Introduction of spectral band replication
Yang Lu · Semiconductor Technology · 2004
The chapter a new method for the improvement of source coding systems by meansof Spectral Band Replication (SBR)is introduced. Substantial bitrate reduction is achieved whilemaintaining the same perceptual quality . This is accomplished by means of spectral bandwidthreduction at the encoder side and subsequent spectral band replication at the decoder. On the basisof this, a new method of spectral envelop adjustment is presented.