configuration of REW with a babyface RME and a mac M1 pro

Malx51 · Jul 8, 2024

hello, I am having difficulty calibrating REW with my config. Is there an incompatibility between the software and my Babyface sound card? in fact at the time of calibration, in the 3 columns "out", "in", and "ref in", only the "out" column modulates. I use this sound card and Mac config with smaart and everything works well. Could you help me correctly configure my config please? thank you in advance.

John Mulcahy · Jul 8, 2024

Can you post a screenshot of your REW soundcard preferences?

Malx51 · Jul 9, 2024

hello. here are 2 screenshots with on the first this message which tells me that my volume is set to 0 ( !? )

Capture d’écran 2024-07-09 à 12.51.47.png

Capture d’écran 2024-07-09 à 12.52.16.png

and on the second my sound card config. Thanks for your help

John Mulcahy · Jul 9, 2024

Check the input volume settings for the Babyface in the mac's Audio Midi Setup utility.

Malx51 · Jul 9, 2024

here are 2 snapshots of the Audio Midi Setup utility config. the volumes are linked to the totalmix software which controls the sound card. for me everything is ok. but REW doesn't want to know anything!

Capture d’écran 2024-07-09 à 16.02.18.png

Capture d’écran 2024-07-09 à 16.03.36.png

John Mulcahy · Jul 9, 2024

What is selected on the REW "Input", Analog 1/2 or ADAT 1-8?

Malx51 · Jul 9, 2024

it is selected "Mic/Line 1"

DanDan · Jul 9, 2024

I think Mic/Line 1 is the onboard Mac input.

John Mulcahy · Jul 9, 2024

Please click the "Generate debug file" button on the REW soundcard preferences and attach the file that produces.

Malx51 · Jul 9, 2024

Here is the soud card debug file. thank's.

Malx51 · Jul 9, 2024

DanDan said:
I think Mic/Line 1 is the onboard Mac input.

No it isn't for me . the babyface is selected in preferences so it's the babyface input Mic 1.

John Mulcahy · Jul 9, 2024

Please open the Signal generator and play a 1 kHz sine tone then open the Levels window and post a screenshot of that. This is the button for it:

Malx51 · Jul 9, 2024

as you can see there is no modulation in the "In" and "Ref In" level window..

John Mulcahy · Jul 9, 2024

That -484.66 dBFS level means REW is getting digital zero as data from the input, you can also see that at the bottom of the REW window where the input bit monitor shows all bits stuck at zero. That can happen if REW does not have permission to access the mic, so worth checking that. It can also happen for digital inputs that are not receiving data, but you should be on an analog input unless there is something strange going on so permissions seems more likely.

Malx51 · Jul 10, 2024

it's strange ! I tried REW, on the same computer, with my old EDIROL UA5 sound card and it doesn't work any better. Does the problem come from REW? I'll try another Mac this evening if that works better. If there is a problem with access authorization to the inputs of the sound card why is there none on the outputs because I have the sound coming out of the babyface. Furthermore, for your information, I use this babyface with other measurement software and it works without problems. Thanks for your help.

John Mulcahy · Jul 10, 2024

Macs apply mic permissions on a per-application basis. REW should automatically get access as that permission is part of the code signature, but if it doesn't have access check the Mac's privacy settings.

Malx51 · Jul 10, 2024

Thank you very much, it actually seems to work now!!! I hadn't thought about that at all! Perfect!! thanks a lot for your help

configuration of REW with a babyface RME and a mac M1 pro

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