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Speech enhancement using spectral substraction technique
Author(s)
Napakas, Sumathee
Rangsanseri, Yuttapong
Thitimajshima, Punya
Date Issued
December 1, 2002
Type
Conference Paper
Abstract
An enhancement of speech signal algorithm is presented for reducing the spectral effects of acoustically added noise in speech. The spectral substraction technique is used to remove noise components from noisy speech in order to improve the signal to noise ratio of the signal. Suppression stationary nose from speech by subtracting the noise spectrum is obtained from the signal measured during non-speech activity while the phase of noisy speech was kept. Performance assessment based on the time waveform and spectrogram plots, objective measures and informal subjective listening tests all indicate that our method gives consistently good results.
Citation
Proceeding of the International Conference on Telecommunications, 1, 340-343, 2002