Motu Volta

[Chris Strellis]

Hi Michael,

Yes, that's right.  My point is from "the host software then routes to
the outputs of any DC-
coupled audio interface connected to the computer".

No audio card worth its salt should be DC coupled.  DC offsets are BAD
in audio => pops and clicks, reduction in dynamic range. So you need
their card or modify your existing one and dedicate it to this or make
it switchable.

Cheers

Chris

> -----Original Message-----
> From: Michael Zacherl [mailto:mubar04 at blauwurf.at]
> Sent: 02 April 2009 10:30
> To: Chris Strellis
> Subject: Re: Motu Volta
> 
> Hi Chris!
> 
> <The first product of its kind, Volta receives conventional virtual
> instrument input such as MIDI notes, MIDI controller data
> or even high-resolution audio track ramp automation and then responds
> by outputting a corresponding control voltage
> signal, which the host software then routes to the outputs of any DC-
> coupled audio interface connected to the
> computer. The resulting DC voltage can then drive a standard CV input,
> such as those found on classic modular
> synthesizers, modern analog mono synths and even popular effects
> processors such as Moogerfoogers(tm). >
> 
> from:
http://www.motu.com/marketing/motu_products/software/volta/volta-
> press-release.pdf/download
> 
>    HTH -  m.  :-)
> 
> 
> On Apr 2, 2009, at 11:01 AM, Chris Strellis wrote:
> 
> > Hi Paul,
> >
> > No one has done it before because you need a DC coupled audio card
> > i.e a card that goes down to 0.00000Hz!
> >
> > Most audio cards have an AC coupling (DC blocking) capacitor on
> > their inputs and outputs that acts like an high pass filter and
> > removes DC offsets.
> >
> > You need to buy their special audio interface or modify your
> > existing audio interface to remove the inline capacitor and put a
> > wire link instead.
> >
> > Not impossible but probably more hassle than most people would
> > tolerate.
> >
> > Cheers
> >
> > Chris
> >
> > From: music-bar-bounces at lists.music-bar.org [mailto:music-bar-
> bounces at lists.music-bar.org
> > ] On Behalf Of punkdISCO
> > Sent: 01 April 2009 19:40
> > To: 'Music-bar'
> > Subject: Motu Volta
> >
> > Hey all
> >
> > It's a pluggin that uses any standard audio interface to generate
CV/
> > Gate for analogue synths.  It is even self tuning!
> >
> > http://www.youtube.com/watch?v=zyHtyylDmJ4
> >
> > Such a simple idea.  Wonder why it has taken so long for someone to
> > do this..  I think it is Mac only which sucks.  Not sure how much it
> > will cost.   Im sure in a year there will be dozens of copies..
> >
> > Good stuff..
> >
> >
> > Paul
> > London
> 
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