MUSICAM
MUSICAM ( English Masking Pattern Adapted Universal Subband Integrated Coding And Multiplexing ) is a system for lossy data compression of audio signals, such as B. language or music .
To calculate the compression of the data stream, the psychoacoustic model is used , which tries to map the filtering of the tones that cannot be perceived by the ear .
MUSICAM is used in MPEG-1 Audio Layer 2 (MP2), which is used, for example, in DAB (not DAB + !), DVB or ADR . It laid the foundation for the development of MP3 .
MUSICAM was developed as part of the development of DAB by EUREKA , which was funded by the EU .
literature
- Thomas Görne: Sound engineering. Fachbuchverlag Leipzig in Carl Hanser Verlag, Munich et al. 2006, ISBN 3-446-40198-9 .
- Christfried Weck: Optimization of the channel coding with regard to the exit behavior of a digital radio broadcast system. 1996 (Dissertation, Technical University Berlin)
Web links
- Digital radio (DAB) - Musicam / MPEG Layer 2 ( Memento from May 21, 2006 in the Internet Archive )
Individual evidence
- ↑ Frank Schaetzlein: The digitization of audio signals - A brief introduction from 1996 ( Memento of the original from October 29, 2005 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. .
