"Yes, that's what happens when you try to use a frequency-domain
filter to
fix a time-domain problem in your room. It doesn't work."

Scott, why do you say that ?, digital room correction is all about
fixing time-domain problems. It fixes frequency + time domain
problems. Of course, like everything in life, it has its limits.



Jones_r wrote:
Scott, I've tried the Radio Shack SPL meter. If you want, I can give
you the Digital Room Correction filter that I've created with it. It
is horrible!!!. The high frequency is totaly messed and compressed!.

Yes, that's what happens when you try to use a frequency-domain filter to
fix a time-domain problem in your room. It doesn't work.

I have a filter that someone did with an ECM8000 and a Behringer SHARK
DSP110 pre amp, and the result (via headphones) is VERY good, light
years ahead of the filter I got with Radio Shack. But, the Behringer
SHARK DSP110 pre amp first convert the signal to the digital domain
and then to the analog domain, using ADC/DAC of 24bit, which I know is
not neutral (I have the Behringer Feedback Destroyer with the same
ADC/DAC, and a sonic signature can be heard at the higher
frequencies).

Ummm... how can you check room effects with headphones?

I am only correcting for one place, the listening spot.

Then you had better install a rack that bolts your head into that place,
because a quarter-inch away, the response will be totally different.
--scott