Re: [fluid-dev] libinstpatch integration?

[Aere Greenway]

On 06/07/2014 01:48 AM, David Henningsson wrote:
> I'm not sure exactly how libInstPatch works, but I've been thinking 
> that maybe one could just mmap the entire soundfont instead of loading 
> it into RAM. Or possibly load the metadata into RAM, but not the 
> sample data.
> With today's modern SSD drives with low seek time, it should perhaps 
> be possible to load things directly from disk while keeping reasonably 
> low latency. That's just an untested idea though.
David:

This is pure speculation, but I think there is software out there that 
does this (or something similar).

I'm thinking that AU Lab on Mac OS X is an example (it uses soundfonts).

When using that, if I switch instruments while holding out a chord & 
notes (in performing), the sound briefly cuts-out during the instrument 
change, then resumes.

I experience a similar problem when switching instruments using 
ZynAddSubFX, on Linux.

The way to avoid this, is before I start to perform such a piece, I 
change to each of the instruments I will be using (but don't actually 
play any notes at this time).

Then, when I switch instruments during the performance, the change is 
seamless.  The change isn't totally seamless with ZynAddSubFX, but it's 
at least barely noticeable.

--
Sincerely,
Aere