Single channel speech quality assessment of harmony City base

摘要

Embodiments of speech quality evaluation techniques are generally described that generally include evaluating human speech quality of an audio frame in a single channel audio signal. The representation of the harmonic component of the frame is synthesized and used to calculate the non-harmonic component of the frame. The synthesized harmonic component representation and the non-harmonic component are then used to calculate a harmonic to non-harmonic ratio (HnHR). This HnHR indicates the quality of the user's speech and is defined as an evaluation value of the speech quality of the frame. In one embodiment, HnHR is used to set a minimum speech quality threshold. Below the minimum speech quality threshold, the user's speech quality is considered unacceptable. Feedback to the user is then provided based on whether HnHR is below the threshold.