Rebuilding waveforms in DP8.06

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waterstrum
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Rebuilding waveforms in DP8.06

Post by waterstrum »

I've recently been recording live broadcast/podcast sessions.
These are two hours long and I'm recording 8 tracks of audio.
Dp has been working like a champ and after two hours of recording, I press stop and wait a minute or so for the waveforms to appear.
I've done 12 of these sessions and Dp performed flawlessly.

The problem now, is that when I re-open the sessions, Dp needs to rebuild the waveforms.
Watching the background processing window, this takes about 5 minutes.
The bad news is that after processing, the waveforms do not appear.
Just a long rectangle for each track.
I can play back the tracks, but editing is impossible.

Is this a bug, or am I missing something?

This might be a fairly unconventional use of Dp, so I may be on untested ground here.

Thanks.
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frankf
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Re: Rebuilding waveforms in DP8.06

Post by frankf »

I had this happen yesterday with 8.06, but with a few tracks imported from another project. Turns out I didn't need them, but I was scratching my head. Is there a way to force DP to redraw the waveforms?


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NazRat
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Re: Rebuilding waveforms in DP8.06

Post by NazRat »

frankf wrote: Is there a way to force DP to redraw the waveforms?
I believe if you delete the analysis files in the project folder it will redraw the waveforms. Only problem is I'm not sure what else gets reset if you delete all the folders, i.e. beats. It would be a pain to just go in and delete the waveform files for the soundbites. Much easier to just trash the whole analysis folder.
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Re: Rebuilding waveforms in DP8.06

Post by frankf »

Thanks, I'll test this.


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Shooshie
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Re: Rebuilding waveforms in DP8.06

Post by Shooshie »

Same thing has been happening to me. First time ever. DP 8.06. Have we stumbled on to a bug?

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Re: Rebuilding waveforms in DP8.06

Post by MIDI Life Crisis »

Uh oh.
2013 Mac Pro 32GB RAM

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Re: Rebuilding waveforms in DP8.06

Post by michkhol »

I had the exact same problem after replacing the files (editing them in a third party app). After I removed the analysis files directory, the waveforms reappeared. Stepped down to 8.05 after that and other glitches.
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Re: Rebuilding waveforms in DP8.06

Post by mikehalloran »

Hmmmm... I have had this in DP 7.24 on long tracks - say an hour 2-track stereo. On my i7, there is little lag but on an i5, I would go out for a cuppa while waiting for tracks to re-draw. This is the reason I have always recommended the i7 over the i5 when people ask what to buy.

In DP 7 and 8, I could duplicate this behavior if the GUI for Izotope RX 2 was open. RX 3 fixed that.

I just opened some of those tracks in DP 8.06. The longest, a 3 track file of 1 hour 16' took 8 seconds to redraw.

I know that I sound like a broken record by now but you do not have to wonder what is going on. Open Console and look to see what is happening. DP also has tools in the Preferences so that you can see the activity. Plus there are other preferences that affect the Analysis.
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Re: Rebuilding waveforms in DP8.06

Post by Evening Films »

I'm finding a closely related issue: DP8.06 is displaying the waveforms -- no problems with just bars -- but it has to rebuild the overview every time I reopen the project. Wouldn't be a big deal, but I'm currently working on a live event session with 4 hours of 24 channels of audio; it takes several minutes of crunching each time I start up. Shouldn't that overview/waveform data be stored somewhere so it doesn't have to be rebuilt?
tonomud
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Re: Rebuilding waveforms in DP8.06

Post by tonomud »

argh....I'm having this same issue right now. I posted another question: http://www.motunation.com/forum/viewtop ... =1&t=57404
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Re: Rebuilding waveforms in DP8.06

Post by dpg4macman »

I just experienced this issue today. I have six live tracks from three separate recorders and I need the wave forms to accurately line up the tracks. I took the advise and deleted the session analysis files and DP re-drew the wave forms. I'm completely puzzled as to what may cause this. Thanks for the tip. : )
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Re: Rebuilding waveforms in DP8.06

Post by Evening Films »

I think I've found the issue in my case. It seems to be connected to the length of the sound file: if the file is large enough to generate an "overview_waveform_65536" analysis file, then DP recalculates the waveform on each launch. If the waveform files only go to 32768 or less, then the waveforms appear instantly on launch -- no recalculation. By trial and error, I found the threshold to be just over 93 minutes (48k/16bit) in length, so this only became a problem with the four-hour files in my recent project.

This doesn't solve the problem, but I have a TechLink in progress with MOTU.
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Re: Rebuilding waveforms in DP8.06

Post by Evening Films »

Evening Films wrote:I think I've found the issue in my case. It seems to be connected to the length of the sound file: if the file is large enough to generate an "overview_waveform_65536" analysis file, then DP recalculates the waveform on each launch. If the waveform files only go to 32768 or less, then the waveforms appear instantly on launch -- no recalculation.
MOTU support has confirmed this behavior. Current workaround is to split large files.
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Re: Rebuilding waveforms in DP8.06

Post by steveo »

Shooshie wrote:Same thing has been happening to me. First time ever. DP 8.06. Have we stumbled on to a bug?

Shoosh
8.04 and 8.05 did it too; 7.x never did. I delete the Analysis files for the track, but you also have to close the project to get DP to notice. And explaining it to the client is never fun.
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waterstrum
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Re: Rebuilding waveforms in DP8.06

Post by waterstrum »

Just had it happen on a one minute song.
I opened it to find two of the stereo tracks as long rectangles.

Looking forward to the bug fix.

10.9.2 DP8.06
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