All was generally well in the sound dpt, but over the past couple of weeks I have been getting a very 'tin-like' sound from my PowerBook in general and continuous 'larsen-like' shrill feedback thhrough the speakers. Sometimes the machine is just 'on' and it will start wisthling by itself. At present it is also very hard to simply listen to a DVD as the feedback forces you to turn the volume quite low.
I tried to set up the mike level right down, but it doesn't seem to make any difference.
Any ideas? Any software resets or hardware tests?
Bop 'til you drop
MB Pro 13 | i5 | 16 Gigs of shiny DDR RAM | 1TB SSD - we have arrived...
iMac 27 i5 16Gig 1TB
iPad Air 64Gig
Time Capsule 1TB | 4TB connected HD
iPhone 6: "Too big, but bloody fast..." & a bunch of ill fitting ear buds
Canon 7D proper camera with nice L glass and Lightroom 4