Removes the soundFile file from the SLUDGE sound cache. Why? Because the more sounds you have in the cache - especially big ones - the more memory is taken up, and the slower your game may run on some older computers. So, if you've just finished using a huge great sound that you don't need again for a while, use this function to reclaim some memory.
Please note that the cache can only hold 8 sounds at once, so older sounds will be unloaded once they're not needed automatically anyway - you don't need to use freeSound to make your game work, and freeing up memory used by tiny little sounds (up to a few seconds long) won't make much of a difference.
No return value.
# Start a sound playing playSound ('bigLongSound.wav'); # Wait 10 frames and then stop it pause (10); stopSound ('bigLongSound.wav'); # We don't need the sound in the cache any more... freeSound ('bigLongSound.wav');
Using Audio in SLUDGE
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