[Jim Hoyle]

Ok I will try to find the solution. I have different cases I’m trying to solve, but one is that the video mixer doesn’t support a video with straight alpha (or at least I’m told it doesn’t).

On how to blend fill+matte layers in AE perfectly: I will then try to find how to do the same thing as in Photoshop there is Layer Style / Blend If Gray. That kind of functionality should help a lot.

[Jim Hoyle]

What I understand from https://www.provideocoalition.com/alpha-channels-premultiplied-vs-straight/ is that straight is used on a basic RGBA video where there is no black (or other color) for transparent parts, just pure transparency (at whatever opacity). And premultiplied has black (or other color) visible for the parts that are meant to be transparent.

It’s easy to interpret straight RGBA without problems (of black).

But I couldn’t figure out how to get rid of the black on a premultiplied fill (+ matte) layer in AE. It would be nice to know how to do that in AE. Interpretation of the footage doesn’t seem to make any difference in that case.

[Jim Hoyle]

Thank you. How do I make this work perfectly in AE, if I have to? I mean, I can simply make a nice RGBA file and there’s no problem whatsoever (perfect transparency without any black tint). But if I get two files from somewhere, fill with black background and matte, how do I put them in my AE project so that the black doesn’t get any black tint on opaque regions? If I just put the layers on top of each other (matte above), then Luma (for Track Matte), I get that black tint.

[Jim Hoyle]

I am trying to copy settings from another hard drive on Mac. I was able to successfully copy all other relevant settings but I could not find anywhere this information:

Where are the files for Premiere CC & AME CC Export Settings (Presets)? I know that AME’s Import and Export work (and you can even do multiple files at once), but I want to copy the settings files without having to do the export.

I could not find the files by doing a text search for all files in my hard drive, so the settings seem to be in binary format. But perhaps they still can be copied?

[Jim Hoyle]

I agree, very limited audio functionality there. But I need to do very quick checks for the audio, so I need to use the level meter directly in AE.

Perhaps by the other side you mean the volume slider? Yes, it is possible to directly adjust the level for the selected clip. The volume slider is right there next to the level meter. You can choose the scale for the slider in the options. But there seems to be no way to change the level meter scale. Premiere and Audition have nice audio level meters so AE should have the same kind of meter.

[Jim Hoyle]

The queue length is between 0.00 and 0.05. To me, that doesn’t seem like the problem.

The export is extremely slow. I would estimate about 70% slower than my 5 year old system (where the biggest differences were motherboard and processor).

[Jim Hoyle]

Additional information: I couldn’t see any difference by tampering some CPU settings in BIOS. Also the hard drive is definitely not the bottle neck here. Windows 7 Resource Monitor tells me “Adobe QT32 Server.exe” reads only 4MB/sec when exporting, while my drives easily easily allow read/write at least 10 times faster than that.

[Jim Hoyle]

Hi Felix,

Did you get the processors maxed out? Or even some performance gains? I am having a similar problem. On my previous 5 year old system, I don’t think my CPU cores or GPU load were totally maxed out in Premiere Pro CS6. However, it was basically as fast if not faster for basic conversions as my new system is. In my new system the CPU usage is really low. Both when enabling or disabling CUDA in Premiere. When disabling CUDA in Premiere, the CPU usage goes 5% up and GPU load goes to 0%, but overall the speed is pretty much the same and very slow.

I have now
– Asus P9X79 motherboard
– Intel i7-3930K processor
– 64GB mem
– one SSD drive, rest fast hard drives
– PNY Quadro FX 3800 display card

Right now I’m doing a simple conversion from ProRes .mov to VP6 .flv. It takes forever. GPU load is 22% and average CPU cores usage is somewhere around 12%.