Re: [fluid-dev] defaulting to bank 0 and preset 0 on startup in fluid library

[Louis B.]

Yep, chaining the example I think would be a good idea as this I think
that is a better default (as I followed the example rather blindly
when writing my code -- but it was _very_ easy to integrate with Piano
Booster) Starting up fluid synth is then more like turning on a
hardware synth -- you always hear a sound even if you don't send a
program change first.

Louis

On Wed, Oct 28, 2009 at 8:04 PM,  <address@hidden> wrote:
> Hello Louis,
>
> Quoting "Louis B." <address@hidden>:
>
>> Hi All,
>>
>> I have another small change I would like to see in the next release  if
>> possible.
>>
>> when commenting out the following line 51 from example.c no sound is
>> produced
>>
>>  /* Select bank 0 and preset 0 in the SoundFont we just loaded on
>>     channel 0 */
>>  //fluid_synth_program_select(synth, 0, sfont_id, 0, 0);
>>
>> I believe that the system should default to bank 0 and preset 0 when a
>> sound font is first loaded. Some midi files forget to set a preset
>> especially single piano pieces. This caught me out a few times and I
>> had to add the following code to my start up.
>>    for (int channel = 0; channel < MAX_MIDI_CHANNELS ; channel++)
>>    {
>>        fluid_synth_program_change(m_synth, channel, GM_PIANO_PATCH);
>>    }
>>
>> However the standalone version of fluidsynth does not have this
>> problem and defaults to preset 0.
>>
>
>
> I think it does default to bank 0 preset 0 on all channels.  The issue is
> actually with the fluid_synth_sfload() call in the example code.  The 3rd
> parameter is called reset_presets.  If its FALSE then no instrument changes
> are made on any MIDI channels.  If TRUE then all MIDI channels are refreshed
> (as if they had bank/program change messages sent) which may cause new
> instruments to get used from the loaded SoundFont.  Perhaps the example
> should just be changed to pass TRUE as the 3rd parameter.
>
>
>>
>> Thanks
>>
>> Louis
>>
>
> Regards,
> Josh
>
>