Patent ID: 8200481
Filing Date: 2012-06-12
Classification: G10L

Abstract:
1. A method for performing a frame erasure concealment to a higher-band signal, comprising: calculating, by a device for performing a frame erasure concealment to a higher-band signal, a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; judging, by the device for performing the frame erasure concealment to the higher-band signal whether the periodic intensity is higher than or equal to a preconfigured threshold, if the periodic intensity is higher than or equal to the preconfigured threshold, performing the frame erasure concealment to the higher-band signal of a current lost frame with a pitch period repetition based method, and if the periodic intensity is lower than the preconfigured threshold, performing the frame erasure concealment to the higher-band signal of the current lost frame with a previous frame data repetition based method; wherein the higher-band signal is a voice signal.