Dual-Microphone Speech Enhancement System Attenuating both Coherent and Diffuse Background Noise

Stolbov, Mikhail

doi:10.1007/978-3-030-26061-3_48

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…In recently years, microphone arrays [1] concerned, cause it uses spatial information of geometry microphone array, coherence of condition noise field, coherence of captured noisy signal to remove background noise, and sound interference. The minimum variance distortionless response (MVDR) [2][3][4][5][6] beamforming algorithm is now often popular used in microphone array system. MVDR, which based on a constraint condition of minimization of total power output noise and ensures undistorted target speaker, provides a optimal solution in speech application: speech recognition, speech enhancement, surveillance.…”

Section: Introductionmentioning

confidence: 99%

Differences Amplitude Based Improvement of Minimum Variance Distortionless Response Filter

The*

2020

IJRTE

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In this work, the author introduces a new technique for improving the performance of minimum variance distortionless response filter in condition of coherent noise. The proposal algorithm exploits a priori information of differences amplitude to balance power spectral densities of observed noisy signals. The output signal of MVDR filter is then processed by an additional post-filtering, which based speech presence probability to suppress more noise interference and increase quality speech. In experiments using two noisy signal recordings in anechoeic room, the modified MVDR-filter results provides that the suggested algorithm increases speech quality compared to the conventional MVDR filter.

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Section: Introductionmentioning

confidence: 99%

Differences Amplitude Based Improvement of Minimum Variance Distortionless Response Filter

The*

2020

IJRTE

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New two-microphone simplified sub-band forward algorithm based on separated variable step-sizes for acoustic noise reduction

Bendoumia

2024

Applied Acoustics

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Dual-microphone active noise cancellation paved with Doppler assimilation for TADS

Liu

Zhao

Zhu

et al. 2023

Mechanical Systems and Signal Processing

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Dual-Microphone Speech Enhancement System Attenuating both Coherent and Diffuse Background Noise

Cited by 3 publications

References 9 publications

Differences Amplitude Based Improvement of Minimum Variance Distortionless Response Filter

Differences Amplitude Based Improvement of Minimum Variance Distortionless Response Filter

New two-microphone simplified sub-band forward algorithm based on separated variable step-sizes for acoustic noise reduction

Dual-microphone active noise cancellation paved with Doppler assimilation for TADS

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