[sdiy] Re: Limits of perception...

cheater cheater cheater00 at gmail.com
Mon Feb 22 23:04:11 CET 2010


Which reminds me that she has some really cool demos for
psychoacoustic illusions on her page here and there:
http://deutsch.ucsd.edu/ Really worth checking out!!

D.

On Mon, Feb 22, 2010 at 22:53, thx1138 <thx1138 at earthlink.net> wrote:
> On 2/22/10 11:54 AM, "Tom Wiltshire" <tom at electricdruid.net> wrote:
>
>>
>> On 22 Feb 2010, at 18:01, Nick Zampiello wrote:
>>>  do you think you can't tell the difference between 16 and 24 bit
>>> ( for audio)?
>>> do you think 44.1k sounds just like 48k?  96k?
>>
>> I don't know, but I'm damn sure that there comes a point when you
>> *can't* tell. And that's what I'm getting at - above a certain limit,
>> extra 'quality' is well beyond what human beings can perceive.
>> My original contention was that that point is actually much sooner
>> than most people think. Increasingly, I think digital technology is
>> arriving at that point.
>>
>>>> it seems to me that the 'perception' answer is all about what
>>> people are
>>>> tuned in to mentally.
>>
>> I disagree. You can be as tuned in as you like, but you still can't
>> hear 100KHz. I agree that *exactly* where the limit lies might depend
>> in some degree to how tuned in you are (ear training, genetic luck,
>> etc) but that's a debate over 20Khz vs 25. There's a clear limit
>> whether we're talking about pitch perception, bit depth, convertor
>> accuracy, whatever. Human beings vary, so individual results vary,
>> but that's science, and it doesn't stop there being a scientific fact
>> about what the limits are.
>>
>> Like Greg said, if it rocks you, it works.
>>
>> Ok, I promise I'll shut up now.
>>
>> T.
>>
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> Hi Folks,
>
> You should read Dr. Diana Deutch's papers on Perception and such. I met her
> years ago at the CARL Research center at UC San Diego. I think she still
> teaches at UC SD. http://www.philomel.com/ and http://deutsch.ucsd.edu/ and
> http://en.wikipedia.org/wiki/Diana_Deutsch.
>
> CARL Research http://crca.ucsd.edu/cmusic/ We implemented this software at
> E-Mu and it was used extensively for Drumulator, Emulator II and DigiDrums
> projects,
>
> Regards,
>
> Terry
>
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