A Two- or Three-Stage Bit-Rate Scalable Audio Coding System
Berhard Grill, Karlheinz Brandenburg · Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) · 1995
While there are no really scalable audio coding systems known today in ISO MPEG scalability is an important requirement to support the new functionalities of MPEG-4. Scalability, in general, allows a subset of the bitstream to be decoded into a useful signal. This paper describes a two and three stage bit rate scaleable audio codec which combines speech coding an perceptual audio coding techniques with a specially adapted psychoacoustic model.