UTILIZING LEVEL DIFFERENCES FOR SPEECH ENHANCEMENT

摘要

Systems and methods for utilizing level differences to attenuate noise and enhance speech are provided. In exemplary embodiments, energy estimates of acoustic signals, representing captured sound, are determined in order to determine a level difference. This level difference in combination with a noise estimate, based only on a primary acoustic signal, allow a filter estimate to be derived. In some embodiments, the derived filter estimate may be smoothed. The filter estimate is then applied to the acoustic signal from the primary acoustic signal to generate a speech estimate.

主权项

1. A method for enhancing speech, comprising:
determining a filter estimate, using at least one hardware processor, during a frame, the filter estimate based on a noise estimate of a primary acoustic signal, an energy estimate of the primary acoustic signal, and a level difference based on the primary acoustic signal and a secondary acoustic signal, the primary acoustic signal and the secondary acoustic signal each representing at least one captured sound; and applying the filter estimate to the primary acoustic signal to produce a speech estimate.