xkonni, this isn't a logcat-able bug:
The echo issue from CM9 is present again. Basically, when you talk to someone on the phone, they can hear an echo of themselves (note I said themselves, not YOU). You sound fine to them, and they sound fine to you, but each time that person speaks, they hear themselves echoing many times on their end.
Someone said that it wasn't present on 7/22 but WAS on 7/25. I cannot confirm or deny this. However, I was running 7/25 when I encountered it.
I believe you're familiar with this one, as I spoke to you last time when I first discovered it for CM9.
Keep up the great work.