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Pulse matrix. A, Schematic of a pulse train consisting of two trapezoid pulses with 1 ms rise and fall times each. Pulse duration is defined as the entire duration of the pulse including rise and fall time; pause duration is defined as the entire silent interval between pulses. B, Pulse matrix. The pulse matrix consists of 49 trains of trapezoid broadband noise pulses. Pulse and pause duration span from 2 to 128 ms in logarithmic intervals. Pulse trains are 512–640 ms long.
