I don't know whether it will work or not but, judging from some basic
neurophysiology of hearing, it is likely to require that the cutoff be
at a rather high frequency, at least several kHz.
What frequencies have you been trying? How sharp is your cutoff?
(are you using digital or analog filtering?)
On 1 Jun 2003 09:27:47 -0700, tonyjeffs at aol.com (TonyJeffs) wrote:
>Anyone ever experienced the auditory phenomenon, similar to visual
>after image, known as the Zwicker effect? I'd always assumed it was
>straightforward to do, but trying it today, zilch. I've never heard of
>any first hand experience. Is it real? Anyone have such a .wav file?
>>Tony
>>>>Description:
>If you listen to a white noise type sound with a cut-off (60dB/Octave)
>at some
>frequency, like this:
>>20hz_______________ 8000hz
> |
> |
> |
> |
> _________________________________
>>>and then stop the sound, you will hear a pure tone at just above the
>frequency
>of the cut-off for a short time.
>>20hz 8000hz
> _
> ||
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>___________________ _____________________________
