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03-27-2017, 04:51 AM
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#1
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Banned
Join Date: Nov 2016
Posts: 416
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ReaVerb: on a 64-bit I.R., does it process at 64 bits?
64-bit source-signal and 64-bit I.R loaded into reverb; does ReaVerb maintain 64-bits throughout the process?
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03-27-2017, 02:41 PM
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#2
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Human being with feelings
Join Date: Jun 2010
Location: Somewhere PRO
Posts: 1,049
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Reverb processes in 64bit float, so any file loaded will be converted to 64bit float for processing.
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"REAPER... You're simply the best" - Tina Turner
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03-27-2017, 04:14 PM
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#3
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Banned
Join Date: Nov 2016
Posts: 416
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Quote:
Originally Posted by Aeolian
Reverb processes in 64bit float, so any file loaded will be converted to 64bit float for processing.
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Thanks. I get that Reaper is generally processing at 64 bits, but I was wondering if ReaVerb might be an exception, since it's a plugin rather than an integral part of the summing-engine, and since it might be built on 3rd-party libraries that might not be 64-bit.
If I get curious enough, I'll make a JSFX meter that measures down to 64 bits, and test ReaVerb on signals that are identical for the most significant 32 buts, but different in less-significant bits. If I get motivated to do all that.
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03-27-2017, 07:33 PM
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#4
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Human being with feelings
Join Date: Jun 2016
Posts: 584
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No disrespect intended, but why do you care? In most cases, in the end result the reverb will be a nearly inaudible part of a 16-bit MP3. There are precious few humans (if any) that could detect the difference between 32-bit reverb output and 64-bit under the most controlled conditions, but in the context of a mix/master/mp3 it is all but impossible. IIRC some of the very popular earlier Lexicon reverbs were 12-bit.
Quote:
Originally Posted by TryingToMakeMusic
64-bit source-signal and 64-bit I.R loaded into reverb; does ReaVerb maintain 64-bits throughout the process?
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03-27-2017, 07:50 PM
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#5
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Human being with feelings
Join Date: May 2009
Posts: 29,269
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__________________
Music is what feelings sound like.
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03-27-2017, 08:25 PM
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#6
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Banned
Join Date: Nov 2016
Posts: 416
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Thanks, karbo.
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03-27-2017, 08:56 PM
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#7
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Banned
Join Date: Nov 2016
Posts: 416
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Quote:
Originally Posted by drichard
No disrespect intended, but why do you care? In most cases, in the end result the reverb will be a nearly inaudible part of a 16-bit MP3. There are precious few humans (if any) that could detect the difference between 32-bit reverb output and 64-bit under the most controlled conditions, but in the context of a mix/master/mp3 it is all but impossible. IIRC some of the very popular earlier Lexicon reverbs were 12-bit.
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800 instances summed -> 29 dB increase in noise-floor. That is still, maybe, okay; but I'm not ready to lock myself into that, so looking at my options.
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03-27-2017, 11:38 PM
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#8
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Human being with feelings
Join Date: Jul 2008
Location: The Netherlands
Posts: 3,653
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Quote:
Originally Posted by TryingToMakeMusic
64-bit source-signal and 64-bit I.R loaded into reverb; does ReaVerb maintain 64-bits throughout the process?
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Well, I don't really know, but I would guess that ReaVerb converts the IR in 32-bit floating point format, but does do all its processing in 64-bit floating point.
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03-28-2017, 12:31 AM
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#9
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Banned
Join Date: Nov 2016
Posts: 416
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Quote:
Originally Posted by Tale
Well, I don't really know, but I would guess that ReaVerb converts the IR in 32-bit floating point format, but does do all its processing in 64-bit floating point.
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Thanks, Tale.
Why do you guess it converts the IR to 32-bit FP? Is that what Reaper does when you import a 64-bit WAV onto a track?
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03-28-2017, 02:13 AM
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#10
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Human being with feelings
Join Date: Jul 2008
Location: The Netherlands
Posts: 3,653
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Quote:
Originally Posted by TryingToMakeMusic
Why do you guess it converts the IR to 32-bit FP?
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Because this is the default storage setting for WDL's convolution engine, and I'm guessing that a) ReaVerb uses this engine, and b) it uses the default settings.
Quote:
Originally Posted by TryingToMakeMusic
Is that what Reaper does when you import a 64-bit WAV onto a track?
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No, AFAIK REAPER always converts to 64-bit FP internally (although there is a setting for track mixing bit depth).
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03-28-2017, 02:29 AM
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#11
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Banned
Join Date: Nov 2016
Posts: 416
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Thanks again.
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03-28-2017, 04:51 AM
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#12
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Human being with feelings
Join Date: Feb 2007
Location: Oulu, Finland
Posts: 8,062
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Quote:
Originally Posted by TryingToMakeMusic
800 instances summed
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Explains your user name here on the forum, I guess...
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I am no longer part of the REAPER community. Please don't contact me with any REAPER-related issues.
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03-28-2017, 05:11 AM
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#13
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Banned
Join Date: Nov 2016
Posts: 416
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Quote:
Originally Posted by Xenakios
Explains your user name here on the forum, I guess...
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lets hear your music then?
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03-28-2017, 07:13 AM
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#14
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Human being with feelings
Join Date: Jun 2013
Location: Krefeld, Germany
Posts: 14,784
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Quote:
Originally Posted by TryingToMakeMusic
since it's a plugin rather than an integral part of the summing-engine,
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What is the Audio format specification of VST (2) ? Does it even allow for 64 Bit ?
-Michael
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03-28-2017, 11:55 AM
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#15
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Banned
Join Date: Nov 2016
Posts: 416
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Quote:
Originally Posted by mschnell
What is the Audio format specification of VST (2) ? Does it even allow for 64 Bit ?
-Michael
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Thanks. Apparently the VST2 spec does not.
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03-28-2017, 11:15 PM
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#16
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Human being with feelings
Join Date: Jul 2008
Location: The Netherlands
Posts: 3,653
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Quote:
Originally Posted by TryingToMakeMusic
Thanks. Apparently the VST2 spec does not.
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Yes it does, see:
http://www.dith.it/listing/vst_stuff...23595e3da4fe33
EDIT: How else would you measure bit depth using Bitter, a VST2 plug-in.
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03-29-2017, 12:19 AM
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#17
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Banned
Join Date: Nov 2016
Posts: 416
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Quote:
Originally Posted by Tale
EDIT: How else would you measure bit depth using Bitter, a VST2 plug-in.
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Sure enough.
Quote:
Originally Posted by Tale
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Thanks for setting me straight. In that case, I don't know what Steinberg means by this, on their "VST3-Technology" page:
Quote:
64-bit processing
VST3 plug-ins are generally able to process audio data in 64-bit.
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https://www.steinberg.net/en/company...gies/vst3.html
Why would they boast about 64 bits in VST3, when it's nothing new? (The question is rhetorical; Steinberg does plenty of things that don't make sense.)
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