Skip navigation
murder_sp
murder_sp
Currently Being Moderated

Audio bug

Jul 8, 2011 7:19 AM

I use premiere pro cs4 and i have this sequence that is about an hour long, when i preview the sequence in premiere, halfway through playback the audio volume drops, if i move the playhead back some seconds and continue playback, the audio  volume is ok for some minutes then it drops, if i repeat the process of moving the playhead back and i resume playback, everything goes back to normal. I figured it was no problem since the audio volume returned to normal after i moved the playhead back some and then resumed playback. But the real problem was when i exported-the audio volume was inconsistent at those places where i experienced playback problems, is it a bug or is something wrong(none so far as i can tell) with my audio.

356 Views   9 Replies   Latest reply: swis_sims, Mar 9, 2012 9:31 AM
 
Replies
  • Bill Hunt
    Currently Being Moderated
    1. Bill Hunt,
    Jul 8, 2011 7:21 AM   in reply to murder_sp
    Report

    Frist, what are the specs. of the Audio? If necessary, MediaInfo can get those specs. for you.

     

    When doing playback, with Audio Mixer visible, do you see the Levels Meters reflecting the loss in Volume, or are they showing the same Levels, as when you heard the Volume at proper Levels?

     

    If the Audio Mixer Levels Meters are showing the proper Levels, then perhaps tell us more about your computer, and especially the I/O, the CPU and your Audio sub-system.

     

    Good luck,

     

    Hunt

     
    |
    Mark as:
  • murder_sp
    Currently Being Moderated
    2. murder_sp,
    Jul 8, 2011 8:53 AM   in reply to Bill Hunt
    Report

    The levels meters reflect the loss, the audio is a 16bit stereo wav file at 48000khz and is perfectly alright.

     
    |
    Mark as:
  • Bill Hunt
    Currently Being Moderated
    3. Bill Hunt,
    Jul 8, 2011 9:12 AM   in reply to murder_sp
    Report

    OK, thank you for that info.

     

    One last question: when observing the Audio Mixer, do the sliders for that Track move on their own?

     

    Good luck,

     

    Hunt

     

    PS - also, is your HDD, where the Audio file is located, 5400, 7200 or 10K RPM?

     
    |
    Mark as:
  • murder_sp
    Currently Being Moderated
    4. murder_sp,
    Jul 8, 2011 10:12 AM   in reply to Bill Hunt
    Report

    No, the sliders for the track does not move, as for the hdd i don't know for sure.

     
    |
    Mark as:
  • murder_sp
    Currently Being Moderated
    5. murder_sp,
    Jul 8, 2011 10:17 AM   in reply to Bill Hunt
    Report

    No, the sliders for the track does not move, as for the hdd speed, i don't know for sure.

     
    |
    Mark as:
  • Bill Hunt
    Currently Being Moderated
    6. Bill Hunt,
    Jul 8, 2011 10:27 AM   in reply to murder_sp
    Report

    Good, as that rules out any accidental automation with Track Keyframes. Did not think that would be the cause, as the exact spot that the Levels do fall, seems to change, and with Track Keyframes, they would be constant.

     

    Good luck,

     

    Hunt

     
    |
    Mark as:
  • murder_sp
    Currently Being Moderated
    7. murder_sp,
    Jul 8, 2011 1:16 PM   in reply to Bill Hunt
    Report

    I cut the audio clip at those areas where the abnormalities usually start and transfered them to a different track and now i don't seem to have any problems.

     
    |
    Mark as:
  • Bill Hunt
    Currently Being Moderated
    8. Bill Hunt,
    Jul 8, 2011 1:44 PM   in reply to murder_sp
    Report

    That is odd, but so long as it works.

     

    I am at a loss to explain why that somewhat random drop-out is occuring, when your Clip is un-cut and on the original Audio Track. Maybe another has an idea on the why.

     

    In the end, glad that you have it working, and thanks for sharing what workflow allowed for the success.

     

    Good luck,

     

    Hunt

     
    |
    Mark as:
  • swis_sims
    Currently Being Moderated
    9. swis_sims,
    Mar 9, 2012 9:31 AM   in reply to murder_sp
    Report

    Hello,

     

    This is an old thread, but I have been having the same issue. I just upgraded to cs5.5 and was hoping this issue would go away but sadly it has not. I will have an audio clip that I recorded on my H4N, no key frames, just some edits on gain, and noise reduction. When I play back the audio is fine, but every now and then when I reload my project, or render my levels drop to very low levels, and then go back to where they should be about 5 sec into the clip. It feels as though my clip has forgotton what level it should be playing at and then suddenly remembers. This issue almost always happens at the beginning of a sound clip and never in the middle. Like I said I have checked for random key frames to see if they slipped in and that was not the case. As the author said as well if I play back the issue corrects itself. For me to get a good render I seem to have to check every sound file and play it back a few times to make sure it works but as I render dozens of sound clips a day, I simply can not check all and some slip through. This feels like a software bug to me, I was really hoping I could find and answer for this.

     
    |
    Mark as:
Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)

Answers + Points = Status

  • 10 points awarded for Correct Answers
  • 5 points awarded for Helpful Answers
  • 10,000+ points
  • 1,001-10,000 points
  • 501-1,000 points
  • 5-500 points