large files streaming from disk


    Mar 23 2006 | 10:09 am
    Hi all,
    A recent project I'm working on involves loading several (8 to 12) large
    files. These files are 309mb mono 16 bit 44100 hz. So they have a duration
    of an hour.
    This amount of data is way to much for the laptop (g4 2024 mb ram) to
    handle. Ofcourse I could convert the files to 22100 hz, then they are half
    the size. I can imagine, however, that the composer isn't going to be to
    happy about such a rash action. I have thought of cutting the files in
    smaller files and then loading the files when the time comes to play the
    file. Only loading files into buffer~ when the patch is running seems to
    disrupt the accuracy of the patch. Which is very important......
    Is there a way to stream files from the harddisc instead of using up all of
    the ram memory?
    Or has someone dealt with this sort of issues in the past? I've searched the
    archives and haven't found anything.
    Thanx
    Wilco Alkema
    student musictechnology & composition
    HKU, hilversum, holland.

    • Mar 23 2006 | 11:12 am
      sfplay~ -- this is pretty basic stuff, and is covered in the MSP
      Tutorials and Topics book. You might want to go back to that for a
      refresher.
      jb
    • Mar 23 2006 | 11:16 am
      Wilco,
      it is possible to do direct-to-disk within Max/MSP. Check the [sfplay~
      ] object.
      But if for whatever reason, you have to use buffers, they are so big
      that you can't use the [play~] object anymore, you have to use
      [hr.play~] instead (you'll have to download it, it's not in the
      standard distribution). Please check the forum's archive.
      p
      _____________________________
      Patrick Delges
      Centre de Recherches et de Formation Musicales de Wallonie asbl
    • Mar 23 2006 | 11:29 am
      Thanx,
      Completely overlooked the preload part....
      wilco