| Bad clipping problem
No matter how much I tweak the sweep, input and output settings, I cannot prevent clipping. At the point where I get the input VU to register something, the number at the top is always "-0.0". Even with the settings you see in the attachment, my measurement level is low, headroom goes to 0.0 and I get clipping and the "Impulse peak is not where it should be" message.
I have the volumes set so that my Galaxy CM-140 is registering ~75db, but when I do a Set Target Level, it comes back saying I'm at 90db. I'm not sure why the disparity from the Set Target Level and what the SPL meter is saying. I have the calibration file for the Galaxy loaded and the meter is set to slow and C weighting. I can only get input to register when the level on the SPL is on the lowest setting. I would expect that, if the SPL is reading ~75db and I set the level to medium, I would still get input signal, but I don't.
Since I always get clipping and 0.0db headroom on measurements, I don't give the resulting graphs much value, so I'm not posting them at this time.
Setup:
Galaxy CM-140 connected to line in of PC. Line out of PC connected to DSP1124 with Operating Level switch depressed (-10db). Output of DSP1124 to M&K MX-150THX subwoofer with low pass filter bypassed, phase + (tried - too) and variable input set to "reference" (12 o'clock).
Any help is appreciated.
Thank you,
Michael
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