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any way to edit 32-bit floating point audio in fcp without rendering?
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I should add that this software is a fee utility but Window only. I can confirm it works in Linux Mint11 using WINE
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[Michael Gissing] “In output file options it offer 16, 24, 32 floating point and 64 floating point. “
Wow. 64-bit floating point?
A lot of visual systems cheat and use half-float for storage, because full 32-bit floating point is usually unnecessary. I’d think that double-float would be absurd overkill.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events -
Yes Walter absurd overkill has been common in audio where bandwidths are low and people imagine all sorts of benefits from a file with dynamic ranges of over 300db.
Hi bit rate floating point is perfectly understandable for audio processing like EQ and mixing many hundreds of tracks together as it enable rounding errors to be very low and discarded when the final 24 bit file is produced. But electronics cannot better 21 bits due to solid state thermal noise so even the 130+ db dynamic range of 24 bit is not reproducible. But people will swear that a 32 bit file sounds better though the same 24 bit D to A.
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[Michael Gissing] “Yes Walter absurd overkill has been common in audio where bandwidths are low and people imagine all sorts of benefits from a file with dynamic ranges of over 300db.”
Can you frame that for me? Decibels are logarithmic, right? 300 dB strikes me as incomprehensibly loud.
[Michael Gissing] “Hi bit rate floating point is perfectly understandable for audio processing like EQ and mixing many hundreds of tracks together as it enable rounding errors to be very low and discarded when the final 24 bit file is produced.”
Totally understand. I’ve saved out image sequences in floating point as intermediates destined for additional processing before final delivery.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events -
Walter, 300db would kill you. It is theoretical dynamic range available through 32 bit floating point processing.
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Very interesting and nothing to discuss.
You know that you are my audio adviser michael 🙂BTW one question Walter.
Do After Effects works in 32FP, or just 32b?
I ask because, on my experience, AE clips any peak over 100%.
rafael -
[Rafael Amador] “Very interesting and nothing to discuss.
You know that you are my audio adviser michael :-)”Indeed. Thanks for the interesting diversion, gents.
[Rafael Amador] “BTW one question Walter.
Do After Effects works in 32FP, or just 32b?
I ask because, on my experience, AE clips any peak over 100%.”It’s 32b FP.
Starting with AE CS3 (when Adobe introduced their MediaCore framework instead of relying on QuickTime for RGB/YCbCr conversion), AE can handle overbrights from certain codecs in 32bpc projects.
If you need to get overbrights back to FCP from AE, render with Trillions of Colors to the AJA 10-bit RGB format and set FCP to process maximum white as super-white.
There are only a handful of output formats that support floating point, and they’re all image formats (so you’d have to use image sequences with an app that supports them): Photoshop, OpenEXR, and TIFF. I’ll also note that OpenEXR only stores half-float (16b FP) by default, though it can be forced to store 32b FP if you choose.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events -
[Walter Soyka] “If you need to get overbrights back to FCP from AE, render with Trillions of Colors to the AJA 10-bit RGB format and set FCP to process maximum white as super-white.”
Walter, thanks for the info, but, won’t ProresHQ keep the overbrights?
In Color is possible.
rafael -
[Rafael Amador] “Walter, thanks for the info, but, won’t ProresHQ keep the overbrights?”
From FCP to AE? Yes. From AE back to FCP? I don’t think it does (but I’m not in front of a Mac right now to check).
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events
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