How can I convert old unix executable sound files?

Discussion in 'macOS' started by Baron83, Aug 6, 2008.

  1. Baron83 macrumors newbie

    Aug 6, 2008
    I have a bunch of old (system 7) sound files I can't use in X. They have no file names only the sound title. Command-I lists just the name and Unix Executable File. No wma, aaif, etc. Does anyone know a way to convert these to usable files?
  2. Baron83 thread starter macrumors newbie

    Aug 6, 2008
  3. wrldwzrd89 macrumors G5


    Jun 6, 2003
    Solon, OH
    Just thought I'd mention SystemSound Extension - it converts System 7 sound files, and can play them too - even on Intel Macs.
  4. Dan Appleby macrumors newbie

    Jun 11, 2013
    Sorry to raise an old thread!

    I am having a similar issue to the OP...

    I recorded my old band ages ago (2003 - maybe earlier) using a classic iMac running OS 9 and Logic 5 (i think), and have just found the backups I made. The audio files appear as Unix Executable Files (see attachment), and I can't get any audio software to play them back for love nor money. I seem to remember the original file format being SDII (.sd2 or Sound Designer 2 format).

    I have tried the system sound extension mentioned but it doesn't seem to work on OS X 10.8 and the original software developers email address just bounces every time I try to contact.

    I have however, been able to extract the original audio from the files by importing the 'raw' data into audacity... but this is mega time consuming and would literally take me weeks!

    I guess what I'm looking for is a bit of software that will batch convert the raw audio data into a readable .wav or .aif audio file, that will run on OS X 10.8.4.

    Does anyone out there know a solution??

    Any help would be hugely appreciated.


    Attached Files:

  5. benwiggy macrumors 68020

    Jun 15, 2012
    Just to point out that any file without any file association to an application, that also has the x flag set, will appear as a Unix executable.

    "Classic" Mac sound files were saved as AIFF on the resource fork, rather than the data fork.

    I can't suggest an app for automation, but you might see if Automator and QuickTime Player will do anything.
  6. switon macrumors 6502a

    Sep 10, 2012
    RE: sox...

    Hi Dan,

    Have you tried "sox"? See the man page for "soxformat", it literally lists hundreds of sound file protocols that it will convert, including your sd2 format. I have used "sox" in batch mode before to automate the conversion of hundreds of sound files.

    "sox" is available from MacPorts.

    Good luck,

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