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#1
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Import Audio - bit depth changed?
New user here. I'm importing 96k 24 bit stereo file into PT12. This file has a wide dynamic range - some peaks are very close to maximum (0 db). I know this because I can see it in two other tools (Audacity & WavePad). But after I import into PT, it appears that I have a whole lot more headroom than before. The peaks are well below max.
If I do nothing else to the file and just bounce it to another file - everything is preserved as it was in the original file.. My session bit depth is 24 bits. My waveforms setting is peak. My rendered File Bit Depth is 'Follow Session Settings' Now having additional headroom is not necessarily a bad things, but it's confusing. All I want to do with this file is to compress it, add some reverb, and clean it up a bit. I've read that internally PT does it's processing into 32 bit floating point, perhaps this is somewhat related? Or perhaps I'm misreading the edit window. I would assume that 0 db is the maximum height in the edit window. I've tried (or I think I've tried) every different combination of options on the import and preferences panel. Thanks in advance for any thoughts, suggestion? |
#2
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Re: Import Audio - bit depth changed?
Option-A.
or double click the Magnifying Glass tool. |
#3
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Re: Import Audio - bit depth changed?
0db or 0vu on the PT meter scale is -20. The top of the scale is 0db full scale . Between -20 & 0dbfs is your available headroom before clipping. Most plugins are optimized for an input of around 0vu. You can bring your final mix level up after processing.
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Dell Precision 490 Workstation, dual 4 core 5355 Xeon, 16gb Samsung DDR2 ECC Ram - Windows 7 Ultimate - Nvidia GTX 650 - 3 x Internal WD Blacks - PT 2018.3 - Digi 002R - Original Mackie HUI - 3 screens - JBL Monitoring. Dell XPS 8700 i7-4790 - 24gb RAM - Windows 10 - Nvidia GTX 1060 6GB with Studio driver 546.01 - 2 x Internal Samsung 860 EVO SSDs, and MSATA card - Davinci Resolve Studio 18.6.4 - 3 screens - Blackmagic Speed Editor - MK1 Presonus Faderport - Canon C100 mk2 - Atomos Ninja 2 - Zoom H2n |
#4
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Re: Import Audio - bit depth changed?
Right click the meters in the mixer. It may be set to RMS, VU or something else that does not reflect peak levels.
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2010 Dolphin Award for Production / Engineering AVID Certified Instructor |
#5
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Re: Import Audio - bit depth changed?
Thanks for replies. Maybe I haven't been clear. I've attached two screen screen shots -
One from Audacity (you see the same thing in WavePad) which shows that my peak is right near the limit The other from PT - after I did Option A - seems to show headroom. There's a clear gap between that peak and the top of the display. |
#6
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Re: Import Audio - bit depth changed?
Quote:
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Studio rig - Pro Tools|HDX 2018.7 | Logic Pro X.4.2 | Avid HD I/O (8x8x8) | 6-core 3.33 Westmere w/24GB RAM | OS 10.12.3 | D-Command ES | Eleven Rack | Vienna Ensemble Pro 5 Mobile rig - Macbook Pro i7 w/16GB RAM | UA Apollo 8p | Pro Tools|HD 2018.3 | Logic Pro X.4.2 | OS 10.12.6 |
#7
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Re: Import Audio - bit depth changed?
Stig - Thanks for the prompt response. So is there any way of either
1- Getting rid of the "air" - in other words getting the 0 DB 'ticks' aligned to the top & bottom of the track OR 2 - Getting horizontal lines to show across the track display so it's easy to see where I'm close to 0 db? I've attached screen shot from WavePad showing what I mean. Ideally you could do both. |
#8
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Re: Import Audio - bit depth changed?
Quote:
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Studio rig - Pro Tools|HDX 2018.7 | Logic Pro X.4.2 | Avid HD I/O (8x8x8) | 6-core 3.33 Westmere w/24GB RAM | OS 10.12.3 | D-Command ES | Eleven Rack | Vienna Ensemble Pro 5 Mobile rig - Macbook Pro i7 w/16GB RAM | UA Apollo 8p | Pro Tools|HD 2018.3 | Logic Pro X.4.2 | OS 10.12.6 |
#9
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Re: Import Audio - bit depth changed?
are you saying that that little line in PT is "0" ... ??
would that mean over the line shows overs ??
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Macmini M1 8/512 -OS 12.3.1 and PT2022.4 Logic Pro X 10.7.4 RME BabyFace Pro Macbook Pro july 2014 2.5ghz 16gb ram 512gb SSD - OS11.6.5 - PT 2021.3 Logic Pro X 10.7.4 RME BabyFace Pro |
#10
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Re: Import Audio - bit depth changed?
Yes, that's what I'm saying. I regard the gap as visual headroom/separation, and I love it, but I have no clue as to why it is so.
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Studio rig - Pro Tools|HDX 2018.7 | Logic Pro X.4.2 | Avid HD I/O (8x8x8) | 6-core 3.33 Westmere w/24GB RAM | OS 10.12.3 | D-Command ES | Eleven Rack | Vienna Ensemble Pro 5 Mobile rig - Macbook Pro i7 w/16GB RAM | UA Apollo 8p | Pro Tools|HD 2018.3 | Logic Pro X.4.2 | OS 10.12.6 |
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