18 Feb
2010
18 Feb
'10
6:52 a.m.
On Thu, Feb 18, 2010 at 11:30:42AM +0100, Julien 'Lta' BALLET wrote:
Hello,
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
dunno. but i think timestamped events are better.
maybe we should just specify some 32bit/float midi replacement ?
iE somthing that can be translated down to midi.
but still has float values.
an event consisting of uint32_t and a float
could encode all sorts of stuff.
2^24 float CC
21 octaves with 1/65536 tones. noteon noteoff with float velocity.
still got 253 eventtypes free....
all in a nice 8byte per event thingy.
of course it would be discussed to death :(
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.
Regards,
Lta.
2010/2/18 Jörn Nettingsmeier <nettings(a)folkwang-hochschule.de>de>:
--
torben Hohn
On 02/18/2010 10:54 AM, alex stone wrote:
--
BALLET Julien
Head of LabFree, Free software laboratory of Epitech
Phone : 01 53 14 59 32 || 06 17 32 86 93.
Mail : <j.ballet(a)freelab.epitech.eu> -- <elthariel(a)gmail.com>
Web : http://www.labfree.org/
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Linux-audio-dev(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-dev 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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