Patent ID: 8229105
Filing Date: 2012-07-24
Classification: H04M

Abstract:
1. A method comprising: receiving, at a data-processing system situated in a telephony network, an input speech signal that is based on a speech input of a user at a telecommunications terminal, the input speech signal having a signal quality characteristic as measured at a point in the network other than at the telecommunications terminal; generating a primary sidetone signal that is based on the input speech signal; modifying the primary sidetone signal at the data-processing system, resulting in a modified sidetone signal that is based on one or more values of the signal quality characteristic; and transmitting the modified sidetone signal to the telecommunications terminal, wherein modifying the primary sidetone signal comprises adding a delayed version of the primary sidetone signal to the primary sidetone signal when signal degradation as represented by the one or more values of the signal quality characteristic exceeds a predetermined threshold, the delayed version having a predetermined amount of delay in relation to the primary sidetone signal.