Measuring DSP implemented (JRiver) crossover

Greetings all,

I have implemented a simple two-way (for learning purposes) crossover in DSP of JRiver. It clearly works as verified by turning it on and off and listening to the different drivers, but I cannot find in JRiver documentation how to input the measurement signal from REW to JRIver, so I can measure the speaker. Both JRiver and REW are installed on the same computer.

Any help or reference to JRiver documentation would be appreciated.

Kindest regards,

M
 
Do you have both line output and input on your PC / device? Use a loopback cable and get REW to play to jRiver, which will output to Line out, then loop that to Line in as your measurement device for REW which should show the electrical transfer function of your crossover / filters.

If you don't have a loopback option. You'll need to record the output of the REW generated sweep into jRiver (can jRiver output to a file?) Then play the recorded file into REW (source from file not mic when you "record" a sweep).
 
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Hi kaameelis,

thank you for your suggestion.

I was thinking about Dave's proposal, and if I were to connect Line Out to Line In, I could not connect the speakers via the amplifier. There appears to be something called virtual cable, but your suggestion seems cleaner.

Kindest regards,

M
 
You can install the JRiver WDM driver and choose that driver within REW as the output. Then all the sweeps from REW will run trough JRiver and from there to amps and speakers. You may need to run REW in Java mode for that to work though.
There is another option within JRiver with it's "Open Live" option but the WDM driver (a virtual audio driver that you can use to play/route all Windows music, e.g. Youtube, Netflix, you name it, trough JRiver) makes it quite easy to do measurements like the ones you're after.
 
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Hi CharlieLaub,

thank you for your reply.

The "loopback" device is, what contemplated. I take it that VB-cable refers to a virtual cable as I mentioned above, I do not understand the "live input" term as I am unfamiliar with the different DSP implementations, since I just started yesterday with this attempt. Hence my question here.

Kindest regards,

M