19 July 2013 Local thresholding de-noise speech signal
Author Affiliations +
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.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Haitao Luo, "Local thresholding de-noise speech signal", Proc. SPIE 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013), 88780E (19 July 2013); doi: 10.1117/12.2030633; https://doi.org/10.1117/12.2030633
PROCEEDINGS
4 PAGES


SHARE
Back to Top