I found this thread, and cant find any answers anywhere else, but im also having this problem (sorta).
The voice search works on the first try, but a second attempt causes a "Audio Problem". if i wait about 5 - 10 minutes it works again, but does the same thing (works once > audio problem till i leave it alone).
Other apps do the same thing, and Maluuba assistant wont even work if launched from the home screen widget.
i tried searching for a solution to this on XDA but had no luck, and saw this thread, so itd be pointless to start another.
Im running CM7 (The latest SD Card Build) by Team-B and have the latest version of Voice Search. Im using a Nook Tablet 8GB model
(Heads up: Before anyone suggests it, im NOT rooting, modding or installing anything to the nook. I dont want to void my warranty {already used it once}. I also dont want to brick my nook or install any android variations. thus the reason im using Team-B's sd card version.)
Anyone know how to fix this?