Direct processing of mpeg audio using companding and BFP techniques

We present techniques for processing MPEG-audio encoded signals during the decoding process, using efficient fixed-point arithmetic operations. A large signal-to-quantization-noise-ratio is achieved over a large range of input levels. By taking advantage of MPEGaudio built-in properties, quantization distortion at the outputs of our systems is kept largely inaudible, even though only low-resolution fixed-point operations are used in the processing.

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: Christos Vezyrtzis, Aaron E. Klein, Dan Ellis, Yannis P. Tsividis
• Keywords: ICASSP 2011, Low-resolution fixed-point Operations, MPEGaudio Built-in Properties, Signal Processing, fixed-point Arithmetic Operations