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  4. Fast signal processor encodes 48 kHz/16-bit audio into 3-bit in real time
 
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1988
Conference Paper
Title

Fast signal processor encodes 48 kHz/16-bit audio into 3-bit in real time

Other Title
Ein schneller Signalprozessor zur Codierung von 16-bit Audiosignale in 3-bit-Signale bei 48 kHz
Abstract
A real-time implementation of a source coding method allowing bit rate reduction from 16 bits to 3 bits per sample at sampling rates up to 48 kHz is described. Using an adaptive transform coding technique optimized for low computing complexity and a system based on the AT&T DSP 32 single-chip signal processor, a very good compromise between sound quality and hardware complexity has been achieved. Distortions were audible only by trained listeners for critical pieces of music. One signal-processor module is needed for each of the two coders and decoders. Each one fits on a single-height Eurocard.
Author(s)
Brandenburg, K.
Kapust, R.
Seitzer, D.
Eberlein, E.
Gerhauser, H.
Popp, H.
Schott, H.
Mainwork
ICASSP 88, 1988 International Conference on Acoustics, Speech, and Signal Processing  
Conference
International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 1988  
Language
English
IIS-A  
Keyword(s)
  • digitale Signalverarbeitung

  • Mikroprozessor

  • Codierung

  • Verzerrung

  • Musik

  • Codierer

  • Decodierer

  • Datenkompression

  • Echtzeitbetrieb

  • real time system

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