Quote:
Originally Posted by Warp69  How do you define "exactly"?
I don't have access to a Lexicon PCM96, but I did find some impulse responses from the Hall algorithm (posted by zmix in the reverb subculture thread) - Small Abrupt Hall preset. I thought it would be funny to see if I could match that preset with the PCM96 - the Native PCM have the exact same preset. Well, it was not possible - no matter what. With the exact same setting you have a difference of exactly 16 samples for the delay lines - the PCM Native have 16 samples shorter delay values compared to the PCM96 - you will of course not be able to compensate with larger size.
This could of course be a feature, but why is the difference this beautiful number of 16 samples? I would guess it's related to (a bug in) the block based processing in the Native PCM. |
Whoa, look at fancy Doctor Science with all his fancy words! La-de-DAH!!
This is an interesting find. The Concert Hall "crackle" that people discussed on the PCM Plugin is very clearly a block-rate bug as well. My guess on that one is that the modulation was happening at a multiple of 16 or 32 samples, but that the block size being used by the DAW didn't divide evenly into that block size, and that there was an artifact at the block rate of the DAW.
Are you saying that you think that all of the delay lines are 16 samples different in length than on the PCM96? How does this affect the sound?
You are assuming that this is a bug in the PCM Native plugin, but are you sure about this? It could be a bug that was on the PCM96, and fixed in the PCM Native plugin. NS has implied in some of his GS posts that the PCM96 used a block size of 32 samples (well, at least it was implied to me and the few other people on this planet who follow this stuff to such a degree, and read between the lines on such things). Which of the presets sounds better to your ears, the zmix example or the PCM Native?
I haven't shaved in a week or so. Maybe it is time to grow me a
reverb designer beard. I'll bet the wife would just LOVE that. It might help my
slide playing as well.