPUS:84957637082

T3 - 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014

SP - 149

EP - 153

BT - 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014

Y2 - 8 September 2014 through 11 September 2014

ER -

Generalized amplitude interpolation by β-divergence for virtual microphone array

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this