[fluid-dev] pitch shifting

2011-11-20 Thread Michael Geis
Hi, I am trying to understand how fluidsynth performs pitch shifting when the pitch to be played differs from the rootkey of the sample used to synthesize the sound. To me it looks like this happens in src/rvoice/fluid_rvoice_dsp.c (with another implementation in unused/fluid_dsp_float.c). Are

Re: [fluid-dev] complexity of soundfont synthesis engine

2011-09-21 Thread Michael Geis
: On 09/19/2011 04:20 PM, Michael Geis wrote: We were under the (probably naive) impression that all a sampler needs to do is loop over wave tables and apply envelopes. Seeing that the soundfont specification actually allows for greater complexity makes us wonder whether in order to play

Re: [fluid-dev] complexity of soundfont synthesis engine

2011-09-20 Thread Michael Geis
>Also note that the strength of the note-on often affects the output, e g >on a piano sound, a weak note has less treble than a strong one. > >> My apologies if I am somewhat lacking coherence here, I am still trying >> to get a decent grasp on the subject matter. > >I'm not exactly sure what woul

[fluid-dev] complexity of soundfont synthesis engine

2011-09-19 Thread Michael Geis
Greetings, I posted a question on using fluidsynth to extract .sf2 sounds to .wav files a few weeks ago. The answers I received indicated I had to get a better grasp of the subject matter and as a consequence I had to think over what I am doing. Sorry if this post is perhaps only marginally rel

Re: [fluid-dev] using fluidsynth to create soundfont based samples for a supercollider sampler

2011-08-26 Thread Michael Geis
n Wed, Aug 24, 2011 at 02:06:49PM -0700, Michael Geis wrote: > The current idea is to create each sample file by passing fluidsynth a one > note .mid file, > outputting the raw wave data to file and then converting to .wav with sox. > > The sampler is not very complicated, it es

[fluid-dev] using fluidsynth to create soundfont based samples for a supercollider sampler

2011-08-24 Thread Michael Geis
Hi, am trying to use soundfonts for a supercollider sampler that friends are working on. It would be enormously helpful if you could give feedback on my train of thought below regarding whether and how this could be achieved with fluidsynth. As I am new to soundfonts, my approach may be rathe