[LAD] CV data protocol in apps.

Julien 'Lta' BALLET elthariel at gmail.com
Thu Feb 18 10:30:42 UTC 2010


That's true, this isn't new at all. but it has been lost for some
times in the audio world in favor of midi, mainly afaik because too
much cables just drives people crazy :)

But actually, implementing it perfectly it jack apps may cost a lot if
your control rate is the same as the audio rate (for example computing
a filter coefs 96000 times per second). I think a new type of 'audio'
port having only a sample per period could be a simple and handy
solution to this (one of the problem may be when you connect more than
one cv to a port, mixing CV isn't necessarily the thing we want to do)

Anyway, CV is still, even after 50 year, a really nice way of
controlling audio parameters, and would be kind of a good solution for
mapping lv2 control ports to jack ports.


2010/2/18 Jörn Nettingsmeier <nettings at folkwang-hochschule.de>:
> On 02/18/2010 10:54 AM, alex stone wrote:
>> As a power user who's modestly (just kidding) keen on saving time,
>> using great workflow, and avoiding as much of the drudgery of editing
>> work over and over again to get an end result as is possible, i've had
>> the privilege and pleasure of testing and working with a data protocol
>> called CV, or control voltage, in these last 2 weeks.
> funny to call CV a "protocol" - it's been around since the 60s, and just
> describes the fact that a given processing unit reacts to an incoming
> voltage rather than a knob.
> at first, i wasn't quite sure if you're joking... but yes, it's very
> convenient, just totally not new :)
> much like a "one midi command per wire, running status on" architecture.
> compared to ardour's automation tracks (which are somewhat difficult to
> use), what does non-mixer do that's better?
> comparing midi and cv is apples and oranges imho.
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