Audio subband coding with improved representation of transient signal segments

Jörg Kliewer, Alfred Mertins

Research output: Contribution to journalConference articlepeer-review

14 Scopus citations

Abstract

In this paper, we present a subband audio coding scheme with an attack-sensitive framing of the input audio signal, where the frame boundaries closely match both ends of the transient. Since each transient frame is processed as a symmetrically extended finite-length signal with a support-preservative MDFT filter bank, pre-echos can be almost completely avoided. Furthermore, the bit-allocation, which is calculated on a frame-by-frame basis, can be determined more accurately, because the calculation of the masking thresholds is carried out on signal segments with almost "stationary" energy distribution.

Original languageEnglish (US)
JournalEuropean Signal Processing Conference
Volume1998-January
StatePublished - 1998
Externally publishedYes
Event9th European Signal Processing Conference, EUSIPCO 1998 - Island of Rhodes, Greece
Duration: Sep 8 1998Sep 11 1998

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering

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