11. The system of claim 10 , wherein the operations comprise determining, by the one or more computers, a quantity of alternative transcriptions for the utterance to provide for display, the quantity of alternative transcriptions being fewer than all of the speech recognition candidates for the utterance; and wherein providing the subset of speech recognition candidates comprises providing a subset of the speech recognition candidates having the determined quantity of speech recognition candidates.
11. The system of claim 10 , wherein the operations comprise determining, by the one or more computers, a quantity of alternative transcriptions for the utterance to provide for display, the quantity of alternative transcriptions being fewer than all of the speech recognition candidates for the utterance; and wherein providing the subset of speech recognition candidates comprises providing a subset of the speech recognition candidates having the determined quantity of speech recognition candidates. 12. The system of claim 11 , wherein the utterance is a first utterance; and wherein the operations comprise, after providing the transcription and the subset of speech recognition candidates for the utterance, providing a transcription for a second utterance and a set of alternative transcriptions for the second utterance, wherein the set of alternative transcriptions for the second utterance is different from the quantity determined for the first utterance, and wherein the quantity of alternative transcriptions for the second utterance is less than a quantity of speech recognition candidates determined for the second utterance.