Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity › Forums › Adobe After Effects › Mp3 consistent RAM playback

  • Adobe After Effects

    Mp3 consistent RAM playback

    Posted by Graham Macfarlane on July 19, 2011 at 6:43 pm

    Just noticed that an mp3 audio track when RAM previewing a short section in AE doesn’t consistently play at exactly the right time. On one RAM playback it will line up with the visual animation perfectly then on a second play without changing anything it will be out by a fraction of a second.
    Saving the Audio as an uncompressed WAV file seems to have solved the issue but I am curious why the mp3 causes the problem.

    Can’t see a way to stipulate a frame rate for the mp3 (in case of frame rate mismatching) but then I’m not doing that for the WAV file either and it works. Perhaps it’s due to the mp3 compression??

    Any thoughts as would love to know what’s going on!
    Cheers

    Graham Macfarlane
    3D animator and VFX specialist
    London UK

    Graham Macfarlane replied 14 years, 10 months ago 2 Members · 2 Replies
  • 2 Replies

  • Kevin Reiner

    July 19, 2011 at 8:04 pm

    must convert to .aif or .wav
    AE hates mp3 like poison.

    Mac Pro 2 x 3 GHz 6-Core Intel Xeon
    32GB Memory
    Dual-channel 4Gb Fibre Channel PCI Express card
    Dell Display (23″ flat panel)
    ATI Radeon HD 5770
    AJA Kona LSi SD/HD capture card
    Rourke 16 TB
    Flanders 2460

    SOFTWARE
    Mac OS X 10.6.5
    FCP 7
    After Effects CS5
    Boris Continuum
    Sapphire Plug Ins
    All Trapcode Plugs
    Zaxwerks Invig

  • Graham Macfarlane

    July 19, 2011 at 9:20 pm

    Thanks for your comments guys!

    Graham Macfarlane
    3D animator and VFX specialist
    London UK

Reply to this Discussion! Login or Sign Up

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy