Hi Chris,
Am Mo., 18. Juni 2018 um 04:57 Uhr schrieb Christopher Leger <
address@hidden>:
fluidsynth: warning: Requested a period size of 64, got 940 instead
The weid period size of 940 seems to be an indication that there is some resampling going on, maybe due to an ALSA plugin between fluidsynth and your hardware. Try forcing fluidsynth to use the ALSA hardware layer directly and explicity set the sample rate:
-o audio.alsa.device=hw:1 -r 44100
This assumes that the usb soundcard is your second card, i.e index 1. aplay -l should give you a list of your cards and their indexes.
Cheers,
Marcus