Re: Looperlative LP1 - sample rate

["gareth.whitcock" <gareth.whitcock@ntlworld.com>]

Beg to differ here.
You're right about sine waves but the square variety contains only odd 
harmonics .
If they contained all frequencies they would be noise i.e. unpitched in 
our 
perception

Gareth

>  Boot up any analog synth and see for yourself.  Basically a square wave 
> at any frequency contains all frequencies at varying levels. Doesn't 
>make 
> much sense, but its true.  A sin wave contains exactly one and only one 
> frequency.
>
> I would be willing to bet that since a square wave contains all 
> frequencies, it excites all kinds of resonances - in the headphone 
> speakers, in the amplifier, in the air next to the ear, and everything 
>in 
> the body.  A sin wave will only excite things which resonate at that 
> frequency.  What you're hearing in a 15KHz square wave are those 
> resonances as well as the fundamental 15Hz signal - those resonances can 
> be at any frequency, and could have lots of resonances within the human 
> hearing range.
>
> Jon
>