On 03/08/2023 04:23, Roland Turner via groups.io wrote:
With respect to those sound cards which *do* provide mic bias, it would appear that it's a non-issue for Softrocks anyway;
Roland,
Maybe things have changed.
My understanding is that if there is a polarising voltage then the mic input is mono.
In the older laptops this same socket could be switched to a stereo input with no voltage.
Some "professional" sound devices have the 48 volts, usually switchable.
As mentioned often newer devices have a single headset jack with mono input. I do not know if there are any that may be set to stereo input.
These circumstances may be avoided by using a USB sound device, just be certain it has a stereo line input.
73 Alan G4ZFQ
