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R2R & Timed parameter

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R2R & Timed parameter

Postby dpclarkson » Fri Aug 03, 2012 9:34 am

I've been playing around with the TIMED paramater lately,
and it occured to me, that when I switch from FREQD to SplitH
with R2R programs, I get a nice round low end boost.
Not sure if that's supposed to be, but it sounds really nice.
However, after I save and reload the same program, the
low end boost is gone; as if it doesn't save it properly.
Did anyone notice this also?
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Re: R2R & Timed parameter

Postby david1103 » Fri Aug 03, 2012 12:11 pm

i haven't tried with R2R. every nebula program does seem to act a bit differently. for example, some programs just won't let you rename their categories, they just disappear when you change then in NAT!?

changing to TIMED does seem to be all about the impact of a sound, it gets more punchy and focused. all pre-amp programs need the clean kernal on TIMED really, there is not enough action on this issue. developers are ignoring it in their libraries, supplying 2 versions of each program would be good. i think YR did have TIMED on his NAG pre-amp 10k version, so hats off to him!

what i have noticed is when you are changing the kernal to TIMED and have to enter the new kernal length, when you hit save sometimes all the kernal lengths change just a little to things like 50.1ms, 50.3ms (from 50ms). This is obviously a bug!

1. could it be related?
2. would it effect the sound?
3. can we get this fixed?

i would love to see some kind of update with a button that just changes everything intelligently to the max quality TIMED setting (for whatever program is loaded) and a button that goes back to what it was. we could then easily compare the 2 and toggle between them for render :D

the best way to toggle at the moment is using the economy button, but that's only any good once you changed all the settings first.
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Re: R2R & Timed parameter

Postby dpclarkson » Fri Aug 03, 2012 12:30 pm

Thanks, David1103!
So that means, using the preamps in TIMED
mode, should run in SPLITH, with only the
clean kernel on TIMED, and the odd and even
ones on FREQD?
I really hope that the R2R can be tweaked like
this; I won't be needing this library to run in
realtime, it's for rendering purposes only.
Also, I don't seem to get the TIMED kernels
above 30ms. How high do I have to set the
PROGRATE to get as high as 50ms?
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Re: R2R & Timed parameter

Postby david1103 » Fri Aug 03, 2012 12:57 pm

will someone please consider making this related info an official sticky?

Also, I don't seem to get the TIMED kernels
above 30ms. How high do I have to set the
PROGRATE to get as high as 50ms?


PROGRATE has nothing to do with it.

you need to adjust your XML to get TIMED kernels greater than 30ms. All the info on all TIMED related stuff lives in this thread:

http://acustica-audio.com/forum/index.p ... =viewtopic

In order to get up to 50ms in timed mode you need to edit the xml thats all. it will look like this-

<LTIMED> 30000 </LTIMED> change it to <LTIMED> 50000 </LTIMED>

It is impossible to make odd AND even kernals on TIMED as it triggers a bug that causes aliasing. General wisdom seems to be that CLEAN is the most important for TIMED, and you can try even OR odd and see if you can hear a difference.

I spent a whole night changing my whole library to TIMED where possible... it was a very boring night, but i couldn't stand to think about self imposed lower sound quality :shock:
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Re: R2R & Timed parameter

Postby Tim Petherick » Sun Aug 05, 2012 3:38 am

The low end boost thing your talking about is the two modes overlapping possibly?not sure . It's probably correcting on start up
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