10. A dictation device for generating text based on a voice utterance and lip movement associated with the voice utterance, comprising: an audio input device that receives an audio signal representing the voice utterance; a video input device that receives a video signal representative of the lip movement; a controller configured according to instructions stored in a memory, the controller configured to: generate a first dictation based on the audio signal and assign a first conversion value based on a first set of conversion criteria; generate a second dictation based on the video signal and assign a second conversion value based on a second set of conversion criteria; and generate a variable text conversion value based on the first conversion value and the second conversion value and generate a third dictation based on the variable text conversion value, wherein the controller is configured to prioritize either the first conversion value or the second conversion value by a predetermined setting, wherein the controller generates the variable text conversion value based on the first conversion value when a number of syllables in a word in first dictation is greater than a threshold, and based on the second conversion value when the number of syllable in the word in first dictation is equal or less than the threshold.
10. A dictation device for generating text based on a voice utterance and lip movement associated with the voice utterance, comprising: an audio input device that receives an audio signal representing the voice utterance; a video input device that receives a video signal representative of the lip movement; a controller configured according to instructions stored in a memory, the controller configured to: generate a first dictation based on the audio signal and assign a first conversion value based on a first set of conversion criteria; generate a second dictation based on the video signal and assign a second conversion value based on a second set of conversion criteria; and generate a variable text conversion value based on the first conversion value and the second conversion value and generate a third dictation based on the variable text conversion value, wherein the controller is configured to prioritize either the first conversion value or the second conversion value by a predetermined setting, wherein the controller generates the variable text conversion value based on the first conversion value when a number of syllables in a word in first dictation is greater than a threshold, and based on the second conversion value when the number of syllable in the word in first dictation is equal or less than the threshold. 15. The dictation device of claim 10 , wherein: the first set of conversion criteria includes pre-registered data representing a value associated with the user voice; and the second set of conversion criteria includes pre-registered data representing a value associated with the user voice.