Getting bad audio glitches on crossfades in nested sequences

I believe I've had this issue a long time ago in a previous version, but I'm now experiencing it with CC2014. Audio crossfades in nested sequences are causing really terrible glitches. Sometimes, popping and crunchiness and sometimes just acting like the crossfade isn't even there.
Anyone else having this issue? Any suggestions on how to fix it other than putting all of my audio on separate tracks and keyframing the fades?
Thanks.

Mac Pro 10.9.4
Premiere CC 2014.0.1 8.0.1
This occurs all around my timelines, without rhyme or reason, sometimes here or sometimes there. Does not appear in exports, just within the timeline as I edit and play, scuba, etc.
Sometimes a specific transition or crossfade will glitch, sometimes it won't.
I tried to remove the transition, and it still audio glitched, ** even before I added keyframes. Oddly, this this is happening ONLY on the clips that the transitions were on, and NOW, if I take there transitions off, the glitch is happening on different points within the clip, not just at the transition point.

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Nested sequence: after a cut, audio repeats from previous clip

Summary: In a nested sequence situation, I'm getting short audio repeats from a clip element just prior to a cut.
Context:
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Structure: I have a sync-sequence (multicam source sequence) consisting of XDCAM-EX (file structure broadly along the lines of AVCHD) and Z1 (plain m2t files). Derived from / dependent on that is a multicam edit sequence, where I cut between camera angles. Then that sequence is itself nested in a master sequence (showing selected extracts of the performance).
For reference purposes: Multicam edit sequence consists (among other things) of a rock band's "big finish" followed by some applause. I made a cut in the audio part (only) of the nested sequence clip, to enable the audio for the applause to be normalized independently of the band performance. To smooth the join I added a crossfade transition over the cut. Nicer in principle than using volume envelopes.
When I play the original recording or the multicam sync-sequence or the multicam edit-sequence, all looks and sounds fine.
Problem:
When the Master sequence is played back (in preview or an exported/encoded clip) I hear the big finish, then applause starts, then after 2 seconds the "big finish" is heard once again, but at lower audio level.
This effect happens wherever I have used the same cut/normalize/crossfade technique in the (nested) multicam edit sequence. I have also encountered it in previous projects in Premiere CS6.
If I delete the crossfade then the problem disappears... Doesn't matter what type of audio crossfade is used.
Is this a known problem? and is there a quick workaround? (other than using envelopes instead or copying/patching the audio up to the master level)

Ah so [Sequence > Render Audio] is not just a "luxury item" to get waveforms to display when nested or to (presumably) to lower CPU load (e.g. when audio effects have been applied). It's something that I will need to always do from now on... It's a shame there's a "feature" but great to know of the workaround.
Thank you very much.

X-Fi Xtreme Audio [Windows 7] Random Audio Glitches

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funkywrench wrote:
The drivers are current as far as I know.
So you have checked the manufacturers website/forum etc?
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Something you can do is check this via the activity monitor Applications>Utilities>Activity Monitor. You can check CPU use % and System memory %. I had to do this the other day because of freezing while playback. In the list Called Process Name you will see GB. You can have this window open while GB is active. Just check what numbers you are getting with GB.

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Thx,
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I don't think so. Nesting just puts all the layers into an easy to manage packet.
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This problem seems to pop up on my system from time to time and I can never remember how to correct it.
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I've tried "refreshing" the track as suggested by another thread by way of control clicking and removing none existant attributes. It didn't work. I've tryied adding Audio Filters that will require a render. It didn't work. I've tried deleting all of my audio render files. It didn't work. I've already resorted to overwriting the nested sequence in question with the same nested sequence, but there should be a way to fix this @#$% bug without doing that!
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I apologize to anyone reading this for the negative tone of the post above.
I have since answered my own question and, as usual, the problem turned out to be one of my own making. I'm pretty sure that the reason that none of the other methods worked for getting rid of the glitch was that I had pulled the nested sequence in question out of a different project altogether and added it directly to the time line rather than adding it first to the bin of my final project and placing it into the timeline from there.
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Im getting poor audio... are my files bad?

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Hi there sirmacca2010,
You may find the troubleshooting steps in the article below helpful.
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Hello all,
Just switched from FCP7 to PP 2014. A lot of my video work deals with split track delivery and post. In FCP 7 I would bring in a Pro Res file and have the left track on audio track 1 and right track on audio track 2.
In Premiere 2014, I learned how to replicate this. The problem is that when I pan track 1 all the way to the left I get major distortion on my second track. When I pan the second track (right Channel) to the right the distortion continues. We have two edit suites and I was able to replicate this on both systems.
I thought it was a Pro Res issue, but turns out that I was able to replicate this using PP's own color bar generator. I also experimented with other sequence settings like 29.97 vs. 59.94.
Here's how to do it:
1. In PP go File>New>Bars and Tone. Hit Ok to create this file.
2. In the Project bin, right click on the Bars and Tone and select Modify>Audio Channels...
3. Set number of audio tracks to "2" and Channel format to "Mono".
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The odd thing is that if I pan everything to 99% either way, all is good on both tracks.
I called Adobe and was told that they would look into this as they could not replicate this. I was told I would get a call back in 15 min. 3 hours later I am here sending this out to the community.
This is something that needs to be fixed if I am to use PP at all. Anyone else able to replicate? I am open to any ideas as I have gone through all the settings that I know of. Also, I tried turning off OpenCL with the same results.
Additional issue I found is audio level jumping up when another track comes in. I have a stereo track of music play on track 1. A little into the song I place another audio mono track on audio track 2. I pan the Stereo track to the left and Mono track to the right. When I hit play, the music is at say -12db. Once the playhead hits the mono track, the stereo track jumps up in level even though the mono track is panned to that side.
Thanks,
Jeremy
Mac Pro 2014
OS X 10.9.4
PP 2014 Build 8.0.0 (169)

i'm experiencing the same issue since today.
very loud (nearly ear damaging) glitches on crossfades on audio channel. doesn't matter if mp3, aif, or wav.
plus one channel of stereo sometimes randomly gets louder on transitions for a short time.
is still there in export. no matter if directly from premiere or via media encoder. (export as prores 422 with uncompressed audio). disabled native ppro import in AME, didn't help
cleared all media caches and preview files, didn't help.
not using preview files for export.
read alot about this bug being in older version here on the forums, but it is still there in CC 2014 v8.0.1
i am on osx 10.8.5.
please help Adobe.

Video/audio glitch exporting to MPEG-2 in premiere pro CC

Any help with this one?
I have a recurring problem when exporting a normal DV PAL timeline to an MPEG2 file (as required by my client). The exported video will be peppered with audio/video glitches. Normally, I can get around it by deleting single frames around the 'problem' area but that is a very time-consuming, hit-and-miss approach. I see through an online search I am not the first to have this problem but I cannot see any solutions? I regularly clean out the media cache....
Any help appreciated!

Can you define 'glitch'? Or better yet, show us?
Do these glitches exist in the PP sequence, or only after export?
How exactly are you viewing the exported videos?

Serious audio glitch problem in 9.1.1 - please help!

Got a problem with audio glitching that is driving me insane - hopefully someone can help (please! :_))
I'm on Logic 9.1.1 on a recent MacPro using 10.5.8, 12Gb memory. I've created an arrangement in Logic with two multi timbral / multi-output instruments (Kontakt and Stylus RMX - both up to date versions) with aux outputs for all of the instruments channels; 16 in the case of Kontakt, 8 in the case of RMX.
I'll work with this setup and after a while I find that whenever I play and then press stop, a tiny portion of audio will repeat rapidly, over and over again in the 'master' left output channel at +6.0dB - it also shows up on all the instrument auxes at a much lower level. It's as if Aphex Twin has invaded my Mac... Weirdly, this problem crops up even if I'm not outputting anything from the multi-instruments - it's enough that say, an EXS instrument, plays something, I'll press stop, and then the glitch signal will appear in all the level meters of the multi instruments and master output, but not on the EXS level meter. If I press play again, the glitch disappears and audio playback is perfect - it only happens when stop is pressed. And no sign of it if there's a silent part in the arrangement with no tracks playing anything.
If I have any instances of reverb on bus channels, that audio will will also feed into the left channel of those busses, even when there are no channel strips sending to them. Weird as ****, and driving me up the wall with frustration.
I've omitted it being down to my audio interface (Metric Halo 2882) as the problem persists if I switch to the Mac internal I/O.
I'm trying to work through this at the mo as I've got a deadline for 2pm this afternoon - but I'm worried I might not make it due to throwing my feckin computer out the window. Please help - thanks!

Alasdair Reid wrote:
It's as if Aphex Twin has invaded my Mac...
If your deadline wasn't looming, I'd say buss everything to a stereo track and record this stuff. It sounds great, you could use it in another project later...
But to your problem: The only quick solution I can think of for you to try is to create a brand new fresh project and use the selective track import feature to bring your tracks into the new project. Don't start from an old template (that you may still be using since Logic 8 or something) because this could indeed be the root of the problem. Build a new template from Logic 9.1.1, then make a new project from that and import all your tracks. If it's your project that's corrupted somehow, this could be the trick to solve it, and it won't take too long to try, so it's worth a shot.
I'm not sure of this, but something is telling me I've seen this problem before, and if so it was on Leopard (not Snow Leopard) on a MacPro in the studio. Have never had it on my personal MBP (which was only ever Tiger and then Snow Leopard - I skipped Leopard on purpose because the studio machines seemed so very dicey). Also, I don't use RMX on my own machine but in the studio, yes. Same deal for multiple output instruments, I rarely do that either. On that point, another thing you could try is to forget about multiple outs for now, and just work with stereo instances. Yes I realize this will mess up your entire painstakingly built-up mix.. but if this is causing the flakiness you may have no choice but to go back to stereo instances, finish your writing, then do the whole mute/solo thing to bounce your individual parts to audio and proceed from there. In this scenario, selective track import will be a timesaver too because once you've done all the bouncing, you can just create a new project and import all of your channel strips and so on, to then re-assign the individually bounced tracks to the assignments you had before. Will be quicker to recreate your mix than having to do it from scratch. Or you might not even need to do this step because if eliminating the multi-out instruments makes the prob go away, then you can just recreate your assignments within the same project using the bounced audio tracks.
Get to it.
Once you've delivered.. I'd open that project again and record all of that lovely Aphex Twin messiness for later use.

Audio mixes not correct when inserting nested sequence.

Ah, yet another anomalous behavior issue...
I commonly edit packages for a program I regularly work on, then drop the nested sequences into the show timeline...it's easier that way, and the EP likes it that way. However, I occasionally come across an issue where the nested audio sequence doesn't "remember" the mix levels of the component parts. For instance, I just made an audio adjustment to the open of the show, and dropped the nested open into the show timeline...where it promptly "forgot" the music rampdown I'd just done.
The workaround? I slipped the audio track, blowing out the render files...then dragged the clip back into sync, re-rendered again...and then the mix stuck.
Probably I should do this sort of stuff in Soundtrack, eh?

FCS has lots of quirks (I hesitate to call them bugs because they are not always repeatable). Still, people need to keep in mind that the FCS suite is built upon an ancient (in computer years) core technology (and code). While everyone is holding their breath for 64bit thinking it will be faster, I'm cringing because I know what a massive bit of code this suite represents and the thought that a complete rewrite will get everything correct is simply unimaginable.
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x

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Evening all. I use Premiere Pro CS3 under Windows XP Pro. I've created three sequences, each with one video track. The output 5.1 surround audio track is mixed from four mono .wav files. So each sequence has one video track, four mono audio tracks and a 5.1 master track. So far so good.
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How do I get my audio into the three 5.1 audio tracks?
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>But when I nest the primary sequences, nothing goes in my 5.1 tracks, but 18 new mono tracks are created.
I tested that this evening and my experience is different.
I created "sequence 1" with four mono tracks and a 5.1 master and placed four mono clips in the sequence.
I then created "sequence 2" with one 5.1 track and a 5.1 master. I dragged "sequence 1" into "sequence 2" and did
not mysteriously get four new mono tracks. As expected the "sequence 1" master track comes in as a 5.1 clip.
Please post screen captures of your various sequences.
Cheers
Eddie
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Audio glitch when importing files

I have only recently started using elements 10 and already I have encountered a problem I can't understand. Using my friends handheld camera i made a series of videos that import fine. A canon, but i don't know the model. I have then used another canon, a pc1589 from the uk to record the rest of my video for my movie. However when i import ANY videos from this camera, the audio sounds like it is jumping forward, and skipping bits and is finished by half way through my imported scene. I thought it maybe had something to do with one of the cameras being from the uk and one from the us, so i tried importing the files in a new project with the settings adjusted for the uk camera it still didnt work. I can play the files fine though media player etc but I cannot get the audio working properly in elements and don't have the first idea on how to fix this problem. Please help!

Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
What is a CODEC... a Primer http://forums.adobe.com/thread/546811
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
http://forums.adobe.com/thread/592070?tstart=30
For PC http://mediainfo.sourceforge.net/en or http://www.headbands.com/gspot/
For Mac http://mediainspector.massanti.com/
After importing the "bad" video, and before doing any work, does your timeline have a red line over it?
If yes, your project and video do not match... see above for how to determine the details of your video

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Hello,
i have a few audio glitches at the start of the video.
This happens only at the start of the video, at the first 30-40 sec, where there is a music soundtrack.
I am using encore 2.0 and a portable HP Pavilion dv4000.
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But the sound was changed to 48 khz, at the edit (Avid).
Please i need your help.

Neil,
Thanks for the response. I started looking for Audioblack in the New Asset list, the Transitions and Effects, all through Audition, manuals, Internet, everything, and about all that I found was reference to an indie band - "Audioblack," or comments attributed to you. I have a lot of material from Dolby, from when I first began using 5.1 Surround in DVDs, but did not see this term there. It was probably in some of their more technical papers, and not the "primer" course ones, that I already had. You very clearly pointed out *what* the problem was likely to be, but I wanted clarification as to the exact solution. You cleared that up beautifully.
Based on one of your earlier replies along these lines, I instituted a 2 sec. gap in my Audio Tracks at the beginning of all Timelines, as part of my workflow - 2 sec. Black Video, Dip to Black to 1st Title, and silence on my Audio Track, but was becoming worried, that I needed to create an actual Audio Clip with certain properties. I see that my interpretation of Audioblack works.
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I think, based on some other responses, that involve hardware, that I will dig up a very old, and cheap Panasonic DVD from my gym, to use as a test machine - doesn't get much older, or cheaper, than that.
Greatly appreciated,
Hunt
PS I still use an older Cambridge as the rear-channel amp out of my Carver C-400 pre. Great unit and still going strong!

SuperDrive makes bad audio CD

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I take the same batch of CD-R and use my trusty old PB 12" 1.5GHz to burn the same music, and the CD worked great.
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From what i recall in these forums, the superdrive is really picky about CD models. Im using HP CD-R and they work fine. Its probably the type of CD you're using. And another way to prevent this is to not touch your computer at all while it burns, back in the old old old old old old old old old oldo ldo ld old days, remember when we had to basically not move the entire house we were in and let the burning soak up all the CPU% to get a good burn? XD. Id try a differant type of CD, just trade off some with someone else and test them.

Getting bad audio glitches on crossfades in nested sequences

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