AUDIO CODING

摘要

Encoding (2) an audio signal (A) is provided, wherein basic waveforms in the audio signal (A) are determined (200), a noise component (S) is obtained (21) from the audio signal (A) by subtracting (21) the basic waveforms from the audio signal (A), a spectrum of the noise component (S) is modeled (22) by determining auto-regressive and moving-average parameters (pi,qi), and the auto-regressive and the moving-average parameters (pi,qi) are included (23) in an encoded audio signal (A') together with waveform parameters (Ci) representing the basic waveforms.