UK English enhanced dictation very poor accuracy
I have upgraded my 2013 MacBook Air from Mountain Lion to Mavericks, and am having problems with Enhanced Dictation in UK English. While 'normal' dictation works very well, with very good transcription accuracy, the Enhanced version is extremely poor - to the point of being virtually useless. French works very well - but UK English does not.
It is almost as if the download from Apple is corrupt in some way (I have deleted and re-downloaded serveral times in case it was a problem specific to my download).
Things I have tried so far:
- Deleting the downloaded packages and reinstalling them
- Testing internal and external microphone
If I uncheck Enhanced dictation, the accuracy is excellent. If I check it, the quality plummets.
Has anyone else seen this?
Any solutions?
Thanks!
MacBook Air, OS X Mavericks (10.9)