# Haas effect

> English word · Noun

## Definitions
1. The phenomenon whereby humans localize sound sources in the direction of the first arriving sound, even in the presence of a single reflection from a different direction.

## Etymology
Derived from a 1951 paper by Helmut Haas.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/haas-effect