[LAU] Fluidsynth shift an octave down

Ken Restivo ken at restivo.org
Tue Jan 11 07:26:07 UTC 2011


On Thu, Jan 06, 2011 at 02:09:27PM +0100, Pedro Lopez-Cabanillas wrote:
> On Thursday 06 January 2011, Ken Restivo wrote:
> > Is there a way in fluidsynth to shift a whole soundfont up or down an octave?
> > 
> > Or would I have to edit the soundfont in Swami and permanently move the notes around?
> 
> You can use FluidSynth's MIDI router. For instance, type the following commands in FS' shell:
> 
> router_clear
> router_begin note
> router_chan 0 8 1 0
> router_par1 12 127 1 -12
> router_end
> 
> It transposes notes in channels 1 to 9 one octave down. See also: http://sourceforge.net/apps/trac/fluidsynth/wiki/UserManual#MIDIROUTER
> 

I tried this, and it did indeed shift the notes an octave down, but, it broke fluidsynth so that it doesn't respond to Volume or Expression CC's anymore!

Is that a bug in Fluidsynth or am I doing something wrong?

-ken


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