Latest post Fri, Aug 15 2008 11:04 AM by tom_e. 8 replies.
Page 1 of 1 (9 items)
Sort Posts: Previous Next
  • Fri, Aug 1 2008 7:57 AM

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    audio stutter on QT export

    when exporting quicktimes I recently get a bad stutter in the audio, it sounds like having caps lock on and scrolling slowly through a track - every second frame is missing or maybe it´s two on - two off. I put an example with tone media here

    http://community.avid.com/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.03.89.66/TONE--1000-Hz-_4000_-_2D00_14.0-dB.1.zip

    I tried setting the project to different sample rates cause I thought maybe sr conversion is hickupping, it helped once and this morning stutter was back. It occurs on exporting qt uncompressed and ima4:1, the compressions I usually use. I got QT 7.4.5. Sometimes playback sounds the same with me, I think it comes from putting the computer into hibernation (which I know is not supported, but well, wont have it run all day when not used and booting takes time, too. I think export is software-only and should not be involved with my sound card?).

    My current workaround is to export a wave or aiff and stick it to the video using qt pro...

     

    anyone had this before?

    thanks,

    thomas

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
  • Fri, Aug 1 2008 8:14 AM In reply to

    • camoscato
    • Top 10 Contributor
    • Joined on Thu, Oct 13 2005
    • London
    • Posts 4,795
    • Points 57,245
    • Moderator: Avid Free DV
      Moderator: Avid Xpress Pro PC
      Moderator: MCA PC
      Moderator: Meridien

    Re: audio stutter on QT export

    Hi Thomas,

    tom_e:
    I think it comes from putting the computer into hibernation (which I know is not supported, but well, wont have it run all day when not used and booting takes time, too.

    If you've noticed that the problem happens after putting the computer into hibernation, and you know putting the computer into hibernation isn't supported, I think you ought not to put the computer into hibernation.

    good luck,
    Carl

    MC 3.0.5, HP dv9605ea, Vista Home Premium, AMD Athlon 1.8 GHz, 2 GB RAM, nVidia GeForce 7150M, Conexant HD Audio [view my complete system specs]

    There is no such thing as a video emergency.  My Demo Website

  • Fri, Aug 1 2008 8:22 AM In reply to

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    Re: audio stutter on QT export

    Hi Carl, I just too late thought about posting that even after a restart the problem is still there, so I don´t think it´s originating from hibernation... Any other guess?

     

    Thomas

     

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
  • Fri, Aug 1 2008 8:25 AM In reply to

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    Re: audio stutter on QT export

    I meant the playback stutter that I also sometimes experience comes from hibernation...

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
  • Sat, Aug 2 2008 2:28 AM In reply to

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    Re: audio stutter on QT export

    am I the only one with this issue?

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
  • Sat, Aug 2 2008 2:39 AM In reply to

    Re: audio stutter on QT export

    Depending on the size (frame size and file size) of the QT movie, it may stutter audio and video on PC. 

    Try reducing the QT player window down to a postage stamp size and see if it still occurs.

     

     

    MacPro dual 2.66GHz 2GB RAM NVIDIA GeForce 7300 GT Storage: 2TB G-Speed eS with controller card 3x500GB Hitachi SATA-II internals various external... [view my complete system specs]

    -------------------------- Kenton VanNatten Avid Editor "I'm not obsessed... I'm detail-oriented" --------------------------

  • Sat, Aug 2 2008 11:21 AM In reply to

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    Re: audio stutter on QT export

    Kenton,

    it got nothing to do with data rate. Geeked

    I created tone media using the audio tool and exported that as mov (ima 4:1, should be capable to play that on my pc Big Smile), even without video the stutter is there. I posted a link to it in my original post, cause I did not understand how to attach the file to the thread...

     

    any other idea?

    Confused

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
  • Tue, Aug 5 2008 7:39 PM In reply to

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    Re: audio stutter on QT export

    bump?

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
  • Fri, Aug 15 2008 11:04 AM In reply to

    • tom_e
    • Top 500 Contributor
    • Joined on Fri, Feb 10 2006
    • munich, germany
    • Posts 129
    • Points 1,495

    Re: audio stutter on QT export

    well after a lot of Angry

    I went back to quicktime 7.1, now export works...  Confused

     

    Smile

    thomas

    Asus P5B, Core2Duo 2,67, 3GB Ram, Quadro FX 3400, Creative SB X-Fi Music. XP Pro SP2. Media Composer 3.0. [view my complete system specs]
Page 1 of 1 (9 items)