Rational Acoustics Noise Stick

The Noise Stick can be plugged into a phantom-powered microphone input, and it generates pink noise.
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$89

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Rational Acoustics | www.rationalacoustics.com Rational Acoustics has launched its first acoustic test and measurement accessory product to be designed and distributed under the Rational Acoustics brand name. The Noise Stick can be plugged into a phantom-powered microphone input, and it generates pink noise.

The Noise Stick is hand-built in the U.S. exclusively for Rational Acoustics by PMP Audio Works and reportedly features hand-matched transistors, 1 percent tolerance resistors and a Linear Feedback Shift Register (LFSR) random-number generator that provides a pseudorandom signal with statistical properties and without any audible repeats. The output of the Noise Stick’s random-number generator drives a hand-tuned filter bank that delivers a pink spectrum that is nominally flat within +/- 0.5 dB from 20 Hz to 20 kHz on a fractional-octave analyzer.