Study of Doubletalk Detection Performance in the Presence of Acoustic Echo Path Changes

Research output: Contribution to journalArticle

Abstract

An efficient and well-performing double-talk detection (DTD) algorithm is a vital part of a practically working acoustic echo canceller. However, recent algorithms are typically evaluated using a static time-invariant room acoustic impulse response, omitting a proper treatment of the case when the acoustic path is changing. In this work, we introduce a common framework to objectively evaluate how path changes affect the DTD performance. Via extensive numerical simulations, we conclude that the main factor in acoustic path changes affecting the DTD performance for some of the more common DTD algorithms is variations in the damping of the acoustic path.

Details

Authors
External organisations
  • External Organization - Unknown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Probability Theory and Statistics

Keywords

  • CANCELLATION, DOUBLE-TALK DETECTION, adaptive filtering, acoustic echo cancellation, doubletalk detection
Original languageEnglish
Pages (from-to)515-522
JournalIEEE Transactions on Consumer Electronics
Volume52
Issue number2
Publication statusPublished - 2006
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes