Re: [fluid-dev] Query: router_chan

[Dave Serls]

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?
  Will that suppress the warnings?
  Has anyone ever used the channel routing feature?