[fluid-dev] R: Re: How to change settings (Reverb, Chorus, Gain, Bank) while Fluidsynth is running as a server (no shell)?

[address@hidden]

>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, address@hidden
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/
>>
>> 
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>




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/