NOISE SUPPRESSION SYSTEM AND METHOD

摘要

A play-out device is provided for playing out an audio signal via a speaker to provide a sound signal, and a recording device for recording the sound signal to obtain a recorded signal comprising a recording of at least the sound signal. The play-out device is configured for generating noise suppression data comprising the audio signal, or a reference thereto, and timing information for enabling the audio signal to be correlated in time with the recorded signal. A noise suppression subsystem is provided with the recorded signal and the noise suppression data. The noise suppression subsystem comprises a timing manager for synchronizing the audio signal with the recorded signal based on the timing information, and a noise suppressor for processing the recorded signal based on said synchronized audio signal to obtain a processed signal in which the recording of the sound signal is suppressed. The noise suppression subsystem is thus enabled to perform noise suppression, even when not comprised in the play-out device but rather in another device such as the recording device.