Subject: Re: control surfaces (was Re: [linux-audio-dev] GUI-free ardour)
From: Lance Blisters (geoff_AT_ugcs.caltech.edu)
Date: Wed Apr 18 2001 - 04:46:20 EEST
> > For variable values, i have the wonderful 'bitstream pro' midi controller,
> > which gives me 8 sliders, 32 knobs, 8 toggle switches, and an lfo-driven
> > parameter.
>
> whats the price on this, compared to the PC1600X (16 sliders, 16
> buttons, plus a data wheel) ? can it generate 14 bit CC values ?
at 450 euro, i think it is competetively priced (can't find a price online
for pc1600x anymore) I don't have it in front of me, but i'm pretty sure
the default mode is 7 bit, and i suspect that is the limit on resolution.
On the other hand, the 'bitstream pro' is reprogrammable via sysex messages,
and one can assign 24 bits of data to each controller. I haven't done
anything with this (the default cc mode was perfect for me) so i can't say
how flexible this is. A spiffy gui is only available only for windows, but
the protocol for reassigning controls is freely available, and the waveidea
fellas said they were happy to help anyone developing a mac/linux gui.
see waveidea.com for info.
> > Regarding control of sound card's hardware mixer, GDAM has no support for
> > this. One of GDAM's weaknesses is that a song can be moved between
> > devices, but a song cannot be played to two devices at once.
>
> I initially thought that you meant "routed to 2 soundcards, with the
> channels split across them". But now I see (I think) that you mean
> "duplicate the output and send it to multiple devices", right ?
Correct.. GDAM cannot duplicate an audio source and send it to multiple
devices", only mix multiple sources for a single device and switch a source
from one device's mix to another. DJ mixers generally have only 2 stereo
output channels, and 2 or 4 inputs. Both outputs (preview and room) get every
input, but with different sets of volume controls. This allows the DJ to
preview a new track mixed in with whatever the room is hearing. GDAM isn't yet
attempting completely flexible, N by N channel support (may never). But i
would like to see simple routing, like common dj hardware. We just need to
fix our 'tee' source :)
-geoff
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