great news! Thanks. At the moment, I don't actually have a polarity inversion in the signal path, just an inverted SB3 source. So the SB3 analogue outs are in phase with speakers, just the whole lot is inverted!
But if I understand correctly, I could rememdy this as follows... 1) temporarily introduce a polarity inversion between the RCA ouptuts and my speakers for the measurement stage only (i.e. switch the speaker wires). 2) capture left/right data 3) create the filters - these will introduce a polarity inversion to correct for (1). 4) My speakers will now play in anti-phase to the SB3 analogue outs, so simply swap my speaker wires back to correct polarity. Result: correct absolute polarity from a modified (inverting) SB3 when playing through the filters (plus of course, room phase correction). Does that make sense? Presumably, I could even just invert the measured speaker channel data in Audacity before creating impulse files, rather than messing with speaker wires? Does this "fiddle" have any impact on the room correction performance? Thanks for your help Dave -- parrydave ------------------------------------------------------------------------ parrydave's Profile: http://forums.slimdevices.com/member.php?userid=6079 View this thread: http://forums.slimdevices.com/showthread.php?t=31169 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
