Talk:Haas effect

Haas vs. Precedence
The Haas effect states that if there are two equal sounds delayed at less that 35ms they will sound like a single sound in our brain. The Precedence Effect states that the earlier sound of the two will be the direction in which the sound will be heard from.

Danny Armstrong - Leeds


 * Does anyone have a source? -—Kvng 14:46, 10 January 2013 (UTC)

A few changes and notes
I noted the accurate remarks of "Danny Armstrong - Leeds" and modified the page somewhat in an effort to make it more accurate.

Haas (1949) published one of the earliest recognized papers dealing with sensory localization of sound(s). The term "precedence effect" has since become popularized in referring to most measurements of auditory "lead/lag" stimulus configurations and/or effects. Many, if not most, publications that deal with these phenomena refer to them as the "Haas or Precedence" effect regardless of the actual observation being described. I believe it may be better to differentiate between the various effects (which include fusion, localization dominance, and discrimination suppression) in this effort. Novatek 18:39, 7 April 2007 (UTC)


 * Localization dominance and discrimination suppression are described in Precedence effect. I've added a See also link to Binaural fusion. -—Kvng 14:45, 10 January 2013 (UTC)

Why 30–40 ms?
I wonder how they reached this particular value. By calculating the time it takes for sound to travel from one ear to the other? I get lower numbers, when I try do this calculation (assuming ear distance is appx. 12 cm.) Could anyone elaborate? JoaCHIP (talk) 23:38, 15 October 2009 (UTC)


 * The number range wasn't calculated, it was measured in tests on human subjects. The time it takes for sound to get from one ear to the next is about one millisecond, depending on the size of the head. The Haas effect has nothing to do with that. Binksternet (talk) 00:50, 16 October 2009 (UTC)

(!)
What's with the parenthetical exclamations? --Kvng (talk) 13:36, 28 June 2010 (UTC)

Precedence effect
What's the difference be tween Precedence effect and Haas effect? I thought they were one and the same. Reading the two articles does not convince me otherwise. I'd be happy to do the merge if my understanding is correct. --Kvng (talk) 13:36, 28 June 2010 (UTC)


 * The differences are subtle; they should probably be discussed together in one article where the history of experiments and effects can be compared. Dicklyon (talk) 05:20, 8 January 2013 (UTC)


 * Which title do you prefer for the final merged article? -—Kvng 14:31, 10 January 2013 (UTC)


 * The Haas Effect refers to the fact that the lagging sound may be up to 10 dB louder than the leading sound without dominating localisation, which normally only occurs under experimental circumstances but not in natural settings. The Precedence Effect is the correct term for the dominance of the first wave front in the locatedness of the auditory event. The Haas Effect is thus a special case of the Precedence Effect, which is already mentioned on the latter page. — Preceding unsigned comment added by 130.89.163.191 (talk) 14:19, 24 February 2013 (UTC)


 * This appears to argue for a Precedence effect article with a subsection describing the more specific Haas effect. -—Kvng 19:20, 24 February 2013 (UTC)


 * I would agree. Precedence effect is the more general term, and is more descriptive. Incidentally, I am now working on a WP page for Hans Wallach, who was lead author for the classic paper on the precedence effect (Wallach, Newman and Rosenzweig, American Journal of Psychology, 1949.) Brazzit (talk) 22:23, 14 May 2013 (UTC)


 * I have updated the banners to indicate the proposed direction for the merge. Title of merged article will be Precedence effect. ~KvnG 12:32, 17 May 2013 (UTC)

Franssen effect
Is the Haas effect related to the Franssen effect? Would a cross-link (see also) be appropriate? The Seventh Taylor (talk) 14:59, 18 January 2011 (UTC)


 * It is related because it has to do with peculiarities of sound localization but it is a different effect. I think a See also link is warranted and I have added it. -—Kvng 14:37, 10 January 2013 (UTC)