Change playback volume. Change the amount of memory allocated for double-buffered playback. Change the default playback sampling rate for sounds with unknown sampling rates. Change the default playback bit resolution. This Macintosh is fast. This means that the processor and disk are fast enough to play compressed and CD-quality sounds via double-buffering. This Macintosh isn’t fast. This means that either the processor or the disks are too slow to play compressed or CD-quality sounds via double-buffering. Pre-scan µ-law and A-law files to determine the best playback scaling rate. Enable “Play a/µ-Law as 8-Bit” to modify this value. Play µ-law and A-law files as 8-bit without pre-scanning the file. Play µ-law and A-law files as interpolated 8-bit samples. Play µ-law and A-law files as 16-bit samples.