Patent ID: 8296131
Filing Date: 2012-10-23
Classification: G10L,H04R

Abstract:
1. A method of providing a quality measure for an output voice signal generated to reproduce an input voice signal, the method comprising: partitioning the input voice signal and the output voice signal into frames; for each frame in the input voice signal, determining frame disturbance for a plurality of frames of the input voice signal which correspond to an utterance in the input voice signal, relative to a corresponding utterance in the output voice signal; performing a dynamic time warp by (a) temporally aligning frames in corresponding utterances of the input voice signal and the output voice signal based on calculated frame disturbances, (b) determining which frame disturbances are to be used as a subset for calculating a MOS quality measure for the output voice signal; wherein determining which frame disturbances are to be used, comprises: based on the determination of which frame disturbances are to be used, calculating the MOS quality measure for the output voice signal.