Speech Recognition/Dictation Crashing
Steps to resolve the crash:


Turn off enhanced dictation under the dictation system preference pane
Turn off dictation 
Delete en_US.SpeechRecognition/ in /System/Library/Speech/Recognizers/SpeechRecognitionCoreLanguages/
Turn on dictation and enhanced dictation, the recognizer is downloaded again
Kill the speechsynthesisd and speechrecognitiond processes if dictation popup shows loading indefinitely