evdplancke;691573 Wrote: > I've tried DRC Designer to build up Inguz convolution filters for my > Touch. It helped to build up the RC filters on an easier way, but did > not help to get better results: none of default generated filters give > a correct sound (still horrible cavernous/distorted sound). > > Then I tried the evaluation version of Audiolense: once setup, it is > even easier to do the measurements and to build up the filters. But at > the end, I am quite disappointed by the results: I lost the brightness > and crisp of my treble and, even worse, the soundstage was broken. With > RC filters, my left-right channels get clearly separated and my speakers > become "visible" again, like I lost the "center channel" and the whole > spatial representation gets broken. > > Does anyone have an advice to imrove my results. I see currently two > possible issues? > 1) I did not use mic calibration file in Audiolense and since the > treble response of my mic is quite high, it is probably too much > compensated by RC (this is for the treble issue). Does anyone have a > decent calibration file for Behringer ECM8000? > 2) I positioned my mic on my central listening position without exact > measurements of the distance between the mic and the speakers. Maybe > the mic was not exactly equidistant from the speakers and the phase > correction of RC filter moved the stereo focus point away from my > central listening position. Does it seem plausible? I am also thinking > of using string to position the mic exactly at the same distance from > both speakers. Does it make sense? > > Conclusion: even if I know that my room frequency response is all but > ideal, this is the one that gives me the better sound right now. > Achieving good results with RC seems rather tricky for me.
As I know DRC is very intolerant to distance differences of the speakers to the mike. Have you checked that? Audiolense, my experience: what you describe is for me a typical phase misalignment result. Can you check that all your channels in the speakers are in phase? Have you checked your speakers with a phase alignment record (I use Stereophile test CD track 17). I have 5 channels speakers; even one driver with inverted phase gives the described result. Another possibility would be a major time misalignment of the drivers, it gives the same result. Audiolense cannot correct for such major misalignments. Normally the center image should be even more on focus than not corrected. 1. Yes Behringer mike should be corrected since it is hot above 8 kHz, there isn't a "Typical" correction but you can use the attached file 2. At the end of the measurement Audiolense gives you the channels time difference, it is right to the upper frequency range in the upper part of the measurement window. The difference will be 0 if perfectly centered but as Phil said it is not a strict necessity. Chris +-------------------------------------------------------------------+ |Filename: generic ECM8000-CS.cal.txt | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=13085| +-------------------------------------------------------------------+ -- krzys ------------------------------------------------------------------------ krzys's Profile: http://forums.slimdevices.com/member.php?userid=2256 View this thread: http://forums.slimdevices.com/showthread.php?t=93393 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
