This IS the Avid L2: Re: [Avid-L2] exporting to quicktime

Wednesday, December 23, 2015

Re: [Avid-L2] exporting to quicktime - very slow

I've been seeing a lot of quirky partially unrendered sections on my safe color limit upper track. Usually there is a dissolve to filler on V1 and if I render the dissolve using the render button on the effects window then the safe color magically becomes rendered in that section. Same is true for some reformats and resize effects. Boris can be quirky but I'm finding that rendering the individual effect from the effects window button fixes some of the stubborn renders that don't want to stick. Also closing the sequence bin and reopening it many times the renders come back online. Just what I've been seeing lately and I'm on V 6,5,4 mostly.

---In avid-l2@yahoogroups.com, <danlist@...> wrote :

Thanks for that info.I will try out using Handbrake vs Turbo.

I do the mixdown these days because I work on hourlong programs and have had problems with effects stubbornly not rendering. (I think this comes up with some Boris effects especially if I am given a sequence from someone else's system.)

I usually break the mixdown into 10 minute sections. An underlying error in an effect will keep a section from showing as rendered which gives me some clues to the location of problems. One can then divide those "unrendered" sections by adding an edit and the part without a problem effect will instantly turn from unrendered to rendered, indicating where the errors are. The old divide and conquer. The little red bar in the timeline shows the error as well but it can be hard to spot in a long sequence with very brief effects.

In the end it often comes down to changing a duration of an effect by a frame to get the render to stick. I think this started to happen somewhere around v7 but it could very well be not an Avid problem but a Boris problem.

On Wed, Dec 23, 2015, at 03:03 AM, ph@... [Avid-L2] wrote:

I used to do something similar with Elgato, I used every version and I even bought their hardware accelerators.
But with time, they did not manage to keep up with the competition. Even with the accelerator, Turbo is slow and the resulting files are bigger and the quality is lower.
I now export same as source to an empty drive (that's pretty fast, faster than mixdown+export for sure) and then I use Handbrake to create my h264 video. It's got several presets, it's easy to tune, and it's pretty fast - it uses more cores than Turbo, and the resting files are smaller and the quality is better. And that software is free!

I use Compressor if I need to make a bluray/DVD, the encoding speed is impressive.
P.

---In Avid-L2@yahoogroups.com, <danlist@...> wrote :

FWIW: In general, I render a continuos upper level track effect like a color effect or visible tc and then export a full rez QT in "same codec". Then put that through Turbo.264 which you can get from Elegato.com (It is also available at the App store but I think it is safer to download the app from Elegato. I once had a problem with the version from the App store that was cured by using one from Elegato directly.) You can continue editing while Turbo compresses and Turbo for H264 is fast though I've never compared it to the Adobe Encoder.