Unable to calibrate Pro Tools MTRX studio soundcard

[Robin Servant]

Hi,

I'm trying to calibrate my new MTRX studio interface with REW and just can't get it to work.

I've setted a loopback from my right output to my mic preamp. I see on the MTRX preamp meters that it receive the 1k tone when I launch the calibration. I also see the signal flowing in my DADman app that the signal is flowing from the output to the input. I am pretty sure I assignated the input correctly.

However, REW doesn't ''receive the input signal for the calibration to occur... I suspect this has to do with the fact that I'm running Dante virtual soundcard ''between'' the MTRX and my computer but I don't understand why.

Anybody has an insight to help me calibrate that soundcard?

thanks!
R

 

[John Mulcahy]

Is there any signal on input channel 2?

 

[Robin Servant]

No, the Right output is going into input 1. I see the meter going up on the card but REW doesnt receive it for some reason...

 

[John Mulcahy]

Does REW appear in the list of apps with permission to access mic inputs?

 

[DanDan]

Hi Robin, do you need this Loopback?

 

[Robin Servant]

John: Yes, REW has the permission to access the mic.

DanDan: I don't necesseraly need it, but since it's in the procedure to calibrate the soundcard, I thought i would be good to follow the manual.

I ve done further tests with a calibration mic, and the same goes for the mic as the loopback: REW doesnt receive the signal of the mic. the channels are routed OK, because i can hear pink noise from ehatever speaker i need to but ther's just no signal from the mic (wich I see the soundcard is receiving) gettin through to REW...

 

[John Mulcahy]

The info suggests REW is getting input data, but the data is all zeroes, e.g. because nothing is getting routed to it or the path is muted somewhere. Worth trying REW directly accessing some other interface (even the mac's built-in audio) to check it can get data from other sources.

 

[DanDan]

Historically ProTools has never played nice with other software. You might be able to do something using the Aggregate Device facility. But personally I would use/borrow a simpler interface or ideally a UMIK-1 and fuggedaboudid.