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Insane audio render times!
I’ve been dealing with his for a while now on this documentary I’ve been working on. When I export my timeline which is right around an hour, it takes around 2 HOURS just to render audio previews before it will export! The bulk of my timeline is a single track with no effects at all. Video renders faster than the audio. The only thing unusual about my project is it is largely composed of longish multi-cam sequences – about 30 sequences ranging from 30 mins to 90 mins. It’s appears PP is rendering audio for every bit of my source sequences even though only a few seconds or minutes of each one is actually being used. I don’t know what else could be happening.
I was thinking that since some of the audio was recorded at 44.1K maybe that was a problem and some of the sequences had several tracks of audio so to solve this I went through every sequence and rendered out a stereo mix at 48/16 and deleted the old audio. That seemed to help for a while as with CS6 I was getting a very annoying “rendering required audio files” message every time I hit play until I rendered the audio which as I said takes a really long time. Also I can render this but if I close Premiere and re-open I have to render it all over again. Premiere CC is better about playing back without the render message but it still needs to render for export. I have no idea why it would need to render audio from 48/16 source files.
I have reported this to Adobe but just thought I’d put this here to see if anybody else is having issues. If any audio rendering should ever be required in this day and age it should be extremely fast. This problem has really brought exporting to a crawl for this project.
Robert Brown
Editor/VFX/Colorist – FCP, Smoke, Quantel Pablo, After Effects, 3DS MAX, Premiere Pro -
9 Replies
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That’s right that says 14 hours! But it ends up being around 2 hours to render mostly a single track of audio in a 70 minute timeline. The source files are 48/16 uncompressed audio files. And if I close the project and re-open, it has to do it all over again. Please fix this Adobe this is adding major major time getting out updates to my client.
Robert Brown
Editor/VFX/Colorist – FCP, Smoke, Quantel Pablo, After Effects, 3DS MAX, Premiere Prohttps://vimeo.com/user3987510/videos
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What’s your system setup?
What’s your Media Array?
Do you have your Audio and Video Previews set up correctly? Once you render something, it should not have to be rendered again unless you change it. That’s how it works for us across all our systems, even when we move a project to another system during Post.
Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author, Chef.
HD Post and Production
Biscardi Creative MediaFoul Water Fiery Serpent, an original documentary featuring Sigourney Weaver. US & European distribution by American Public Television
MTWD Entertainment – Developing original content for all media.
“This American Land” – our new PBS Series.
“Science Nation” – Three years and counting of Science for the People. -
Sorry I should have posted the basics. Adobe CC, OSX 10.8.4 on a 12 core Mac Pro with a GTX 570 32GB ram, and BM Studio. My RAID is a 3 disk internal raid with 3 3TB disks in RAID 0. The video renders reload properly. The situation would be better if the audio renders reloaded at least but why it needs to render “audio previews” for such simple audio is beyond me. And as I mentioned I went through quite a bit of trouble to make it as easy on Premiere as possible by replacing all of the 44.1 audio with 48/16 wavs.
Robert Brown
Editor/VFX/Colorist – FCP, Smoke, Quantel Pablo, After Effects, 3DS MAX, Premiere Prohttps://vimeo.com/user3987510/videos
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I am having the EXACT same issue!
Trying to render out a 10second chunk of my timeline for use as VO in a 3d application.
Premiere is showing 21 hours to render the audio before it will then export my little VO segment.
I too am using 30 minutes of multicam footage in my sequence.
Is this a joke?
I am on a Mac Pro 10.8.4, GTX 670, 24GB Ram, 2.4Ghz 8 core, using Adobe Creative Cloud latest updates. 7.0.1 on premiere.
Mac Pro 2 x 2.4Ghz, 16GB RAM, GTX 660
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Seems to be another bug with multicam sequences. Having the same problem. tells me rendering 485 audio previews no matter how much of the timeline I export. Adobe should fix this ASAP.
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I agree. I found an annoying workaround when exporting a section of the timeline: duplicate the sequence and delete all media outside of the section you wish to export. It will only render the audio previews for what’s in the new modified timeline.
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FIXED!
I made a profile just to leave this comment and hopefully spare others who are still suffering from the audio-rendering problem.
Most of the audio clips in my project were 44100 hz, but there was a batch of them that I had unknowingly brought in at 48000. Other posters had suggested that differing properties could be gumming up the renders, so I converted EVERY 48000 audio clip to 44100 in Audition. Voila! Everything worked as expected! I didn’t have to mix-down, flatten, re-import, swap files, or click “match source settings”. I just converted the files, Premiere automatically updated them in my project bins, and suddenly everything was peachy.
At first I converted just one audio clip and tried adjusting the work bar to render it by itself, but Premiere still got stuck. It was only after I made all of the clips match up to 44100 that it worked. Maybe that’s overkill and there’s some way to use some 41000 and some 48000 files in a single project/sequence, but I have no desire to find out. I just brought down the hammer and converted everything.
So if you’re still having problems, hunt through every audio file you have in your project, find the culprits, and turn them into 44100 clips.
Good luck!
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Thank you!
This solved my issue with 6 hour export times with a 6 minute clip!
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BIG THANX for answer, i want add more info about this. it’s not necessary to convert audio sometimes- the error appairs when sample rate in sequence settings and in audio files inside the sequence are different, so you just need to make it same. you can do it in sequence settings OR you can convert files as you told. OR you can delete this files OR make them offline, like i did. in my case, tracks with 48000 sample rate were from camera, and i didn’t need them, cause i recorded sound from ZOOM and used audio from it.
So the main is: SAMPLE RATE IN SEQUENCES AND IN TRACKS MUST BE SAME, or Premiere will convert it while exporting, so it will take much time
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