[A6] A6 sine osc

[Wayne Rudd]

Have you tried a VCA tune.?..came up on the list a little while ago that the 
Auto Tune doesn't include the VCA's...you need to choose that specifically 
from the tune menu.

cheers, Wayne.


> ------------------------------
> 
> Message: 3
> Date: Sat, 12 Mar 2005 21:06:49 -0800
> From: "Shawn O." <sobrien at wavecable.com>
> Subject: Re: [A6] A6 sine osc
> To: Kim Johnsson <kim.johnsson at ineo.fi>,	A6 mailing list
> 	<a6 at code404.com>
> Message-ID: <4233CA69.7070008 at wavecable.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
>  >So, is this the standard A6 version of a sine wave, or is it just mine
> 
> that's a bit bent?
> 
> 
> I have 2 Andromeda's now and checked this out on both of them, same 
> thing, this is at really low frequencies that this occurs,. happens with
> 
> triangle and square waves as well, correct me if I am wrong I believe 
> this is actually how the moog modular VCO of the time performed with its
> 
> older component discrete construction,
> 
> I would guess modules from Modcan and MOTM have much better tracking 
> with producing sine waves that are pure at low frequency levels, both of
> 
> those companies seem to be into producing analogue perfection.
> 
> One thing that makes me scratch my head is how the same FM patch on two
> 
> different Andromeda's does not sound the same at all, well even between
> 
> different voice chips when you are cycling through on patches that use 
> allot of FM,
> 
> also of note, so far 2 out of 3 Andromeda's that I have had my hands on
> 
> display an interesting amplification of white noise on at least 1 of the
> 
> voices playing the patch Amsterdam kick patch in rotary mode (think this
> 
> is preset1 81), on some voices the amplification of white noise is 
> subtle, on others it is very noticeable, my work around for this is 
> saving that patch to the user bank and turning the white noise off or 
> assigning it to play on a voice that the noise is not noticeable.
> 
> I think this is a problem with the way the ASIC's are manufactured where
> 
> something gets screwy in the VCA portion of the chip during lithography,
> 
> kind of makes me wounder how much better of an instrument this would be
> 
> if the voice chips were larger or had 1 voice on each instead of 2.
> 
> ~Shawn O'Brien
>