[ { "voice": [ "duration/task_recog/duration_single_000.wav" ], "conversations": [ { "from": "human", "value": "Can you determine if the sound is longer than 2.4 seconds? Reply with 'A' if it is longer than 2.4 seconds, 'B' if it is equal to or shorter than 2.4 seconds. Only answer 'A' or 'B'. Do not add any explanation, punctuation, or extra text.