darrenyeats wrote: > "Expand your mind (the rest will follow)"! Such a device can only make > sense in the situation where a signal has been compressed and you are > reversing this process. I'm certain this process will be far from > perfect, but nevertheless expansion is "A Thing". > > I repeat, it exists. It can come to pass.
If the music has been compressed using a known, fixed non-linear function, it can be uncompressed by applying a non-linear function that is the inverse of the compressing function. This is how many early speech codecs worked in the telephone world. Unfortunately the compressor algorithms used by studios are not fixed, but variable in time, so "undoing" them becomes a bit of a challenge (engineer-speak for "pretty much impossible"). In any case, you are applying non-linearity... "To try to judge the real from the false will always be hard. In this fast-growing art of 'high fidelity' the quackery will bear a solid gilt edge that will fool many people" - Paul W Klipsch, 1953 ------------------------------------------------------------------------ Julf's Profile: http://forums.slimdevices.com/member.php?userid=42050 View this thread: http://forums.slimdevices.com/showthread.php?t=105070 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
