Bitfields for Volume feature bits:
Bit(s)	Description	)
 0	Stereo Volume control available
 2	Low Pass Filter is available
 3	High Pass Filter is available
 4	Parametric Tone Control is available
 5	selectable output paths
 8	Azimuth Field positioning supported
 9	Phi Field positioning supported
 10-30	unused???
 31	Master Volume device