Speech input device, speech input method, and recording medium

A speech input device, comprising:

• an obtaining unit which obtains a speech uttered by a speaker included in one or more speakers;
• a storage which stores the speech obtained by the obtaining unit;
• a trigger input unit which receives a trigger;
• an utterance start detector which detects a start position of the speech stored in the storage, when the trigger input unit receives the trigger, the start position being a position at which utterance of the speech has started;
• a speaker identification unit which identifies the speaker of the speech from the one or more speakers based on at least first timing and second timing, the first timing being timing at which the trigger input unit has received the trigger, the second timing being temporally different from the first timing and being timing indicating the start position of the speech detected by the utterance start detector;
• and
• an utterance timing registration unit which registers at least a condition indicating which one of the first timing and the second timing is earlier,
• wherein the condition is stored in one of the storage and the utterance timing registration unit, and
• the speaker identification unit identifies the speaker of the speech from the one or more speakers based on the first timing, the second timing, and plural items of registration information registered by the utterance timing registration unit and each indicating a temporal position of the second timing with respect to the first timing.