"Haas effect" redirects here. Not to be confused with de Haas–van Alphen effect, Einstein–de Haas effect, or Shubnikov–de Haas effect.
The precedence effect or law of the first wavefront is a binaural psychoacoustical effect concerning sound reflection and the perception of echoes. When two versions of the same sound presented are separated by a sufficiently short time delay (below the listener's echo threshold), listeners perceive a single auditory event; its perceived spatial location is dominated by the location of the first-arriving sound (the first wave front). The lagging sound does also affect the perceived location; however, its effect is mostly suppressed by the first-arriving sound.
The Haas effect was described in 1949 by Helmut Haas in his Ph.D. thesis.[1] The term "Haas effect" is often loosely taken to include the precedence effect which underlies it.
^"Pro Audio Reference". Retrieved 2020-04-18. After Helmut Haas's doctorate dissertation presented to the University of Gottingen, Gottingen, Germany as "Über den Einfluss eines Einfachechos auf die Hörsamkeit von Sprache;" translated into English by Dr. Ing. K.P.R. Ehrenberg, Building Research Station, Watford, Herts., England Library Communication no. 363, December, 1949; reproduced in the United States as "The Influence of a Single Echo on the Audibility of Speech," J. Audio Eng. Soc., Vol. 20 (Mar. 1972), pp. 145-159.
The precedenceeffect or law of the first wavefront is a binaural psychoacoustical effect concerning sound reflection and the perception of echoes. When...
of proximal and similar objects. Within global precedence, there is also the global interference effect, which occurs when an individual is directed to...
Stecker, G. Christopher; Tollin, Daniel J. (December 6, 2014). "The PrecedenceEffect in Sound Localization". Journal of the Association for Research in...
wave front. This principle is known as the Haas effect, a specific version of the precedenceeffect. Haas measured down to even a 1 millisecond difference...
one ear before the other (no later than approximately 30 ms, see Precedenceeffect), it will appear to originate from that side. The ear–brain system...
(compressed) audio streams travel to and from each musician. Although the precedenceeffect means that small delays (up to around 40 ms) can be perceived as synchronous...
congruency effect (indicating the failure to suppress task-irrelevant information) was unaffected by the binaural beats, the global-precedenceeffect (reflecting...
from which a sound source originated. This is known as the Haas or Precedenceeffect and is possible due to the nature of having two ears, or auditory...
processes in the precedenceeffect. The Journal of the Acoustical Society of America, 90, 874. Zurek, P. M. (1987). The precedenceeffect. In Yost, W.A....
equalization, mid-side processing, and the use of delay to exploit the precedenceeffect). The end product using this process often bears little or no resemblance...
objects, due to an echo suppression phenomenon brought on by the precedenceeffect. However, with training, sighted individuals with normal hearing can...
always heard first from the intended speaker. This exploits the "Precedenceeffect" to localize the sound to the intended direction. Dolby Surround is...
research on psychoacoustics focused on the auditory precedenceeffect. The auditory precedenceeffect refers to the judgment of a direction of a sound source...
always heard first from the intended speaker. This exploits the "Precedenceeffect" to localize the sound to the intended direction. j = + 90 ∘ {\displaystyle...
phantom source. Summing localization is the basis of stereophony. Precedenceeffect Jens Blauert "Spatial Hearing", The MIT Press; Rev Sub edition (October...
control, balance, soft clip and channel delay Haas Stereo Enhancer: Precedenceeffect Multi Spread: distributes the frequency response of a mono signal...
('Round About Midnight, CL 949 mono, reissued in stereo as PC 8649). Precedenceeffect Brennan, Joseph. "The Usenet Guide to Beatles Recording Variations"...
The Warrant of Precedence for Pakistan is a protocol list at which government of Pakistan functions and officials are seated according to their rank and...
of direct sound and early reflections, which is referred to as the precedenceeffect. While the late reverberation contributes to the perception of listener...
grandson could not take precedence over a son or daughter, and it was not even clear whether the ruler's grandson could claim precedence over the ruler's brother...
S2CID 4024835. Litovsky, R.; Colburn, H.; Yost, W. (1999). "The PrecedenceEffect". Journal of the Acoustical Society of America. 106 (4 Pt 1): 1633–1654...
is often used for importance or precedence ('primary consideration') and sequence of dependence ('secondary effect', 'secondary boycott', 'secondary...
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