ADJUST_VOLUME_U8   60 libsound/aos4/sound_handler_ahi.cpp #define ADJUST_VOLUME_U8(s, v)	(s = (((s-128)*v)/MIX_MAXVOLUME)+128)
ADJUST_VOLUME_U8   44 libsound/mkit/sound_handler_mkit.cpp #define ADJUST_VOLUME_U8(s, v)    (s = (((s-128)*v)/MIX_MAXVOLUME)+128)