Re: How to create apparent continuity of a tone without increasing the loudness of the white noise about 20 times as that of the tone?

[Wolfgang Dreier <wolfgang.dreier@xxxxxx>]

> Hello Annekathrin,
>
> there exist several definitions of the auditory continuity illusion, which
> of course differ from each other (Bregman 1990, Reuter 1996/98, Warren
1999,
> etc.) - nevertheless, they all stress the point that the masker's
intensity
> should be sufficient to produce illusory continuity ("sufficiency of
> evidence rule", Bregman 2001: 352ff; 663). Terhardt (1998: 412) defines
the
> widest possible gap as 150ms (maybe 'cause of the average post-masking
> period - Zwicker/Fastl:Psychoacoustics 1999: 77f. - but I don't know, he
> doesn't provide more information).
> These are at least all parameters concerning loudness, I'm aware of (of
> course, they all seem to depend much on the single experimental design).
>
> [Bregman, Albert S.: Auditory Scene Analysis. The Perceptual Organization
of
> Sound, 4th printing, Cambridge 2001 (1st ed. 1990).
> Terhardt, Ernst: Akustische Kommunikation. Grundlagen mit Hörbeispielen,
> Heidelberg 1998.]
>
>
>
> All the best,
>
> Wolfgang
>
>
>
> ----- Original Message -----
> From: "Annekathrin Weise" <Annekathrin_Weise@xxxxxx>
> To: <AUDITORY@xxxxxxxxxxxxxxx>
> Sent: Tuesday, May 10, 2005 5:29 PM
> Subject: How to create apparent continuity of a tone without increasing
the
> loudness of the white noise about 20 times as that of the tone?
>
>
> > Dear list,
> >
> > I would like to create the auditory illusion "apparent continuity". The
> > structure of my tone is: 350ms tone (A) - 25 ms burst of a white noise
> (B) -
> > 275 ms tone (A). A is a 440 Hz pure ton.
> >
> > Does anybody know if there is a possibility to create an apparent
> continuity
> > of the tone A without increasing the overall amplitude of the white
noise
> > about 20 times as that of the tone? Or is it a strict condition to
enhance
> > the loudness to create such an auditoy illusion effect? Or is it a
strict
> > condition to enhance the loudness if you want creat such an auditory
> > illusion effect?
> >
> >
> > Best, Annekathrin Weise.
> >
> > --
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