Galaxy Note2's S voice randomly not working

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http://androidforums.com – Hello I've been having this problem with S voice in Note 2 and wondering how to stop it: Randomly when i turn on S voice before I can say anything it says 'I could not hear that, please speak it again' then deactivates. If I press the mic button it will keep giving me that message without even trying to listen to anything. It's basically stuck like this until i restart the phone or go to app manager and clear data. It's very annoying and I wish it just worked consistently. Anyone else have this issue? thanks (General)