Hey guys i own a Tascam us-122mkii an i got the same screeching issues. Has anyone here found a solution or work-around this issue? Given postings on Forums I read, I'm not too optimistic that a solution will come from them. I have dropped an email to Tascam Support and waiting for a reply. But then it will come back again after anything between 0 and 30 minutes. Actually with the 'old' driver the problem occured and then went away after 10-30 seconds, with the new firmware/driver it seems when it happens it doesn't go away anymore, only until after the USB is disconnected/connected. I had pretty old drivers (2.00) so I updated to all the latest stuff includuing the firmware, but hasn't fixed the issue. When I happened again on my next show, I decided to further investigate and finally found the Tascam US122 to be causing. At first time it happened I blamed the local area for having some disturbing RF interference or so.

I first blamed my mixer and sound modules for having failures, that caused my two recent performances to be a nervous nightmare.

it took a while before I discovered that the problem was related to the new laptop in combination with the US122. Getting what is here described as the screeching sound every now and then. After having used the US122MKII without any issues for a long time on my Toshiba with Vista laptop, I started to have issues with my new laptop which is a Dell running Windows7 SP1.

Tascam us 122 mk2 windows 10 driver