Re: Qsynth not producing sound when used from within frescobaldi

[Guy Stalnaker]

I had the same problem with QSynth. But I cannot recall how/if I fixed 
it (I've since given up using my old MacBook once Apple also gave up on 
it in favor of a new Surface Laptop). But there may be a work-around.

If you run fluidsynth from the command line into shell mode (type 
fluidsynth then return), load the soundfont (load filename; needs to be 
the complete path to the sound font), you can then use a command to show 
the current settings, that will include the port fluidsynth is using 
(Help from the shell prompt should help you find it, I can't remember it 
off the top of my head). Now confirm that FB is using a device with that 
port number. That's the first thing. This gets a connection from FB to 
fluidsynth. It should work this way without using QSynth.

GS

On 10/17/2019 4:15 PM, John Helly wrote:
> Aloha.
>
> I'm using FB 2.20.0 with Qsynth 0.5.6 with fluidsynth 2.0.5 on OSX 10.14.6
>
> When I try to playback midi from a score within FB using Qsynth, Qsynth
> shows the midi messages and the green-light blinks on and off
> appropriately but I get no sound. I've loaded the
> GeneralUser_GS_v1.471.sf2 soundfont and cannot find out what's wrong.
>
> At one point this did work but the circumstances were odd.  I was
> similarly struggling to get it to work then, out of nowhere, there was
> scratchy irregular playback that finally stabilized and worked well.
> However, as I feared, when I tried to restart the setup, I was back to
> the same deal: all looks ok but no sound.  This points to something
> about the soundfile but I don't know enough to further debug.  Any
> thoughts or pointers would be welcome.
>
> When I play the same midi file with fluidsynth from the command-line
> with the same soundfile it works fine and SimpleSynth and VLC work fine
> so I know the computer audio is ok.
>
> I've tried changing the audio setting from default to speakers but no
> joy there either.
>
> Mahalo.
> J.

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