Toggle/adjust noise to "Performance calibration"

Performance calibration provides option for “Simulated real world audio: Samples taken from your testing dataset and layered on top of artificial background noise”.

But that noise cannot be configured.

In my case my training and real use-case audio volume is really low. The default artificial background noise completely overpowers my signal, which makes this calibration impossible to use.

I would like to have ability to disable the noise in calibration, or manually adjust the noise level.

Thank you.