I am using an external mic and the beta version -003 for SSB. Even the slightest tap or shuffle on the desk with my QMX+ causes the VOX to trip. I am confident the external mic is not causing the VOX to trip. Would Hans spur removal still work if I removed the QMX+ internal mic and would that get rid of the unwanted VOX trips? Or do you think Hans could isolate the internal mic from the VOX detection in firmware?
I noticed the same issue, but raising the VOX Threshold to about 35 or higher completely resolved the issue, and it was still plenty sensitive for my voice (though this probably depends on the microphone being used).? I'm pretty sure it was the internal mic triggering the vox - pressing an encoder button would always trigger it.
There was a change in??which prevented accidental VOX activation when pressing any buttons, by activating a timer that ignored microphone sounds for a short delay after button presses.?
I think it is a reasonable request to make, for the VOX to act only on the external microphone input, not the "noise canceled" version which takes input from the internal mic. So I will add that to my list.??
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If you want to remove the internal mic, everything should work fine - Hans didn't need the internal mic signal for the noise removal, he just needed an A/D converter in the same group.
I'm not 100% sure this is correct, Stan. Having the internal mic in place may also feed in some noise from the power supply, to the ADC pin, which may be part of the noise cancellation. I am not sure that the noise cancellation will work the same way if the internal microphone is removed. So I suggest NOT doing that. For now, set the threshold higher so it does not activate too easily; and I will amend the firmware so that VOX acts on the raw input, not noise cancelled.??
