Evaluating Solutions to Noise Reduction for Speech Using Wavelet Transformations

The article focuses on demonstrating noise reduction techniques for enhancing speech signaling using transformations in the wavelet domain. Noise determination with Percentile Filter is used to perform preprocessing for interference suppression techniques including hard-edge interference compression, soft-band interference compression, and noise correction using sensory wavelet filtering (PSWF). The simulation will show the results of the noise reduction of the three above methods in different noise environments, and will also make comparisons with the noise reduction methods in the research frequency domain The results show that the techniques in the wavelet domain for noise reduction are good, especially for color noise