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Re: [fluid-dev] Query: router_chan
From: |
Dave Serls |
Subject: |
Re: [fluid-dev] Query: router_chan |
Date: |
Sat, 5 Mar 2011 14:39:28 -0700 |
On Sat, 5 Mar 2011 21:09:18 +0100
"Pedro Lopez-Cabanillas" <address@hidden> wrote:
> On Saturday 05 March 2011, Dave Serls wrote:
> > On Thu, 3 Mar 2011 10:09:54 -0700
> > Dave Serls <address@hidden> wrote:
> >
> > >
> > > Returning to linux audio after a long hiatus.
> > >
> > > If I use router_chan in a fluidsynth instance like this:
> > >
> > > # change note events for odd channels to ridiculous invalid channel
> > > # note that channel nums are 0-relative in fluidsynth 1-relative on piano
> > > router_begin note
> > > router_chan 1 0 8 32
> > > router_chan 3 0 8 32
> > > router_chan 5 0 8 32
> > > router_chan 7 0 8 32
> > > router_chan 9 0 8 32
> > > router_chan 11 0 8 32
> > > router_chan 13 0 8 32
> > > router_chan 15 0 8 32
> > > router_end
> > >
> > > I receive no errors. But what really happens? It sounds pretty much OK.
> > >
> > > The code only checks the resulting channel for less than 0, setting it
> > > to 0 if so.
> > > If the channel has no preset -- does the event disappear?
> > > This is what I want, as I'm running 2 instances of fluidsynth, one
> > > translating the even channels high,
> > > the other the odd ones.
> > > My Yamaha has a 'split' keyboard function which will send the left hand
> > > to a channel 'paired' with
> > > the right hand on another adjacent even or odd channel.
> > >
> > I will shamelessly reply to myself.
> > 'router_chan 1 1 8 32' and lines for each odd/even channel will work.
> > Except for keyboard channels 1 and 2 which do not participate for some
> > reason.
> > Warning messages are emitted from
> > fluidsynth: warning: Channel out of range
> > for each noteon for a channel from the 'wrong' instance.
> > Is there anyway of forcing a NULL preset to a channel?
>
> This feature was introduced in FS 1.1.1 as a new API function
> http://fluidsynth.sourceforge.net/api/index.html#NewIn1_1_1
>
> The CLI program doesn't use it yet, as there is not any command for it.
> QSynth OTOH uses it in the channel view, context menu (RMB). The presets for
> all channels can be saved with a given name on disk.
>
> > Will that suppress the warnings?
> > Has anyone ever used the channel routing feature?
>
> The MIDI router shouldn't be used for this.
>
> Regards,
> Pedro
Thank you, Pedro.
Yes, the router should not be used for this.
From poking around, I did discover issuing the 'prog xx 128'
will result in channel 'xx' having no preset.
>
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