Sound quality of my SumvisionM18 (3 yrs old) is superb apart from the microphone recording which (besides the 8k frequency limit) has a bad crackling. Can be heard with my voice here:
And with my ?piano?(huh!) here:
I am wondering is this is normal with S1 or with Sumvisions. I suspect it is mechanical fault of mic. Isn't it unlikely that just that bit of the software/firmware has got mangled?
If I bought another M18 might it have a better mic? Or can the mic be replaced easy enough?