WOW, just wow. I am having exactly the same mind-boggling render times for audio previews. I am also just incensed that you sit there and let it render (in my case) 1 hour of rendering of 108 audio previews for a 10 min. render of the first part of a 1-hour timeline sequence and ASSUME that it will then save that audio render in the massive preview files (in my case, it ballooned to 83GBs) so you don't have that time-suck happen the very next time you render. But... that proved false and it did exactly the same the very next render.  I just cannot believe this has been going on for so many months!!

My timeline, btw, is 35 other sequences laid out with no effects applied other than video fades. The audio in each sequence is a separate, mastered WAV file. No magic, no multi-cam sequences either.

This is really a drag...

Hi! I have the same problem, and just solved it!

1. Check the sample rate on your audio clip. (Click the clip and check the "Info" tab).

2. Change the sample rate of the sequence you want to render from to match the audio. I changed mine from 48000 to 44100hz.

3. Change the sample rate of the SOURCE SEQUENCE if you are rendering any multicam!!! (This is why so many of us are having multicam issues).

This solved my issue immediately.

if my audio is 48k and 24bit, and my sequence in CC 2014 is 32bit-floating point, does this mean Premiere has to render this 48k/24bit audio and conform it to 32-bit?

Properties for one of my source clips

Source Audio Format: 48000 Hz - 24 bit - Stereo

Project Audio Format: 48000 Hz - 32 bit floating point - Stereo

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!

Just encountered this, I feel like I've found my family in this thread...

Running the new fully specked 5K iMac with R8 Peg Raid 5 drive I was looking at 1 day 17 hours of rendering audio for two tracks of 48kh 16 bit audio on an hour's multi cam edit.

I've never even heard of rendering audio...

SOLUTION!

This is nothing to do with the multi cam, it's the export settings that create this problem.

I exported just my audio tracks and checked Match Sequence settings - took 4 minutes

Dropped this back into the project.

Export w/ vimeo 1080 preset took 27mins

This is unquestionably a problem the should be leading the list of bugs, right behind why PP doesn't run as well as FC on any of the new macs...

PULL UP YOUR SOCKS.

I have the same problem for 2 years now ... I was having the same discussion on other forums because NOTHING ever happens here. I also have a theory that some people from Adobe are posting "solved problems" and getting instant reply for that nonsense that is so far from problem, wile we all wait for much much longer to get some professional info. I'm an video engineer for 15 years...  There are MANY bad things about Adobe, this one is there to stay for now... Only thing you can do is, like the other guy sad, to delete all audio tracks from all sequences (unlink and delete) and use only the track you exported as audio mix-down from project.  I mix all my tracks in Nuendo and importing them back.

Same problem, multi-cam sequence not set to switch audio or any effects. I tried exporting a short part of the sequence, less than a minute - render times for audio - over an hour... solution was to nest the extract, open in new timeline and export - done in a couple of minutes. But, now I want to export the entire one hour long sequence. What to do?

Adobe I have the same issue and am not editing multicam.  If I try to export out a section of a timeline with NO audio, it tries to render ALL clips on the timeline regardless of what is in the windowed portion of the timeline I selected for output.

Please fix this.

I stumbled upon this question while I was having Audio issues myself, I was editing a multicam sequence at first but switched because I was having some audio sync issues.

My Sequence was about 50 min in total and in the past had only taken a few min to export on my souped up Mac Pro. Later on after my last export, I discovered that my audio was out of sync somehow AGAIN so I had to go back through and Match Frame on all the clips. When finishing I tried to export the Sequence to find that it was going to take over 8 hours to render Audio Previews. What I did was select all (audio and Video) and switch it to Multicam and Flatten Audio. After this my audio render for 280 clips was less then 2 min.

Hope this helps.

Nick

I was just having this same issue. I had to slow down one audio clip to match up to another, multi-clipped them together and for some reason it wanted to take 16 hours to do a 12 minute clip. I'd removed the slowed down clip and it rendered fine.

I saw a staff member suggest flattening the multi-clip, so I tried that and I'm at a shorter rendering time than I had before!

Thanks!

-Joe