Comment 14 for bug 1414706

recording from external mic?
- No sound.
recording silence or random buzz noise?
- random buzz noise. Please refer to the attachment external-mic-sound.wav
recording from internal mic although the external is selected?
- No. Please see the following description[1]

[1]
select internal mic, unplug external mic: there is recorded sound
select internal mic, plug external mic: there is recorded sound
select external mic, unplug external mic: silent (mic amplitude > 100%)
select external mic, plug external mic: ramdom buzz similar to the attachment external-mic-sound.wav