Recording Software Screen
In the top right-hand corner of the sonar recording software screen is a microphone level meter but it's switched off by default. Click it to activate it and speak into the microphone. If the level meter starts flashing, great, but if not we need to switch it on somewhere else too. Don't click the level meter lots of times, as you'll lose track of whether it's on or off - its setting isn't clearly marked in the software.