Multiple length adaptive windowing of audio signals
Alessandro Vanelli‐Coralli, Giovanni Emanuele Corazza, A. Orsini · Electronics Letters · 1999
Audio coders generally operate on a per-frame basis to tackle signal non-stationarity. The choice of frame length is crucial to system performance since it trades off coding efficiency and pre-echo avoidance. A new algorithm based on multiple length adaptive windowing is proposed as an enhanced front-end for audio coders. Overhead reductions in excess of 40% are reported.