On Tue, Oct 22, 2002 at 03:09:52AM +0200, Tim Goetze wrote: > on average, the branched truncate costs more in this filter > than simply ignoring denormals. for this particular filter, > there doesn't seem to be a good reason to switch to floats > at least on the system i use. if i was pressed for a rule, > i'd say use doubles unless you need to store lots of them.
No, there is no good reason to switch to floats here. I havn't found that doubles are generally better than floats though - but I also dont have a way of prediciting it either. It would save be a lot of time if I did. > currently, i'm looking at what a sine wave looks like after > it's been handled by a good distortion stomp box. the way it > shapes the wave form seems easy to grasp, but as usual, i > am hesitant to implement what i don't understand fully ... I've found that the precise shape of the transfer function is important to the sound, do you have a model for the transfer function or are you just going to smaple it? > the recording seems to be of decent quality, and the iir > response irons away most of the noise anyway. but the most > important thing is i like the sound of it, which i do a lot. > i've tried about every of your impulses and, would you > believe it, liked the fenders the least. i regularly play > a fender super 60, for ten years or so. :) got to take > a response from it someday myself. Sadly heres where my zero knowledge of amps kicks in ;) I wouldn't know a fender form a hole in the ground. > >I'm wondering if this technique can be used for reverbs too - generate a > >purely "white" synthetic reverb tail, and apply an IIR the aproximate > >shape of the rooms impulse to it to make it sound more real... > > very interesting thought indeed. do you have a good response > for trying this? (sorry, "steve's flat" doesn't qualify, > "albert hall" is more like it ;) I have some, but there not included because there 1) very long 2) legally dubious. I dont think that deriving an EQ curve form them can be dodgy though - the hard part is more likly to be getting a purly white reverb - I suspect that all those allpass's and combs dont even out very well. PS "Steve's flat" was captured with a half knackered monitor and a three quarters knackered mic. I should probably do it again, as I have moved :) - Steve
