On Saturday 05 February 2005 11.37, Jens M Andreasen wrote: [...morphing between impulse responses etc...] > Use a 'wobble-generator' to crossfade between two (or more) samples > taken at different locations. > > Cheat and 'Wobble' the input and 'wiggle' the tail slightly.
Another thought: It might be interesting to apply that idea to a set feedback network delays or similar, with similar but different tuning... > > I *do* have an idea about what kind of problems that would pull > > in, though: It would be like looping a sampled waveform, except > > each sample is an impulse response... So, you need a nice, click > > free, non repetitive sounding loop. :-) > > Good thinking! > > Click free loop can be automated. > Quantifying 'nice' is harder ... > > Non repetitive ... Say we morph between two 'nice' loops: > > Loop A is 2.00 seconds > Loop B is 2.71 seconds > Crossfade 3.14 seconds (full circle) > > ... then we would get in the right ballpark for a simulation of the > sameness, though everchanging sound of complex sustained notes. > > This is for the sustained part though, and might not translate > verbatim to the decay of a room? Why would you need to separate them? AFAIK, you only do that with feedback networks and similar designs. The early reflections are just a part of the impulse response. > [...] > > > This is a well known way to "cheat" to save cycles. > > Or perhaps it is: > > A simplified model of a rooms characteristic decay combined with a > simplified model of the turbolence, sounds better than without the > simplified turbolence. Yeah, that's probably more accurate. > In a parallel universe it could argued that, a speech-synthesizer > singing 'Lieder' is much more convincing if you have the appropiate > Bontempi Piano to go along with it. *hehe* //David Olofson - Programmer, Composer, Open Source Advocate .- Audiality -----------------------------------------------. | Free/Open Source audio engine for games and multimedia. | | MIDI, modular synthesis, real time effects, scripting,... | `-----------------------------------> http://audiality.org -' --- http://olofson.net --- http://www.reologica.se ---
