You can download a special build of MC19 Mac here that will help us debug integer mode problems.
http://files.jriver.com/mediacenter/channels/v19/latest/MediaCenter190066.dmgOnly use this build if integer mode is not already working correctly for you.
Turn down the hardware volume when testing, because wrong values will sound like noise.In Options > Audio > Device settings... > Integer debug, try these values (enter only the number, stop playback and restart each time):
32 (32-bit data, no padding, little-endian)
524320 (32-bit package, 24-bit data, little-endian, padding in LSB)
8912928 (32-bit package, 24-bit data, little-endian, padding in MSB)
655392 (32-bit package, 24-bit data, big-endian, padding in LSB)
9044000 (32-bit package, 24-bit data, big-endian, padding in MSB)
The values will be used when doing integer mode playback to override the setting we're currently building from the system.
My hope is that one of the values will sound correct.