i confirm that if i mute all the tracks and turn master volume up to full i get the noise. but in real life i wouldn't do that. when i first just played the track it sounded fine so without the muting and all songs volume change i wouldn't have noticed any background noise using BIAB 64 bit normally. doesn't happen in 32 bit which i tried first.

however, when i set BIAB 64 bit to make the noise then opened the same file in 32 bit i got the noise which disappeared when i closed BIAB 32 bit and reopened.

almost as if BIAB 64 bit overloads the sound system when set to max volume. same track opened in RB (admittedly RB is 32 bit) no noise or problem

Last edited by Bob Calver; 08/23/20 11:28 PM.