>All of these things can be controlled via MIDI messages, so why don't you >use the amidi command line app to script the messages, and just develop >your little app to take input from your GPIOs and fire those scripts?
That's another great idea! Two great suggestions in a few minutes, thanks Graham and Element Green. Now I just have to look for the appropriate MIDI commands. Just a doubt: are you sure fluidsynth's "internal gain" ( -g [0.2-1000.0]) is controlled by a MIDI command? I thought it was an internal setting, like a pre-amplification of the mixed voices just before sending the result to the audio device. Thanks again, people. :-) Fernando > >On Sunday, August 11, 2013, fcarello@tiscali. it wrote: > >> Hello everyone, >> >> first of all: a BIG, BIG THANK YOU to everyone here for Fluidsynth. >> It's a wonderful application, I >> like and use it a lot! >> >> I'm running Fluidsynth 1.1.6 on a small Arm board running Linux (something >> like a Cubieboard. >> Say a RaspPi on steroids). >> I recompiled everything to gain as much performances as possible, and >> am really happy about >> it (175 MB of SF2, 128 voices, 21ms latency and >> hardly breaks a sweat!). >> >> My question. hoping not to waste too much of >> your time. >> >> I'm running Fluidsynth in unattended Server mode ( -s ): the ARM board >> is headless and connected to a MIDI >> input (master keyboard and/or >> sequencer). >> >> I'd like to change some Fluidsynth settings "on the fly": >> >> - without >> resorting to the integrated shell (because I can't use it: headerless >> board without keypad) >> - without having to send >> MIDI commands using my MIDI keyboard (because it's very >> complicated with my model) >> - without restarting Fluidsynth >> >> In >> particular, I'd like to change: >> gain (-g) >> reverb (-R) >> chorus (-C) >> General MIDI bank >> >> So I was thinking of a shell >> script or C program I may write, >> triggered by an appropriate physical input (I can do that, I have >> plenty GPIOs on the >> board). >> The program/script should "talk" to Fluidsynth server and change some >> settings in realtime, without restarting >> it (a brief pause is OK). >> >> I've read the documentation, and from what I gather, it should be somehow >> possible using >> Fluidsynth API via libfluidsynth. >> But every example I've found creates a new Synth before setting >> parameters, etc. >> I >> don't want to create a new synth: I only want to change the settings of >> the Fluidsynth server which is already running. >> >> >> Is it possible? >> Any hint, code fragment...? >> >> Thanks a lot for your patience. :-) >> >> Best regards, >> >> Fernando >> >> >> Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale più >> di uno spot in TV. Per ogni nuovo abbonato 30 € di premio per te e per lui! >> Un amico al mese e parli e navighi sempre gratis: >> http://freelosophy.tiscali.it/ >> >> _______________________________________________ >> fluid-dev mailing list >> fluid-dev@nongnu.org <javascript:;> >> https://lists.nongnu.org/mailman/listinfo/fluid-dev >> > Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale più di uno spot in TV. Per ogni nuovo abbonato 30 € di premio per te e per lui! Un amico al mese e parli e navighi sempre gratis: http://freelosophy.tiscali.it/ _______________________________________________ fluid-dev mailing list fluid-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/fluid-dev
