Do we need two ears to perceive the distance of a sound source in a room?

Arnaud Bidart, Mathieu Lavandier*

*Corresponding author for this work

Research output: Contribution to journalArticle


A study was conducted to understand the sound characteristics that humans used to evaluate a source distance in a room. The evaluation was relative where the listener needed to know a priori the sound level produced by the source, or he and she only compared different distances assuming a constant source level. The direct-to-reverberant energy (D/R) ratio had been proposed as the underlying cue for this evaluation. This acoustical attribute was obtained by comparing the direct sound energy to the reverberant sound energy. It decreased systematically with source distance, following the decrease of direct sound energy and it was independent of source level. The D/R ratio was calculated from the room impulse response, but listeners were unable to have access to this room response when they listened to sounds which were not impulses.

Original languageEnglish
Pages (from-to)16-18
Number of pages3
JournalNoise and Vibration Worldwide
Issue number2
Publication statusPublished - 1 Feb 2011

Fingerprint Dive into the research topics of 'Do we need two ears to perceive the distance of a sound source in a room?'. Together they form a unique fingerprint.

  • Cite this