12. A voice synthesizing apparatus comprising: a first receiver configured to receive first utterance control information generated on detecting a start of a manipulation on an input device by a user, wherein the start of the manipulation is an initial interaction with the input device by the user; a first synthesizer configured to synthesize and output, in accordance with a timing of the reception of the first utterance control information, a first voice including a first phoneme in a phoneme sequence of a voice; a second receiver configured to receive second utterance control information generated on detecting a completion of the manipulation on the input device by the user, wherein the completion of the manipulation is a completion of the initial interaction with the input device by the user; and a second synthesizer configured to synthesize and output, in accordance with a timing of the reception of the second utterance control information, a second voice including a succeeding phoneme in the phoneme sequence, the succeeding phoneme being subsequent to the first phoneme in the phoneme sequence.
12. A voice synthesizing apparatus comprising: a first receiver configured to receive first utterance control information generated on detecting a start of a manipulation on an input device by a user, wherein the start of the manipulation is an initial interaction with the input device by the user; a first synthesizer configured to synthesize and output, in accordance with a timing of the reception of the first utterance control information, a first voice including a first phoneme in a phoneme sequence of a voice; a second receiver configured to receive second utterance control information generated on detecting a completion of the manipulation on the input device by the user, wherein the completion of the manipulation is a completion of the initial interaction with the input device by the user; and a second synthesizer configured to synthesize and output, in accordance with a timing of the reception of the second utterance control information, a second voice including a succeeding phoneme in the phoneme sequence, the succeeding phoneme being subsequent to the first phoneme in the phoneme sequence. 17. The voice synthesizing apparatus according to claim 12 , wherein when the first phoneme represents a consonant: the first voice is synthesized and output in accordance with the timing of the reception of the first utterance control information, and the second voice is synthesized and output in accordance with the timing of the reception of the second utterance control information; and wherein when the phoneme sequence represents one vowel: the voice including the phoneme sequence is synthesized and output in accordance with the timing of the reception of the first utterance control information, and the voice including the phoneme sequence is not synthesized and output in accordance with the timing of the reception of the second utterance control information.