Re-rendering Audio

So hears the deal. Im having an issue with audio renders playing in a spot, rather than the current audio. Example: I put a piece of audio on the timeline, render it, than move the audio. When It try and replay, the audio of the clip is not correct. Sometimes I hear remnants of where the audio was previous located. I tried turing off the clip then turing it back on. Only seems to work with video. Deleting my render files seems a little bit much also. Any simpler ways to fix?

Why are you having to render the audio?
It needs to be 48 Khz 16 bit. If its a different sample rate, you need to convert it first.
44.1 Khz is for CDs. 48 K is for digital video.

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Final Cut Express occasionally renders audio "out of order"

I'm running into a very occasional problem, which is just rare and random enough to not be recreatable on demand, and so is proving difficult to troubleshoot.
In a nutshell, sometimes - not very often - when I render an audio stream it will report an estimate of 6 hours or more for something even as small as a 1-second transition. This is not a composite or layered video or audio by any means, just a standard cross-disolve/cross-fade (+3) between two adjacent clips. When this type of extreme estimate occurs, I may find afterward that rendered audio in the sequence has been moved around, sort of like a shell game. Usually this anomaly only happens over a minute or less of the project. Trying to describe this, a portion of the rendered audio from one part of the timeline will replace a portion of rendered audio elsewhere -- as if some audio render segments have gotten linked out-of-order. If memory serves, the displaced audio so far has always appeared earlier in the timeline than it should. The replaced audio just doesn't seem to appear anywhere. So far, if I remove the associated audio render files and re-render, it fixes the problem, but I'm trying to sort out what is causing the behaviour in the first place so that I can take steps to keep it from happening at all. It raises havoc with trying to meet deadlines when I'm stuck re-rendering sometimes entire segments....
For some details about the environment:
     System is a Mac Book Pro, 2.4GHz Intel core duo, 4GB RAM, OSX 10.5.8.
     I'm using FCE4, importing SD clips for TV production from Sony cameras (sorry, I'm not part of the camera crew, and I can't recall the exact model number of their cameras - they are all the same model though, configured the same, so no known variables from that end).
     The cameras record standard-def MPG (Mpeg layer 2, so yes I convert them before importing into FCE), I convert them using the ffmpeg library. I tried FFMPEGX, but I find I have far more control over video/audio parameters and combinations with the command-line version. The parameters I use result in a Quicktime (.mov) file with these parameters: 16-bit integer (little-endian), stereo, 48kHz, DV 720x480 (640x480), Millions (of colors). FCE is generally quite happy with these parameters, and does not require immediate rendering of the audio or video - unless plugins are applied of course. As far as plugs, I generally only use the built-in FCE plugs for comp/lim and parametric EQ. If I have to get much more detailed than that, I'll go to Digital Performer (read on).
     In some cases the audio of the original clips is in quite a bad state, and requires far more detailed restoration than FCE can provide. As I am primarily an audio engineer, I rely on Digital Performer and friends for audio restoration, exporting from there a new clip, usually duplicating the original video (self-contained), though sometimes I do let DP export a reference movie. Final Cut doesn't seem to have any trouble with the .mov files exported from DP either way, and this anomaly doesn't seem to care whether the clips involved were processed by DP or not.
     Disk space, memory, and CPU load are all well within acceptable ranges; and with my previous years of experience as a systems admin, I am well aware of the system impact and ramifications of using internal vs external disks, memory allocation, disk filesystem operating overhead, etc.
As I've mentioned, this is not a show-stopper, I have a work-around to correct it when it happens. It's just a bit of a bugger *when* it happens, and I really wish I could work out the root cause of it, so that I can take steps to avoid the problem in the first place. Any suggestions/insight/help would be greatly appreciated, thank you! :-)

Thank you for your response.
Grr. I had a nice response ready to post, and apparently the system logged me out and wouldn't let me log in while keeping the text. I'll condense it a bit, since I've stumbled across some additional points to ponder while typing.
The clip:
And the sequence:
Yes, I see that the clip is 16-bit integer and the sequence supports 32-bit float, but this should not pose a problem since modern digital audio processing up-converts smaller sample formats to larger ones on the fly for processing, and exports whatever format is desired at the end. If this *was* the problem, I should always be off by a ratio of 2:1 on all audio data, but I'm not.
Additional notes: the system generally has Firewire, USB, and network mounts (all required for my work), and the internal drive (which *is* 7200RPM) is partitioned into a system and a user area to keep audio and video projects out of the system's disk space. Most main clips for a project are placed on the internal user space for speed, externals hold auxilliary files (stills, adverts, livetype, etc).
It was at this point in my previous typing that I began to realise that the anomaly seems to begin in sync with some random livetype object. It then extends a bit past the livetype object, so it's not locked to that object; and multiple instances of the same livetype object DO NOT result in multiple instances of the audio anomaly; it only hits a single instance; and again it usually cleans up when the audio render files are removed and re-processed.
This leads me to wonder about a possible odd combination of events/processes on the system, and whether or not FCE handles livetype natively or requires a livetype helper (i.e., another process stuffed into the system table). This sort of external influence would be a transient sort of event, and therefore could easily be out of the way by the time second render attempt is begun - resulting in the "fix" by removing and re-generating audio render files.
It makes sense to me, but it's still hypothesis and supposition at this point.

Rendering audio of some clips distorted

I have an older project from last year imported by an older version of iMovie. I imported those clips into FCE and things are looking fine. It had to render the audio and my sequence was complete..., until I spot checked some sections of it.
Two of the longer clips (about 4 minutes each) start off fine, but about 2-3 minutes into the clip the audio is scrambled. I can still hear the original audio, but other audio from the same clip is being superimposed at repeating intervals with that changing every few seconds. Regardless, the audio track is destroyed.
If I go back to the original source clip and play in viewer, it's perfect from end to end. The only way I could get around one of them was to break it up into sub-clips and it seemed to work OK then. Haven't gotten to the other clip yet that's messed up.
Is there a known problem with rendering audio in FCE? Source clips were from a DV camera imported via firewire.

Well I think I have found the solution!
I have previously tried deleting the audio render folder (documents:final cut express documents: audio render files:your project:) with some success. Final Cut Express will ask to reconnect these files, just ignore and click 'continue'. However, this did not solve the problem for my current project.
This time I tried deleting not only all of the audio render files, but also the waveform cache files (documents:final cut express documents: waveform cache files:). This folder contains files from ALL of your projects, so only delete the files whose names begin with the names of audio or video capture files from the current project. ie. I only deleted files called 'Assembly00001kgwv', 'Assembly00002kgwv', because when I captured from my camera, I named the capture files 'Assembly'.
Once you have deleted all of these waveform cache and audio render files (it will not ask to reconnect with the cache files), you should be able to re-render your entire project with no problem.
I have re-rendered an hour and twenty minutes and after briefly looking over the whole thing, there seems to be no problem. I do not know what the problem was, and I am not an expert so I won't take any guesses, but the solution seems to work for me, so I hope that helps!

FCE2 RENDERED Audio has chunks missing (Not an Audio Mixdown problem)

Hi,
I have been using FC for a couple of years but I have been experiancing audio problems that that baffle me in the last few days(no sw/hw changes).
To cut a long story short, I have found the RENDERED* audio is missing large chunks of audio(although the sequence timeline shows the waveform) so it cuts out when playing back in the Canvas. The file imported plays OK in the Viewer & the source file(s) plays OK in Quicktime & in iMovie.
* in the "Audio Render Files"/project folder
This has happend using imported MP3 & DV files.
I have tried Audio Mixdown but it didn't help.
Any suggestions as to what the cause/solution might be ???
Powerbook G4 17, 1 GHz, 1024KB Ram Mac OS X (10.3.9) Lots of Firewire drives

Hi(Bonjour)
Is there any song purchased on iTune in your project?.
If so, you can't use this file in this format, because this file is protected with AAC-DRM (digital rights management).
You can export this song to a CD in aiff format (audio CD) in iTune, and import this newly converted file into FCE after copying it on your hard drive.
If you song is in MP3, convert it to aiff from Quicktime player Pro.
FCE "like" aiff file format for sound.
Michel Boissonneault

Help!! idvd freezing when rendering audio

PLEASE..I need help!! I make a movie for my students at the end of the school year. I put together a movie in imovie and then sent it to idvd. When I finished with the idvd part and went to burn it, my idvd would stop responding after about an hour when it came to the final part when rendering the audio. I find I have to force quit the program and start over. I've tried it 4 times and it happens every time in the same spot. I never had this happen before. Thanks for any help you can give me!!

Like I said!
This question is frequently asked!
iDVD is probably not 'hanging'. Disregard any messages that iDVD is not responding. It is. Do not force quit.
Encoding audio is the slowest part of rendering, and can take many hours. Great patience, even an intermittent alternative hobby, is called for.
Make sure no other application is running, make sure you have not set the hard disk to go to sleep and that the screen saver will not come on. Leave it overnight, or have a 36 hole game of golf.
Sooner or later iDVD will finish!

Premiere CS4 Crashes when rendering audio

This is the first time I have encountered this issue. I am working on a nested 4 camera sequence and have performed a multicamera edit. I have been cutting the multicamera timeline for a couple of weeks now and today I had a issue where I was rendering the audio on the multicamera timeline and premiere crashed. The computer crashes every time I render the audio or shortly afterwards. If it makes it through the render the program crashes soon after when I am scrubbing through the audio. No specific error just "Premiere Pro has encountered and error and needs to close" I've tried deleting the rendered files then recreating them. I've tried replacing the audio layer 1 from the source sequence with a new .wav then rendering the audio in the multicamera sequence but neither has worked. I also tried starting a new project and importing the multicamera project into the new project I had just created but I still could not render the audio. Now I'm wondering if one of my clips within the project is causing a problem but I don't know how to go about testing this theory other than deleting each audio asset one at a time from audio layer 1 of the source sequence timeline, then attempt to render my nested multicamera sequence.
Anyone ever have this problem before? It's driving me crazy!

Thanks, that is a good option. I was able to find and remove two clips on the raw footage timeline that seemed to be causing rendering problems. I have not had any crashes since. If I do, I will use your advice.

Trouble rendering audio in Final Cut Pro HD

Hello everyone, I am a student working on a video for school and currently I'm running into a problem which with my fairly limited experience with Final Cut, I am unable to solve. For some reason the audio in my timeline isn't rendering. When I press play it gives me the beeping sound that tells me it's unrendered. But when I go to render it, it briefly flashes a dialog box but the audio still remains unrendered. I'm not certain what exactly the program is or isn't doing or what's causing it to behave this way, if anyone has any suggestions on how to fix it I would be greatly appreciative.
G5 Mac OS X (10.4.9)

Trash your preferences for FCP, and give it another go... recheck the settings above after you restart FCP.
http://fcprescue.andersholck.com/ will help with the preferences trashing...
Jerry

When exporting, PP renders audio that wont be in the export.

Hello folks.
For my project I basically have a giant, like 10h long timeline filled with audio, that as time goes by becomes shorter and shorter.
With that (and some video footage I add to it) I have export-videos of several minutes of length.
The thing that disturbs me is that when I start exporting, PP renders all of the audio from the timeline, even if its not going to be in the export.
More visually:
Say I load 5min of music and 5min of video into PP and then I export it, it needs e.g. 5min
Say I then load 10h of music and 10h of video into PP and just select the first 5minutes of that huge thing to export, it needs 10h instead of 5min.
How to deactivate that? I know its useful to pre-render the audio like that if I was to work with all of the music during one PP session.
Bbut in my case just little amounts of video footage goes into PP per day, so it is just disturbing to render all that audio again and again...

Hi Tavados,
tavados wrote:
How to deactivate that? I know its useful to pre-render the audio like that if I was to work with all of the music during one PP session.
Bbut in my case just little amounts of video footage goes into PP per day, so it is just disturbing to render all that audio again and again...
That's a little strange. What you might try is to make sure that the sample rate of your clips match the sample rate of your sequence settings. I hope that helps you.
Thanks,
Kevin

Rendering audio files in Garageband for uploading to website

We edited a video in IMovie 09: We imported it to Garageband and added some MP3's; We exported to disk; We burned a nice DVD in Idvd; The completed file shows up in Soundtrack Pro; Here's the problem. When we uploaded the final .mov file to a website the mp3's we added in Garageband never made it. Only the original audio track associated with the video clip in Imovie got uploaded. It's my understanding that the audio tracks added in Garageband don't get rendered into one audio track. When uploading to an FTP website only, one audio track will upload. ANybody have a solution to this?

Big problem, big big problem. It's a glitch in the program and a bad one. iWeb is obviously capable of resizing photos in a simple drag and drop step, but for some unknown reason the full sized (in my case 6 to ten megapixel) images get uploaded with the blog. RSS subscribers get free access to any of these photos that were dragged into the blog page. This is a very bad thing if you plan on selling photo prints of the same images-- you just gave away all your inventory. I'm hoping the same isn't true of my actual gallery pages.
Nobody in the photo business makes their full digital files available free to the public, but iWeb is doing this by default, and not informing the user. Answers amounting to "resize your photos first" are correct, but apple really needs to fix this issue in iWeb. Also there is no "default" reason to upload huge photo files when they are simply intended to be viewed (quite small actually) on the blog page. A jpeg properly sized for web viewing takes about one tenth of the space of a full sized file. I'm decidedly not wanting to do "photocasting" and that should be a very deliberate and purposeful step, not a default.
The other blog photo glitch is that it resizes and crops your photos, when it should simply resize them like it does for the thumbnail view.
It's reasonable to assume that drag and drop resizing does not store an invisible full sized photo file and then upload it without a warning, reasonable, but currently not true.
I'm hoping that if I go into my blog in iweb and delete the photos that they'll be permanently removed from the server. I know you want to sell me photo prints, Apple, but this is not the way to gain a customer!

Crash when rendering audio

I'm using CS6 on a 2011 Sandybridge MacBook Pro 15". I have an ongoing problem that when I render audio, Premiere crashes. It starts to render about a third of it and then just freezes and the feared 'spinning wheel of death' as it were appears. I can work around it sometimes by turning off 'render audio' in the general tab in preferences but sometimes this means I can't hear all audio (ie that can't be played back without rendering). The problem seems to occur particularly with .r3d red media or .h264 mov files (eg from a Canon 5D/60D). Does anyone know how to fix this?
In preferences > audio hardware, I have buffer size set to 512 and have selected 'built in audio output' as the default device. Could this be a CUDA problem?

If I were you, I'd trick that machine out with RAM. 2GB is NOTHING in AE-Land. Heck, the operating system's using about half of your memory.
Other things to do:
If you're using Open GL to accelerate renders, turn it off.
If you're trying to use multiprocessing, turn it off and LEAVE it off. A 32-bit machine can only see 4GB RAM, and that's nowhere near enough to use multiprocessing.
And since we're talking about AE 9, it could be the footage, too. I'm pretty sure wmv files qualify as problematic, so I'm going to paste in an answer I give a lot on the Creative COW:
Dave's Stock Answer #1:
If the footage you imported into AE is any kind of the following -- footage in an HDV acquisition codec, MPEG1, MPEG2, AVCHD, mp4, mts, m2t, H.261 or H.264 -- you need to convert it to a different codec.
These kinds of footage use temporal, or interframe compression. They have keyframes at regular intervals, containing complete frame information. However, the frames in between do NOT have complete information. Interframe codecs toss out duplicated information.
In order to maintain peak rendering efficiency, AE needs complete information for each and every frame. But because these kinds of footage contain only partial information, AE freaks out, resulting in a wide variety of problems.
I'm a Mac guy, so I like to convert to Quicktime movies in the Animation or PNG codecs; both are lossless. I'll use Apple's Compressor, Adobe Media Encoder or Quicktime Pro to do it.
How come things worked okay up until now? You got lucky.

Premier freezes on export after rendering audio files

I'm having issues exporting projects out of premier today.
System specs:
6 core mac pro trashcan
D500s
32gb ram
500gb ssd
All media is on a lacie thunderbolt raid0 drive
Currently working on the simplest timeline you can imagine. One pro res proxy clip on a pro res proxy timeline exporting with matched sequence settings. No effects or plug ins.
When I export it renders the audio files and then stops at 0.01%. When I hit cancel premier crashes
I've also tried rendering in the timeline and the same thing happens. I've tried a few different projects with different media and the same thing happens.
Talked to support on chat. The guy trashed my preferences and deleted/moved all my plug ins (thanks - didn't let me know he was doing that). In the end I had a deadline to meet so cancelled the chat, unplugged my drive, plugged it into my macbook pro and was able to export as normal from there. Wanted to go back on chat now but its unavailable.
My mac pro has been exporting all week just fine. The only thing I've done in the last few days is install Osiris LUTS. I was still able to export another project after that as well. Right now I'm guessing that I'll need to do a full re-install of adobe CC, but having to do this in the middle of projects isn't really acceptable. Perhaps there's another solution?
Oh and by the way I'm on CC2014 v8.1. I haven't run the latest updates yet. As I said - in the middle of several projects and up until today everything was running great (apart from a couple of crashes a week)
Thanks for any help!

Found the issue. Was just about to re-install everything when I noticed some quicktime files on my desktop not displaying as normal. Tried to play them and sure enough wouldn't open (quicktime wanted to convert them). So I downloaded the latest apple pro apps and now I'm all good exporting.
I remembered last night I downloaded some youtube ripper software. I'm guessing that messed with my codecs somewhere down the line.

Rendering + Audio Problem

I just rendered the below project, closed FCP X, ejected the hard drive, came back a little while later, re-connected my drive, started FCP X and get this
FCP NEEDS TO RENDERING AGAIN........????
Also I've noticed after I close and re-open a project, the audio at the end decide to extend itself..?

Tammy,
If we've dropped a bit of time for this part of the edit, you now have time for more fun aspects of it.
While I will casually monitor my Meters, I spend much more time with a good set of noise-canceling headphones, listening critically. The Meters are basically to point up potential issues. With Audio, if you have not invested in a really good set of headphones, do yourself a big favor, and sneak 'em into the budget.
Glad that you got things toned down.
Now, let's go on to Lesson 02 - The Audio Mixer. Unlike adding Keyframes to a Clip, when your cutting is done, you can apply Track Keyframes to attenuate (also Pan, etc.) you Audio Tracks to suit. One would just change the Send in that Track to Write, or Touch, and "ride the gain" with the slider, as is required. I probably do most of my Audio editing there, than addressing the individual Clips. First thing that I have done is cut back a bit on the frequency of the Track Keyframes in Edit>Preferences, as I find the default to add too many (and you can go in and adjust these by hand, if you need to "smooth" things out a bit.). One caution: do this when you are satisfied with the cuts, Clip placement, etc., as these Keyframes are applied to the Track. If you were to remove a Clip, and replace it, those Keyframes would apply to that new Clip, whether you want them to, or not. This trips some folk up, if they do the Audio Mixer thing too soon in the editing. Wait until you are "in love" with your Timeline otherwise. It's like scoring a Project. One does that as about the very last step, or much work will be repeated, and that is not fun.
Good luck,
Hunt

FCP 7 quit rendering audio selection. Render all audio continues to work

FCP 7 simply quit performing audio render. One minute it worked and the next it didn't (either with keyboard command or dropdown menu). I can still get audio rendered by using the render all audio drop down menu but it's much more time consuming to do the dropdown menu.
Any suggestions would be greatly appreciated. Thanks.

Try trashing your preferences using this.
http://www.digitalrebellion.com/prefman/
DM

Final Cut: My rendered audio disappears every time

Hi all,
I render audio (an imported music track), then video and music are okay. However, when I save everything and continue work later, the audio has to be rendered again, each time. What can I do? I suspect a problem with recording or saving paths.
Thanks, Paul from Toulouse, France

casteraman wrote:
I seem to get it working - all the file formats work. I fiddled with the systems- and preference settings and cannot trace what the helpful change was. E.g. I set the audio quality to high (was low), but this should normally not influence the rendering path...Thanks anyway! Paul
When you set the audio to high it will force the system to render anything it cannot in the low setting.
I suspect FCE was converting the odd files on the fly and not actually creating render files.
I like to edit in low and switch to high just prior to exporting or whatever. The switch to high will show up any audio problems.
Look for the colour of the render bars in the audio tracks, that will tell it all
Al

After Effects CS6 renders audio and video separately. Please help!

Trying to render a finished video so that I can upload it to Youtube, but having extreme rendering difficulties. The only way my audio and video are combined in one file is when I export the project as a lossless AVI. Best quality for sure, but the size is MUCH too massive. Any other format I try always separates the audio and video. I have no idea why. Any help or suggestions are greatly appreciated. Thanks!

Sure thing, here you go. If there is anything anyone else needs to see please let me know.

Re-rendering Audio

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