Patent ID: 8682268
Filing Date: 2014-03-25
Classification: G10L

Abstract:
1. A method of noise suppression for a noise suppression module in a communication device, the module being coupled to a radio transmitter, the method comprising: the module receiving information regarding at least one of the following: radio transmission activity and radio transmission power; the module suppressing, based on the received information, audio path noise; and decomposing, before changing the radio transmission activity or the radio transmission power, the noise into general audio noise and burst noise, wherein the decomposition comprises considering a frequency bin where burst noise is present and taking two adjacent frequency bins which are free from burst noise and determining the level of general audio noise in these two bins, then applying linear regression, interpolation or averaging to the general audio noise values of these two bins to estimate general audio noise in the frequency bin where burst noise is present, then taking a previous measurement result of the total noise for a bin where burst noise is present and obtaining the burst noise before the change of the radio transmission activity or radio transmission power by subtracting the general audio noise from the total noise.