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From: | Vesa Paatero |
Subject: | [fluid-dev] ALSA Raw connection (Re: Reading input from a MIDI device) |
Date: | Fri, 27 Dec 2013 00:37:17 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
Hi! Getting back to the discussion:
Thanks for these hints, David. Raw MIDI without any mixer activity by CPU sounds like a good choice to minimize latency.Here is a command line whereby the system works with "noteon": fluidsynth -v -a alsa -o synth.gain=3.0 -o synth.verbose=yes /usr/share/sounds/sf2/FluidR3_GM.sf2The easiest way is to use the alsa rawmidi driver. Find the card name by looking at the /proc/asound/cards file - find the row corresponding to the right sound card, and the label within brackets. In my case it's "Piano", so then the options I need to add are: " -m alsa_raw -o midi.alsa.device=hw:Piano" (of course in your case replace "Piano" with your card name)
I tried the ALSA raw option but it seems that "aconnect" can only be used to connect the MIDI input device to FluidSynth when "-m alsa_seq" is given to FluidSynth because only then a suitable connection entry shown by "aconnect -lio" is created.
So, when using alsa_raw, what is the recommended way to connect a MIDI input device?
Thanks, Vesa
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