Audio dropping out during playback in timeline

Hey everyone,
I've dug through these forums and unless I just completely overlooked it I have not found a solution to this issue. I've listed my setup below and then have stated the issue I'm experiencing.
27-inch, Mid 2011 iMac
3.4 GHz Intel Core i7
16GB 1333 MHz DDR3
AMD Radeon HD 6970 1024MB
Running Mac OS X Lion 10.7.5 (11G63)
Currently working off of a portable 1TB G-Technology G-DRIVE via FW800.
Working in Premiere Pro CS6 Version 6.0.2
Editing in a sequence with settings:
1920 x 1080 23.976fps (also tried in a 29.97fps timeline with same issue)
Working with footage that is 23.98fps
Working with a combination of ProRes 422 (LT) and native H.264 Quicktime files strait from a 5D Mark 3.
The issue I'm having is during playback the audio will competely drop out. The video will continue playing on just fine but the audio drops completely out. All audio levels drop as well in the audio mixer meters so it truly is losing all communication with my audio layers in the timeline.
I read in other forums to go into Finder and delete out the .caf files, re open Premiere Pro, wait for them to be recreated then carry on. I tried this approach with no luck. Deleting the .caf did not change anything. Audio is still dropping out as I try to play through my timeline. The only way to get the audio back is to pause then press play again. I have 5 total channels of audio with only 2 of those channel active.
Any ideas on what is happening would be greatly appreciated. This is incredibly frustrating have to export out a video just to be able to watch it through.

Having this annoying problem also. Using the Space Bar to play timeline it takes pressing and holding to a count of three or trying press play three time in a row using the space bar to get ungarbled audio, or any audio at all in a normal uncomplicated sequence on the timeline.
Really annoying. Audio used to be so simple and untaxing to a sequence.
Adobe Premiere Pro CC 2014.1 release
8.1.0(81) Build
OSX 10.8.4
40 GB RAM
G Raid G Speed Q w/ ESATA connection
1920x1080 29.97 Progressive Scan Sequence
48Khz
Apple PRoRes 422
12 channels of audio/ only 2 of 12 monitored.
1/2 resolution on Program monitor
ADOBE.....WISH THERE WAS A SOLUTION?

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Dropped frames during playback from timeline...help asap!

I'm running Final Cut Express 4.0.1 (I've checked and installed latest updates) on a 24" Intel iMac (2.66 GHz Intel Core 2 Duo, 4GB ram) which I purchased on August 2009.
Before I purchased my new iMac I would use FCE on my 15" MacBook Pro (purchased April '08, similar specs to my iMac) and it would work just fine.
Now here's the problem with running it on the iMac...Everytime I playback any video from the timeline, it would immediately drop frames in less than 3 seconds (even without any effects or filters) and reveal an error window:
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If this occurs frequently, try:
-Turning off Unlimited RT
-Lowering your compression data rate
-etc..."
However the video in the "Viewer" window plays back videos just fine. I've tried changing scratch disks from an external drive to the internal HDD (both of which are more than 70% free) to no avail. I used to always use Unlimited RT without a problem when I used FCE on my MacBookPro with an external drive. Am I missing a setting that I used with my MacBookPro? I've even opened FCE projects I made using my MBP, and the iMac drops the frames when I play them back.

Here are some screen caps of the item info windows:
http://img263.imageshack.us/img263/1696/screenshot20100608at115.png
http://img43.imageshack.us/img43/1696/screenshot20100608at115.png
I'm using an external HD, an Iomega 1.5TB - Mac OS Extended (Journaled). However it's USB and not firewire (which again wasn't an issue with my MBP). I've also switched to the iMac hard drive and the problem persists.
Let me know of any other info you'd like me to pull up for you.

Audio drops out during editing - but fine when shared as a final video

On my most current project, the audio track (from the recorded video interview) started dropping out/stuttering. When project is rendered, the audio is fine, but this is annoying while trying to edit. Any thoughts? PE 8 recording in HD.

>recording in HD
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037?tstart=0
What is a CODEC... a Primer http://forums.adobe.com/thread/546811?tstart=0
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037?tstart=0
Report back with the codec details of your file, use the programs below
For PC http://www.headbands.com/gspot/ or http://mediainfo.sourceforge.net/en
For Mac http://mediainfo.massanti.com/
Once you know exactly what it is you are editing, report back with that information... and your project setting, and if there is a red line above the video in the timeline, which indicates a mismatch between video and project

Airplay dropping out during music playback

Since all the software updates I have developed a very annoying problem between iTunes 10.5 on my Mac Mini (Snow Leopard) and my ATV2.
If I am streaming from iTunes to the ATV2 using airplay I will get audio dropping out during playback. It happens intermittently and randomly. The song keeps playing on iTunes, but ATV2 isn't getting the audio.
If I am pulling music or stored movies from iTunes the other way around (i.e. using the ATV2 menu) there is no problem. Everything works as expected, but of course I get no iTunes DJ and no crossfade between songs.
I did notice that when this problem happens the wireless light on my router stops flashing, so I am assuming that iTunes is not buffering it's airplay, or perhaps there is some kind of a network error. At first I thought it might be too many devices active on the router, but this is never more than 4 items at once, including the ATV2.
Anyone else with a similar problem?

I think you're correct that Airplay doesn't buffer ahead, if it does it's a tiny amount, whereas the whole song can buffer when you pull/play direct on AppleTV.
If you think about it too because you're applying effects in iTunes, crossfades etc these have to be processed not just played and I think itunes does this in real time rather than processing ahead of time in case you say adjust eq settings/volume etc. Also, the Airport/Airplay devices playing 'live' effectively allows multiroom playback with a degree of synchronisation.
The cutting out is to me a sign that data is not getting across the network as robustly now for some reason - I used to have terrible problems with cutting out streaming to an older Airport Express over wi-fi due to interefrence locally from microwaves, cordless landline phones etc. Of course something may have changed given all the software updates but you'd expect the stuttering in iTunes if it was a processing bug. If many others see the same could still be software related,but unless that's the case I'd say it's almost certainly the network. ANyrthing changed? New competing networks from neighbours?

Audio visible in timeline but drops out on playback halfway through clip

I've been using Premiere Pro for a few years now and this has never happened to me before.
I am in the middle of putting together some long clips - anywhere from 3 minutes to 20 minutes long - and all of them worked fine except for the one shown here.
At the current edit point the audio drops out on playback. As you can see from the timeline, the audio is there. The rest of the clip prior to this point plays fine. Every other clip in the project plays fine. This particular clip loses its audio after 10:18 despite the fact that audio levels can quite clearly be seen in the timeline.
I am at a total loss. I've tried rendering, closing/reopening, restarting, re-importing ... everything. I hope someone else has a better idea.

Had the same problem and as solution used nero movie maker, where with sound was everything allright, and exported only sound. When exported a WMA format - premiere showed the same bug again, but when exported WAV format - premiere worked normally. It's not a 100% solution, becouse I had a 5.1 sound, that was converted into stereo sound.
Similary did with a videoclip, that could not import in premiere (premiere crashed) - via nero movie maker made ir from .mts to wmv with a little loss of quality.
Camera: Panasonic TM700
Software: Premiere CS4
File type: .MTS
It is a shame to such a expensive software
Update: these days I faced with this strange bug again and I had an idea to test whether this sound loss affects also exported media. I made a 20 seconds experimental clip and noticed, that there with sound is everything allright. So this sound loss is only in editing process and does not affect exported material.
Message was edited by: IcemanLV

Preview Files Suddenly Go Missing, Render Entire Work Area Crashes Premiere, Audio Drops Out

I opened a Premiere Pro project I was working on earlier today and it said it couldn't find the preview files, searching my system found that the files didn't exist.
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The three problems above started happening all at the same time, was working through a color grade using Red Giant software when it started happening.
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I can provide more info soon or if people want more info pls let me know, I'm very tired and I need to get this issue resolved for tomorrow, in the mean time hopefully someone can point out a general fix for these errors or knows a few workarounds. Tried reinstalling PP and AE, no luck.
Computer is a Windows 7, 64-bit. i7 950, 12gb RAM, GeForce GTX 650, programs installed on a separate internal HDD, media files on another internal HDD. But these same issues (minus the audio dropouts) was also cropping up on a core 2 duo 13'' macbook pro.
Regards,
Zach

Hi Arjun, thank you for your help.
Though that didn't work either. At least the timeline will playback but as soon as I try to render my work region or export any video Premiere freezes.
I removed all dynamic linked files as well, that didn't seem to change anything.
Something I noticed -- the render bar on the timeline that is usually yellow for edited clips that have no FX on them is all red, nothing is yellow (or green). This is a 4 minute long edit on a music video, nothing extraordinary.
I tried creating a new project and dragging a few clips in and editing them, everything went normally and I could render and export the clips. Just any rendering done on any version of this music video edit I'm working on crashes the program.
Also recently had a problem where I opened the music video project and the song that I imported (.mp3) all of a sudden has no waveform or sound coming from it. Dragging it back into the project doesn't fix it either. Workaround was using a .wav copy of the song.
Zach

Audio Drops Out Randomly

I'm having a problem where audio randomly drops out during playback of videos in the viewer. I'll be watching a video clip, and then out of nowhere the audio will just stop. Sometimes if I click stop and play again, the audio returns. Sometimes the audio never comes back until I restart the program even if I change video clips. I never have this problem when viewing sequences though. It only happens when I'm previewing clips before adding them to my sequence so when it gets really bad I end up adding all the potential video clips to the sequence before trimming and arranging them just so I can hear the sound.
This consistently happens to me on my Macbook Pro and my Windows 8 PC both running the most up-to-date version of Premiere Pro CS6. All of the video content I'm working with is in AVCHD format. The Macbook is a 2008 pre-unibody model with OS 10.8, 4 GB RAM, a Intel Core 2 Duo 2.2 GHz processor, and an NVidia 128 MB video card. The PC is running Windows 8 with 16 GB RAM, a 2 GB video card, and an Intel I7 processor with 3.4 GHz.

In the Premiere Pro help file it states:
Conforming audio
Premiere Pro processes each audio channel, including audio channels in video clips, as 32-bit floating-point data at the sequence sample rate. This processing assures maximum editing performance and audio quality. Premiere Pro conforms certain types of audio to match the 32-bit format and the sequence sample rate. If conforming is required, it is done when a file is imported into a project for the first time. Conforming takes some time and disk space. A progress bar appears at the lower right of the Premiere Pro window when conforming begins. Premiere Pro saves conformed audio in CFA audio preview files. You can determine where to save these audio preview files by specifying a Scratch Disk location for Audio Previews in the Project Settings dialog box.
You can work with audio files, even applying effects to them, before they are fully conformed. However, you can preview only the parts of the files that have been conformed. You cannot hear unconformed sections on playback.
These rules determine which types of audio get conformed:
See: http://help.adobe.com/en_US/premierepro/cs/using/WS9FAF538A-BEE3-4925-B45A-DF8BE7F2A2E5.ht ml#WS00AF9E2E-9F99-4aff-8961-1E2F30E9ECCC
It doesn't hurt to look at the Prmiere Pro help files once in a while to learn various processes, etc.

FCP X Audio Drop-Out or Audio Gap on Timeline.

Hello fellow FCPX-ers.
I am posting this thread on a few forums as I have encountered a very weird issue taking place.
Trying to figure out if the issue I am encountering is a bug/glitch or a technical issue.
This has consistently occurred in three different projects now all shot at different times. The audio has been fine on the camera during the recording process and has been fine in it’s RAW NATIVE SOURCE.
THE ISSUE
For some reason my audio keeps dropping out on my timeline and it is creating audio skips/clicks making it impossible to export proper audio or fix the gaps on the timeline.
Screenshots are attached to this thread for a visualization example.
I have followed the process and finished troubleshooting with it all the way to FCP X.
Thus, I am able to pinpoint that whatever is going on is a FCP X issue
The audio is fine until it reaches the FCP X timeline.
I have tested the RAW FILE in VLC player and there is no audio drop-outs
I have also tested the video file in Sony Vegas Video and the audio is fine.
The Digital Workflow:
It start’s off as a .M2T file which is then run through Clipwrap 2.6.4 as a (rewrap as source format) and then eventually makes it into FCP X and is placed on the appropriate timeline.
I have had this same error for three different projects now. It has occurred both when using the NATIVE VIDEO FORMAT and when trying to use the (rewrap 1920 x 1080 format)
Thanks in advance for your time and help.
reggie-

You don't say what your audio settings are for Clipwrap. If you're exporting mp3/AAC or other player format, then FCPX is probably having problems dealing with those formats.
You might try selecting your audio (or related video) tracks and rendering (Control-R) and see if that fixes the dropouts. You can also try selecting the clips in the Event Browser, right-clicking and selecting Transcode from the popup (if the options are available.)
The "native" FCPX audio format is WAV( ! ) AIF/AIFF and CAF will work just as well. The transcode options should be PCM (or LPCM,) 24 bits/sample and 48kHz sample rate (or "better" - but the sample rate should match your project settings.) If you have control over these options in Clipwrap, you should set them accordingly.

Video playback slow and audio drop out after render

Hi
I have downloaded a trial version of After Effects from the cc,
Problem is everytime I render ou,t the video playback is slow and the audio drops out
This happens with AVI or Quicktime files.
Using a Intel i5 quad core, 8 gig of ram 250 gig ssd.laptop
Render/export in Premire pro is fine.
Can any one help.
Regards Phil Green
Blue Room Media.

It sounds like you might be hitting the space bar in hopes of getting real time playback. Sorry, but AE doesn't work like that, because it does totally different things from an editing application like Premiere.
And if you've downloaded the tryout version, you really ought to learn how AE works... and a short description is "it doesn't work intuitively". You can frustrate yourself in a hurry.
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Getting started with After Effects (CS4, CS5, CS5.5, CS6, & CC) | After Effects region of interest

Audio Drops Out on Long Clip: Win 7 - AVCHD - CS4 (PP4.1)

I've just brought up a cranking new Win 7 64-bit machine today and thus far almost everything has flowed swimmingly. I can work with AVCHD files easily, can run to AE and PS, etc. All great.
Then this evening I tried a clip that was significantly longer than the otehrs I'd been trying. It's about 10 minutes in a single take. After a couple of minutes, the audio just stops playing. The timeline display shows audio information there -- but it just stops playing any sound, even as the picture continues.
I thought: maybe it's building a preview. So I let it sit for a couple of minutes, then hit play -- same behavior, audio vanishes at the same point in the clip.
Next, I broke out NeoScene and copied the same clip to Cineform. Loaded up the copied file in PP CS4 and found that it played without any issues. All picture, all audio.
Any suggestions, other than converting everything to Cineform (I bought this machine so I wouldn''t have to!!)?
I shot that clip on a Canon HF S11 @ "PF30" -- which is still stored at 60i in the AVCHD file. Could this be the culprit? (And if so, what to do about it?)
Thanks,
kb

My setup is as follows:
Premiere: Pro CS4 updated to current.
Computer: Quad core (HPM9060N tricked out with 8G RAM, 1.5T primary disc, Win7 Ultimate 64-bit)
Cameras: Sony HDR-SR5 (Hard-drive early AVCHD c. 2007. This camera is basically retired but I am still doing post on some files created with this camera - the new one just came out Mar. 7...)
Sony HDR-CX550V (absolute jewel of a camera; top-of-the-line consumer; 64G flash memory, somewhat tweaked and updated; allows saving of sound as 2-track instead of forcing 5.1).
I produce videos for small opera companies in New York City. My standard product is a one-camera shoot of the opera divided by acts, so I will have files approaching 1-1 1/2 hours. I have found Premiere support to be clueless and/or in denial about some of the problems with these files which almost exclusively have to do with audio (the video editing window looks horrible but the final product is excellent; I think this is being remedied in CS5...)
The usual problem is that the audio drops out at some point. I'm sure that I should put a "do not open til Xmas" sign on the thing and not mess with it while it's conforming and that MAYBE that would stop the "silent-movie" effect at the end of the files.
I have found an effective work-around: CLOSE Premiere, LOCATE AND DELETE the .cfa and .pek files associated with the offending clip, OPEN the .m2ts file in Soundbooth. Save the file as a .wav; re-open PPro, unlink and delete the original soundtrack and replace with the .wav. Hope you haven't edited the video first! Since the application has the same hooks as PPro but uses WAY less resources (and it won't LET you try to mess with the file while it's conforming!) it invariably finishes out the result.
This adds significant time to the workflow. Shame on Adobe for not having fixed this (and other anomalies surrounding AVCHD) during the reign of CS4; let's hope they get it right NEXT version!

Dropped frames during playback & must render everything & tried everything

This is an updated question. My last posting for some reason did not include everything, such as my System Settings, A/V Settings, and View Settings. There also was no Preview option. Hope it works this time.
I am editing a multiple camera project with a lot of color correction (to get the cameras to match up), and photo montages with motion and image compositing.
I am getting way too many dropped frames during playback, and I have to render every little thing, even simple dissolves. It's taking forever to work like this, and is extremely counter productive. I have tried all the obvious things, but nothing seems to be working. Please help.
I have a 17 inch Mac Book Pro, using OX 10.4.8, processor 2.16 ghz, Intel Core Duo, memory 2 gigs, 667 mhz, DDR2 SDRAM.
Using FCP 5.1.4, and Quicktime 7.1.3
My external hard drive is a 300 gig Maxtor One Touch II, firewire 800, 7200 rpm, which is divided up into 3 partitions of 100 gigs each:
First Partition - 12.79 gigs left (did not use for this project. Mac OS Extended (Journaled)
Second Partition - 44.53 gigs left. Currently using now. MAC OS Extended.
Third Partition - 47.75 gigs left. (Used earlier - had another project on it and ran out of space so I switched to the second partition. The other project is now deleted which left me 47.75 gigs.) Mac OS Extended (Journaled).
Here are my current settings that may be applicable:
- Tried variations of playback control: safe and unlimited
- Tried variations of playback video quality: dynamic, high, medium and low.
- Tried variations of playback frame rate: dynamic, full, 1/2, and 1/4
- Record to tape is at full quality.
- Play Base Layer only: Tried on and off
- Monitor Color LCD 1280 x 800 millions, NTSC/PAL 640 x 480 60 hertz NTSC. There is only one ntsc setting which is 60 hertz, so I am unable to increase it.
- User Prefs - Real time audio mixing is at 2.
- System Settings
Memory Usage
Application 100% (1820 MB)
Still Cache 10% (167 MB)
Thumbnail Cache
Disk 8192 k
Ram 512 k
- A/V Settings
Sequence Presets
Frame size - 720 x 480 pixels
Edit timebase - 29.97 fps
Field Dominance - lower even
Pixel Aspect Ratio - NTSC-CCIR 601/DV
Anamorphic - Off
Video Processing - YUV allowed (8 bit)
White Point - White
Compressor - dv/dvcpro-ntsc
Millions of Colors (24 bit)
No Date Rate Limit
No Keyframes Set
Quality - 100
Audio Settings
16-bit 48.000 kHz stereo
View
Video Playback - Digital Cinema Desktop - Full Screen
Sequence
Render All - Everything is checked.
I haven't increase my memory aloted to fcp yet, cause I'm not sure how do it with this version. The article that I found was for the older version. Would that help? If so, could someone tell me exactly how to do it?
Well, that's it. Hope one of you experts out there will be able to help me out.
Thanks
Anneita

Even if you use Dynamic as your playback setting, depending on the complexity of the edit or composite, you may still get dropped frames. Keep in mind that the weak link in this chain is the FW800 connection. You also mentioned that you using quite a bit of color correction as well as motion effects. Depending on the color correction, the more that you add to your sequence as far as effects are concerned, the more processing is required. The dropped frames that you are experiencing is most likely the computer trying to maintain realtime playback at the expense of the quality of the picture. In order to really judge the final result, you'll need to render.
The official definition of Dynamic Playback:
This option allows Final Cut Pro to automatically change between high,
medium, and low quality as necessary to maintain real-time playback. In this case,
the quality of the video resolution can change frame by frame.

Audio drop-out in FCPX with 1920x1080 & 2048x1240p @ 24p (codec Apple ProRes 4444 (Linear PCM))24p

Hi all...
I'm new to this forum.
Is there an audio issue (drop-outs) with FCPX (ver 10.1.2) for 1920x1080 24p, 1080p HD & 2048x1240 24p (2k) - note: films in FCPX are in codec Apple ProRes 4444, Linear PCM?
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I also have a version of the film in 2048x1240 24p at 2k, again Stereo 48kHz...and this does the same audio "drop-out" all the way through. I'm unsure what other formats will create this problem i.e. higher or lower aspect ratios than those above.
Is this a software and/or OS issue? Or a hardware issue? Or both!?
About This iMac details:
iMac 27 inch: OS X ver 10.9.4
Processor: 3.5 GHz Intel Core i7
Memory: 32 GB 1600 MHz DDR3
Graphics: NVIDIA GeForce GTX 780M 4096 MB
Fusion Drive 3.12 TB
Final Cut Pro X was bought & installed with this iMac back in Feb 2014
FCPX version: 10.1.2
Note also: I used Compressor (ver 4.1.2) to convert the files (movies) above to Apple ProRes 422 HQ, Linear PCM and the issue disappeared - the audio and visuals played with no problems. All films play with no issue when opened in QT player. They are also fine when exporting from FCPX. The issue only occurs (as far as I can tell) within FCPX when editing or playing the audio there.
Has anyone encountered this problem?
Kind Regards,
Hakan

Hi Luis,
Thank you for that.
Seems like you have a point about the "hardware" issue. I'm unsure (new to it all) at what data rate my (er...wonderful) fusion drive provides FCPX for smooth playback - or where I can find that info on the iMac. Playing back movies in the 422 HQ codec seems to have no issues (when I converted the movie from 4444 HQ).
But playing the full 4444 HQ, the picture is smooth, but the audio has these drop-outs - even with "best performance" option ticked. Interesting that the audio suffers, not the picture in FCPX - so not sure what's going on there. I also read - perhaps - that to play a smooth ProRes 4444 HQ movie in FCPX the data rate should be min of 500 Mbs (based upon About Apple ProRes) for HD movies and up (i.e. 2k). ProRes 422 HQ needs a data rate of 220 Mbs - so that is my upper-limit to smooth video&audio playback with the current system I have, I guess.
Does anyone recommend a fast USB3 or Thunderbolt drive (500Mbs+) where I am able to run 4444HQ movies with no issues to picture or sound (away from the fusion drive)?
KR
H.

Optical audio drops out intermittently

Hi
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Bad cable?

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TGlen,
Can I get the specifics of your Mac and any third party hardware that is connected including drives and capture hardware? FAQ: What information should I provide when asking a question on this forum?
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Audio drops out randomly in FCP5

Hello,
I'm running FCP 5.0.4 on a G5 OSX 10.3.9 and a AJA io LA with current firmware v1.1 and driver v2.1.
When playing a sequence, audio will be fine. Going from AJA through mixer, to speakers and decks. Then the audio will cut ot completely, but video will continue to play. The meters in FCP show the audio is there, but nothing is getting to the mixer, and therefore nothing is getting onto tape, or coming out of my speakers. This problem occurs in every project we've worked with, and doesn't happen at the same point in the sequence. Any ideas? I'm not sure what other info might be useful, so please request more if you have any ideas. Thank you for your time.
Ben Slocum
KCOY-TV/KKFX-TV

Hi all -- I've experienced this problem on a number of projects, one tonight prompted me to check the forum. I used one of the work-arounds and want to report on it, in case it works for someone else or someone with the FCP development team is reading.
My timeline would drop the audio at a repeatable point each time. If I nested the sequence in another sequence, the audio would play but would have a nasty discontinuity right at the frame where the audio drops out in the original sequence.
I used the transparent video slug work-around and it worked (create a slug, set its transparency to zero and place it over the spot where the audio drops out). This occured twice in my timeline. Both times I had used a certain video clip. I had to stretch the slug to exactly match the duration of the offending video clip in order to keep the audio from dropping out.
This sounds like a bug that should be repeatable and fixed. If anyone with FCP development team wants my project, I would be glad to send it to them on a DVD for investigation. I'm running FCP 5.0.3 on a G5 dual 2.7GHz with an internal SATA drive, so it probably isn't a machine speed issue. (I tried the re-render trick and that didn't work and if I remove the slug or change its duration to anything less than the duration of the offending video clip, the audio drops out again.)
G5 dual 2.7GHz Mac OS X (10.4.4) 4GB RAM

Audio dropping out during playback in timeline

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