METHOD AND SYSTEM FOR COMFORT NOISE GENERATION IN SPEECH COMMUNICATION

摘要

A method and system for providing comfort noise (150) in the non-speech periods in speech communication. The comfort noise is generated based (28) o n whether the background noise in the speech input is stationary or non- stationary. If the background noise is non-stationary, a random component is inserted (32) in the comfort noise using a dithering process. If the background noise is stationary, the dithering process is not used.