out of band and off topic

[Goddard, Duncan]

> well, I think rupe proved that most people can. but how? the first
> component of a square wave that makes it different from a sine is the
> third harmonic..... 27kHz, in the case of a 9kHz source. it's broadly (and
> obviously erroneously) accepted that human hearing extends no further than
> 20kHz on a good day, hence the choice of sample rate for cd/dat/digital
> audio. it's one of those things that is easy to prove but hard to explain,
> and if you haven't the means to prove it (like when you're arguing about
> it in a pub), no-one believes you.
> presumably, *any* distortion of the fundamental is technically a harmonic
> and therefore at least twice the fundamental.... or have I forgotten more
> math than I thought?
> 
> d.
> 
> ----------
> From: 	Paul Perry[SMTP:pfperry at melbpc.org.au]
> Sent: 	25 August 2000 02:01
> To: 	Goddard, Duncan
> Subject: 	RE: Thrift opportunities
> 
> At 06:27 PM 24/08/00 +0100, you wrote:
> 
> >I've spent hours under the hoods of at least two big neve desks. (rupert
> has
> >this interesting theory- he even demonstrated it in blind listening
> tests-
> >that ordinary people can tell the difference between sine and square at
> >9kHz.... 
> 
> Hell, even *I* can hear a diff at 9KHz.. is this a mipsrint, or what?
> 
> paul 'cloth eared' perry Melbourne Australia
> 
> 


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