Peak Audio Files

Having real problems with peak audio generation. Lots of projects that I open or re-open that where created in any version of Premiere CC (including 2014) have the wave form missing. I have tried clearing the media cache to force Premiere to re-generate the peak files but with no luck. I would rather not use render and replace as a solution to this is there an easy way to get premiere to regenerate the peak audio files manually? or at the very least an easy way delete any cache files on my system in order for prem to automatically regenerate the peak audio files? Without a wave for it is making it very difficult to edit the audio in my projects
In terms of the system I am running if that helps shed any light on the issue its a new 12 core MacPro and this is a clean install of Premiere Pro CC 2014 without any previous versions lurking around on the system. All my projects are stored on a SAN but the media cache is pointed to the local machine rather than set to store stuff with each project.

There are Preferences for this.
Check the Audio prefs panel and the Media panel.
You can turn on/off PEK file generation and enable these to be stored in a specific location.
Using a SAN, I would adjust the Media prefs to store cahce files alongside the media.

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BIzarre!? - Peaks of audio file higher in the negative side...

I've just been recording some bass today through my Avalon 737 into a Metric Halo ULN-2....
When i look at the audio file in sample editor it seems that the peaks are noticeably higher on the negative side of the waveform. - The file 'clipped' and reached (-100) many times but only (+100) on a handful of occasions...
Is this normal or is there something wrong with the preamp or audio interface?
many thanks
J

RoughIsland wrote:
Hello again,
Ok, I've done a quick test today for two things:
1. DC offset - logic analysed the tracks and said 'no dc offset found'. Although the troughs seem to be noticeably bigger than the peaks at the start of the notes, towards the end of the notes (bass gtr) the peaks were higher than the troughs. - i suppose this cancels out over the duration of the full note?
Then you do NOT have and DC voltage issues. From now on, IGNORE any and all comments on DC offset. You don't have any. This is a good thing.
2. However, I've looked at every note and each one starts with a trough when first plucked - so assume i have -ve phase in my setup from what you previously said - this is the case with both the preamps in the ULN-2 and with the Avalon 737 as a pre and using the ULN2 as just an AD convertor.
I suspect bad wiring. Check the wiring for your equipment, and FOLLOW what the mfr recommends you should use for their equipment.
MOST (99%) of gear that has BALANCED wiring, is wired as follows:
For an XLR connector :
PIN 1 = GROUND
PIN 2 = COLD voltage.
PIN 3 = HOT voltage.
For TRS (1/4" Tip-Ring-Sleeve) connectors:
SLEEVE = GROUND
RING = COLD voltage.
TIP = HOT voltage.
Cheers
Is there anyway that I could reverse the phase that's coming from the ULN 2 going into the computer?
Yes. Re-wire your setup. Someone is not playgin nice with the pinouts...
I can only assume negative phase in the audio files would be a problem if the > software instruments produce positive phase audio when playing?
Absolutely. this is probably why, when you mix, some notes sound thin, while others sound too big and boomy. And you have to do extreme EQing to correct the issue.
Does that make any sense?!
It does to me.
thanks again for all your help,
J
Cheers

Sequence Panel and CTI lock-up - Solved, problem due to 48kHz .wav audio files

Answering my own issue here, but maybe someone else will benefit as well...
PC, Windows 7
Upon opening an ongoing project I found the sequence panel and CTI were immediately unresponsive. The PC was also showing a high amount of background processing on the PrPro processes. I went back to a previous project version and everything was normal.
In the latest (problem) version I had added some VO to the sequence - audio .wav files encoded as 48kHz, 16bit.
I then renamed the audio file folder and reopened the newest project, causing PrPro to not find them and placed them offline. Everything returned to normal.
I then converted the 48kHz audio files to 44.1, 16bit and reopened the project, designating the new files to replace the old. Again, opeing the newest project, everything was OK and I was able to continue on.
It seems that the 48kHz files were causing PrPro to hard-loop in a background process in the indexing, conforming and peak file generation phase. I found when using the problematic project that the sequence panle adn CTI were actually responding, but only after a very long delay. An example would be to try to reposition the CTI with no response, then clicking play and stop in the playback window, then the CTI would update.

That is odd
When I do DV project with video that is digitized by my old Pinnacle DV500 card, the audio inside the DV AVI is always 48khz 16bit stereo... and I do, of course, create a project to match the files

How to nudge audio file less than 1 tenth a second on time bar

I'm using FCE 4.0.1
I need to either move the video/audio file or the separate audio file brought in from Logic to line up with one another (they are the same audio, just denoised and EQed a bit in Logic. I've zoomed in to line the waveforms up, but they are just slightly off, and when I try to nudge one or the other into sync visually the file I'm moving jumps to the next point on the timebar and is off in the other direction. For example the section I'm trying to nudge jumps from 4:01:14 to 4:01:15, but the wave peak I'm attempting to sync it with is in between those two points, so it jumps past it. This will cause echoing and phasing issues.
Is there a way to drag files in the timeline linearly rather than from arbitrary point to point? I've tried shortening and re-bouncing the audio file, but it lines up the same way.
I'm new to FCE, and I'm trying to edit shots from 2 cameras at a concert along with the mixed audio? I'm trying to line the footage up with the audio by matching the waveforms by eye. What am I missing, is there an easier way to do this?
Thanks

See if this helps:
https://discussions.apple.com/message/13372236#13372236
Al

All audio files "hiccup" at the 10 second point

I've been using iTunes for about six months and have just encountered a new problem.
For all my audio files(about 2500, at the 10 second point of playback the playback distorts and clicks for about a second and then continues to play properly. This is a new problem for me, and I haven't made any recent changes to hardware or software on this machine. And...the files themselves seem to be fine and playback cleanly on Windows Media Player and other audio programs. Also, this occurs regardless of whether or not other programs are running simultaneously.
Any thoughts?

The virus checker thing is a quick fix if it works, but mostly it doesn't except with NOD32.
It sounds as though you have tried the audio playback problems page?
http://docs.info.apple.com/article.html?artnum=93610
You need to be sure you are upto date with your drivers and that you are on the latest version of iTunes, but I am afraid this can be an intractable problem for some people. I never got 7.0 to work properly and went back to 6.05. But 7.1 has works fine for me.
It is normal to get a peak in processor usage around track changeover, mine goes up to about 20% briefly. A lot of accesses to the library files and preference files go on then.
Sorry I can't be more help.

At what point will gaining an audio file introduce noise or distortion?

I know that in the mastering process an entire stereo mix file will be gained by at least 6 db or so. My question is: At what point will gaining the signal become problematic.
I'm talking specifically about gaining an *audio file*, I'm not referring to gaining a software instrument track.
Thanks!

eMagnus wrote:
I know that in the mastering process an entire stereo mix file will be gained by at least 6 db or so. My question is: At what point will gaining the signal become problematic.
It's the man of a thousand questions...
There's no rule(s) regarding mastering as it varies according the genre and can even vary from track to track. Mastering doesn't necessarily have anything to to do with gain unless it's to balance tracks so the album/CD/DVD has cohesiveness.
Regarding digital distortion:
The simple answer is, don't go over 0 <zero> DB, although peak levels with short durations can be tolerated.
There's two main avenues regarding distortion... peak level and RMS level.
The lower (moving towards 0db) the RMS level, the less dynamics you will have and the more overall gain the file will have.. when I produce commercials I generally keep the RMS level at around -15db, this gives a fairly constant level with just enough peaks and valleys that I can stand listening to it. Some rock/dance producers master down to -12 or -10db.
To show how insane the loudness wars are I've seen tracks mastered at -8db and have heard of tracks being mastered at -6db or less. At this point there are virtually no dynamics every bit of the audio spectrum is used, it's a wall of sound. Even if the peak level never goes over 0db the RMS power can cause less than quality audio systems to distort as the preamps break up from input gain.
Something to think about, you might want to do some research on your own, people giving you answers IS NOT learning.
Also... learn a little about the history of mastering, how it was originally conceived as opposed to how it is used today.
pancenter-

Batch processing of audio files?

Hello,
Is there a way to easily apply a particular process to multiple audio files without having to set it for each file individually?
For example, if I wanted to apply a fade out of a certain length - say 5 ms - to about 80 small audio files...
A friend of mine uses PEAK for sample editing... In PEAK, this can be acheived very easily by turning on the "batch processor", tweaking the settings, and then it applies that process to every file you import until you turn the batch processor off, and since you can import multiple files at once, voilla!
So if there is a way to do this sort of thing in Logic, or any of the other apps that came in Logic Studio, please do share.
Thanks in advance

Actually, you could use SoundtrackPro, which is bundled with Logic Studio. I didn't try fades but I have a few other AppleScripts that I use for batch processing. What you have to do is to open an audio file, do whatever you need and save that as an AppleScript. After that, all you have to do is to drag your files on the AppleScript icon in the Finder.

Are plug-ins applied in the recorded audio file with GB2?

I have a very basic question and I think I know the answer but I just want to have a confirmation. I am using the ChannelStrip plug-in from Metric Halo, which is great by the way, I am wondering if the process is applied directly in the audio file when I am recording a track or if it will only be when I export the track to iTunes? For example when you process a file with a software like PEAK you must indicate that you want the plug in to be applied to the audio file unless it will leave the original audio file unchanged.
Thanks in advance!

If I can remember rightly, a sound recordist friend of mine had one of these units and there was a problem importing the audio from it into pro-tools and avid. I do remember though it was a firmware update that eventually fixed it.
Also does this thing record dual stereo channels onto one .wav file, or two seperate .wavs?

How would you do this? CD tracks from one large audio file

I just recorded in a live concert into Soundtrack Pro. The file was recorded at 16bit & 44.1KHz. I want to make a CD of this without any gaps. I am curious how to put in markers/CD tracks so that I can jump to each song.
Anyone know of a way to do this without breaking all the audio up into individual files?
Thanks!
Gary

Afaik, there's no way to do it in STP without doing independent audio files for each track. In theory, you could create an audio file for each track, don't have any space between each track and burn your CD DAO (Disk-At-Once) and everything should be fine. However, I'd rather have one long file and just put markers where you want the track indexes. If you have Waveburner, you can do this with it. If you don't, Peak can do this as well but my new favorite software for that job is Wave Editor:
http://audiofile-engineering.com/waveeditor/
At 79$, it's a no-brainer deal!

Muting Tracks in STP Audio File

I'm sort of new to STP. I should have asked this awhile ago, when I first started tinkering with it, but I made due. There is one thing I can't figure out for the life of me and that is how to apply an effect to only one track in an STP audio file from FCP. I send the original FCP file to STP as an Audio File. When it opens in STP I see the two channels. The only way I've been able to figure out how to mute one of these channels is by "disabling all" and then enabling the channel I want to hear. That works fine, however, when it comes to applying the effect to that channel, STP wants to apply it to both channels. Even when highlighting only one channel (via "apple-click & drag") I really want to normalize one channel b/c the other channel has a couple peaks from mic noise that don't allow the other channel to be properly normalized. Any suggestions specific to the points in this question.

My basic advice is to not use the Audio File editor and use the Multitrack editor instead, it's much easier to understand and use.

Audio files PLEASE HELP

ok, can someone explain to me why when i recorded the tracks they had no digital cliping on it and now i just opened the project and they all clip. help me out please

Hi Bassmasterjosh,
There are a few tyes of clippping distortion.
1. The file is distorted. Check your audio file in the sample editor window, and check the peaks. Are they horizontal? Are they normal?
2. The mix buss is distorted, and the resulting mix is distorted. TURN DOWN THE VOLUME of all the tracks!!!
3. The audio driver is bad / corrupted, but still passing audio. This means your audio files are all goood, and your mix buss is not distorting either. You have to re-install the audio driver for your audio hardware. Make SURE the driver is the right one.
Now, which one of these three possibilities is it? Or is it something else?

How can I see previously stored tunes no longer on my computer? Where are iCloud audio files?

Maybe my question has an answer too "obvious" for me to see it. But lately I've become aware of tunes that, for one reason or another, are not showing in my iMac's iTunes program. I went to System Preferences and clicked on "iCloud." Immediately, I saw how to check iCloud for the following files and documents: Mail, Contacts, Calendar, Notes, Safari (not sure what this category could be for--seeing what was on the web at some prior point in history?), Photo Stream, Documents & Data, Back to My Mac, Find My Mac.
In other words, going to iCloud appears to reveal categories for all of your iCloud content EXCEPT your music files. I know about iTunes Match, and I think I like it, now that I've gotten used to a few of its quirks. But certainly there are times when the owner of downloaded, commercial audio files (i.e. Tunes) will not have them on his computer. And certainly there must be a way for me to see what I've previously stored in the Cloud--if only to remind myself of the music I've purchased and have available to me.
I may be missing something about the whole iCloud concept. Is there a way for me to see tunes I've previously stored in the iCloud but no longer have on my computer? (I'm always careful not to delete tunes from my iTunes program unless I see 2 or more identical files appearing on my computer).
Thanks for any directions to the iCloud musical holdings / archives--or clarification of any misunderstandings.
Cap
(I see that I'm currently running OS 10.8.2. I have only 500 gigs of memory, and my music collection is so larg, I'm almost dependent on being able to access songs in the iCloud. Next time, I'll certainly pony up for the largest memory Apple offers on an iMac.)

They are not showing up in Lightroom at all. I already deleted them.
When I try to import them again into Lightroom it wants to add another 2012 folder to wherever I am trying to insert them and then it does the month/day folder when it already has the month folder it should automatically go into and not be adding a seperate 2012 folder first.
I can't even get it to do the above right now. Now all it does is it wants to make this seperate 2012 folder with the month/day folders but has little boxes beside each folder showing that there are no images to import. The images do show up on the import screen but they are all darkened and unchecked. When I click the proper folder to import them they come on bright and have little boxes checked, but that lasts for less than a second before it decides they are not new. They are new images, I deleted them all out of Lightroom, and probably missed deleting some through Lightroom but instead deleted them straight from the folder outside of Lightroom. This is what is probably causing me such grief and I have found nothing in my searches to tell me how to correct this. *sigh*

Download Helper, even with paid converter upgrade, gives "Invalid Capture File" errors and will not record audio, with "File Creation Error - Unable to rename/copy audio file" Error.

Download Helper Screen Capture worked to capture video if the default "no audio" option is active. But, no audio. The "speakers" or "microphone" audio options are confusing....the audio to be captured is from the video, so what do you choose? With either "speakers" or "microphone" selected, the captured file has poor audio and no video. Re-capture efforts (speakers) get "Invalid capture file error" and "File Creation error- Unable to rename/copy audio file"
The paid upgrade of "Converter" doesn't work.
Instructive documentation - not very good.
Suggestions - Need time delay between initiation of "Record" and starting the video to be recorded.
Could use timer tracking of the record process.
Are there operating system limitations? (Have Windows XP Pro)

That is an issue for the developer of that Download Helper.

My Iphone won't sync my CD audio files, after having them on my Iphone for years I updated the other day and they all dissapeared, all that's left is songs bought from Itunes.

I've had an Iphone 4 and I have been listening to hundreds of songs no problem for the past year and a half I've owned it. The other day I decided to sync my Iphone to my laptop to get two songs from a CD. After doing this process and approaching it like I usually would (without causing any problems) I checked my Iphone to see if the two songs had downloaded after the sync. I discovered that my Iphone had lost every audio file that was not bought from the Itunes store leaving me with a sliver of songs to listen to. I immediatly checked my laptop (a Windows device) to see if my music was still there, thankfully it's all on my laptop and the songs play without a problem. So I attempted to sync the songs to my iphone several times, but the CD songs would simply not sync (When syncing your Iphone it consists of 5 steps, the progress bar skips steps 3-4, those are the steps when your music syncs). I'm not an idiot, I checked the small details (checking all albums and songs I wanted and checking the 'entire music library' option) as well I checked the big details (making sure my phone and Itunes were up to date, changing the USB to Iphone wire with another just like it). After a couple of hours of tinkering with different ways to sync I was stumped so I decided to restore my Iphone to factory settings. After doing that and setting up my Iphone newly I still could not download those CD files from Itunes to my Iphone. I called apple support and they recommended that I uninstall Itunes and re-install it. Again no success, all my music is still on my laptop working fine, but I can't seem to sync my CD songs from itunes to my Iphone. If anybody has any info please help. -A college student who needs something to listen to everyday on the hour long bus

Amazing steps you've done so far! The great news is this is very unlikely an issue with your iPhone.
I've run into a similar issue lately as well. I narrowed it down to one song that was causing 30 songs not to sync. I removed the song from the sync list (unchecked it) and all 29 songs were able to sync.
You may be running into a similar issue. This may be a problem with this version of iTunes, an issue with one song or a group of songs; hard to know for sure. It's important to narrow down and isolate the cause. Most imporantly get that music back on there!
The way to narrow down the casue add just a few songs at a time (even 1, just to get that first sync finished). Manually syncing is what you'll need here.
Plug in your iPhone, on the Summary screen (shows a picture of your iPhone, the iOS version, Restore iPhone....; etc). Under the Options area at the bottom choose to Manually Manage Videos and Music then choose Apply in the lower right. The music that's on your iPhone now should be removed from your iPhone now. You're now able to sync music manually.
The link below explains how to drag the songs from the iTunes library on the computer on to your iPhone which will start the sync. Add just one song just to see if you can get 1 of those hundreds of songs on there. If you can, awesome! Keep adding until you find the song or group of songs that are causing this issue.
http://support.apple.com/kb/HT1535
Please let me know how things are going.
Cheers!

Problems with Firefox 13. Can't see online audio file player. Video only works on some sites. All works OK in I.E. Updated Flash. No Change

Problems began when Firefox 13 automatically updated. tried downloading latest version of Flash 11.2.202.235. No change.
Video works sometimes on YouTube, not at all on most other sites.
Audio player not working at all. Either not even visible or downloads to real player versus playing within application such as Amazon.
Tried enabling/disabling Add ons to find culprit. No luck.
Everything as it should be in Internet Explorer.
On my WordPress site has MP3 audio files, and uses a flashplayer to display and play music files. With flash player on, nothing displays at all, (bank space where audio player would normally be displayed)
If I disable shock wave flash, a text link is displayed that downloads the MP3 in a new window (quick player), Also video doesn't work on any website. If I disable Flash and quicktime, text link to audio file downloads to realplayer.

hello msandman, there have been quite a few issues with adobe's latest flash update - can you try if flash content is showing up correctly again, when you disable the real-player components like mentioned in the following article: [[Flash 11.3 doesn't load video in Firefox]]?
otherwise you could also try to remove flash 11.3 from the windows control panel/programs section & [http://forums.adobe.com/thread/889580 downgrade to the 10.3 branch of the plugin], which is still receiving security updates.

Peak Audio Files

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