[sdiy] 2164 4P LPF perfected

[Harry Bissell]

:^)

think: sine, cosine

H^) harry



----- Original Message -----
From: Ian Fritz <ijfritz at comcast.net>
To: Tom Wiltshire <tom at electricdruid.net>, David G. Dixon <dixon at interchange.ubc.ca>
Cc: synth-diy at dropmix.xs4all.nl
Sent: Mon, 25 Oct 2010 11:33:15 -0400 (EDT)
Subject: Re: [sdiy] 2164 4P LPF perfected

At 03:47 AM 10/25/2010, Tom Wiltshire wrote:

> > Well, you might be right, but I notice that people use the word 
> "quadrature"
> > even when only two waves are being generated.
>
>This case is what people call "biphase" surely? E.g. With both in-phase 
>and out-of-phase outputs.

Quadrature refers to two waves being 1/4 of a cycle out of phase. So it 
really doesn't matter if all four waves are physically generated.  And of 
course, the second two waves are just the inverses (x -1) of the first two.

Ian 

_______________________________________________
Synth-diy mailing list
Synth-diy at dropmix.xs4all.nl
http://dropmix.xs4all.nl/mailman/listinfo/synth-diy

-- 
Harry Bissell & Nora Abdullah 4eva