Impulse Response from REW to Sigma Auto Eq
I have run through everything I can find, and have not found information that allowed me to get an export of an impulse response from REW, into Sigma studio/Auto Eq. I have successfully exported FR curves from REW, converted them with the Py script available, and then used them in Auto EQ. It seems most people are either using ARTA, which I have set up but haven't yet purchased because I am not sure I absolutely need it. Or, they are generating filters in REW and then exporting/importing them. This may be newbie stuff but rather than just throw things at the wall until something sticks, I figured I would ask to be pointed in the best direction first.
SS/Auto EQ will work if the IR file is text, one sample per line and no header lines. In REW select the the "Export impulse response as text" option. Then use an editor to delete all the header lines (line 1 thru the * Data start" line), leaving only the samples. This works for me.
Do note that REW (and ARTA I believe) do not include the soundcard and microphone calibration file effects in IR files. They are included in the FR files. Auto EQ also limits the maximum IR time to 10 msec (i.e. 100 Hz). So this is a problem if you want to work with responses below 100 Hz. I stick with FR files for these reasons.
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