Master’s Thesis
Hardware Implementation of MPEG Audio Real-Time Encoder
Joakim Enerstam
and Jan Peman
September 1998
Supervisors
Björn Wesén,
Axis Communications AB
Anders Hansson / Glenn Jennings,
Luleå University of Technology
Abstract
Audio compression is a requirement for efficient transmission and storage of high fidelity digital audio. Recently developed algorithms are able to compress audio up to 12 times, without losing any audible quality. In this thesis we look at different audio compression standards with regards to both compression rate and sound quality. The chosen algorithm, MPEG-1 Layer III, is discussed in detail concerning complexity and structure. We have also looked at different hardware technologies, especially DSP solutions, suitable for an implementation of real-time encoders. A software prototype of a real-time encoder was built, based on MPEG-1 Layer III standard. The encoder was tested and verified in a DSP simulator.
Authors:
Joakim Enerstam (d92-jem@sm.luth.se)
Jan
Peman (peman@geek.rcc.se)