Re: [fluid-dev] Fluidsynth instrument attenuation

[Edenyard]

Many thanks for your response, Chris. The PDF was very interesting, even 
if I don't fully understand some of the programming type content of it.

Do you know whether your proposed modifications were actually 
implemented in FS? If so, can one now get a 1:1 correspondence between 
dBs of attenuation set versus dBs of attenuation actually obtained?

Finally (bearing in mind this attenuation matter and the proposed use 
with Jorgan, etc.), would you have any recommendation for which version 
of FS I ought to be using to update my system? There are mixed messages 
floating around about the success (or otherwise) of the various 
versions/updates of FS and I'm a bit confused over which version would 
be most reliable. I'm still on version 1.0.6 which has worked for my 
system with Jorgan for 5 years, albeit with various 'artefacts' in evidence!

Many thanks for your help!

Cheers,
Gerald.


On 21/07/10 01:11, S. Christian Collins wrote:
> Preset/Instrument level attenuation attenuates 0.4 dB for every 1 dB
> that you specify (according to the values reported by Vienna Soundfont
> Studio 2.xx). The reason for this behavior is compatibility... this is
> how Creative/E-MU designed their synth engines, and the thousands of
> SoundFonts out there expect this behavior. You can read more details
> about this in this PDF file
> <http://www.schristiancollins.com/temp/20080817_changes.pdf>, which was
> my proposed list of changes for FluidSynth 1.0.9.
>
> -~Chris
>
> On 07/19/2010 11:28 AM, Edenyard wrote:
> > I'd be grateful if someone here could kindly unravel a bit of a
> > mystery in Fluid Synth for me regarding instrument attenuation.
> >
> > I've been making a new organ soundfont using samples from the
> > excellent new Silver Octopus romantic set and I'm now tryingto get the
> > right balance between the various ranks by adjusting the instrument
> > attenuation for each instrument. I've found quite a bit of conflicting
> > information in different places about the relationship between what
> > the attenuation setting is set at and what actual attenuation Fluid
> > Synth (and others) actually apply to the instrument.
> >
> > Also, it seems as though the relationship has changed sometime over
> > the last few releases. I've tried googling and get presented with
> > quite a lot of programming type stuff that unfortunately leaves me
> > rather in the dark as a non-programmer.
> >
> > So - in a nutshell, is 10dB of attenuation as set going to give me
> > 10dB of actual attenuation for my instrument, or is it something else?
> > Also, which version of FS should I be using to get the right answers?
> >
> > In case it matters, I'm using Jorgan in conjunction with FS 1.0.6 on a
> > Linux Slackware system running a 2.4 kernel - although this may get
> > updated as part of the mods I'm doing.
> >
> > Sorry if this question is really trivial, but it's stumping me at
> > present! Thanks in anticipation for any help.
> >
> > Cheers,
> > Gerald.
> >
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