Local thresholding de-noise speech signal

Haitao Luo

doi:10.1117/12.2030633

19 July 2013 Local thresholding de-noise speech signal

Haitao Luo

Proceedings Volume 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013); 88780E (2013) https://doi.org/10.1117/12.2030633
Event: Fifth International Conference on Digital Image Processing, 2013, Beijing, China

Abstract

De-noise speech signal if it is noisy. Construct a wavelet according to Daubechies’ method, and derive a wavelet packet from the constructed scaling and wavelet functions. Decompose the noisy speech signal by wavelet packet. Develop algorithms to detect beginning and ending point of speech. Construct polynomial function for local thresholding. Apply different strategies to de-noise and compress the decomposed terminal nodes coefficients. Reconstruct the wavelet packet tree. Re-build audio file using reconstructed data and compare the effectiveness of different strategies.

Citation Download Citation

Haitao Luo "Local thresholding de-noise speech signal", Proc. SPIE 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013), 88780E (19 July 2013); https://doi.org/10.1117/12.2030633

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