Using REW for Testing Speakers to enable Crossover Design (using Xsim).

[Nordo]

I've been using REW for years to refine my home theatre - room treatment, speaker placement, sub placement, etc.

However I am currently designing some TL speakers (woofer and a mid/full range driver).
Once I complete the cabinets and install the drivers, I need to test the seperate installed speakers for SPL (frd file) and Impedance (zma file).
Is there a tutorial/instruction somewhere that explains this process?

I believe with the impedance part I need a simple cable rig incorporating a resistor.
As I have done in the past, I will be using my laptop.
The only thing I had to connect to the laptop in the past was my miniDSP UMIK-1 microphone into a USB port.
But this time I need to connect to both the audio input and the output.
Is there a USB cable that can pick both the audio input and output?
The laptop does have a Headphone port (as well as the USB 3.0 port and a HDMI port), so maybe I have to use that for the audio out?

Any help would be greatly appreciated.

 

[sm52]

For impedance measurement, read this thread https://www.avnirvana.com/threads/sound-card-calibration-and-impedance-circuit.6810/
As far as SPL measurement is concerned, the REW has generator button and an RTA meter button. But for Xsim, you most likely need to get an IR measurement. Measure button. After measuring impedance or IR, export the measurements as text. Then rename the resulting files to zma and frd.

 

[Nordo]

For impedance measurement, read this thread https://www.avnirvana.com/threads/sound-card-calibration-and-impedance-circuit.6810/
As far as SPL measurement is concerned, the REW has an oscillator button and an RTA meter button. But for Xsim, you most likely need to get an IR measurement. Measure button. After measuring impedance or IR, export the measurements as text. Then rename the resulting files to zma and frd.

Thanks. That's great.