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The Metronome module consists of a Texas Instruments SRC4192 Asynchronous Sample Rate Converter chip (ASRC) and a Crystek high-precision oscillator (24.576MHz, 25ppm).

With one I²S input and one I²S output, the fully configurable ASRC allows you to shift the input sample rate to a higher or lower output sample rate. Combined with the precision on board oscillator, the Metronome will practiaclly eliminate digital jitter of the I²S data stream. Configuration is done via the on-board dip switches, or by remote switches using the provided pads.