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Chromecast Audio Output Noise

Posted 26th February 2016 at 12:11 PM by rjm
Updated 27th February 2016 at 01:18 AM by rjm

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Measured at 24/96 with my Asus Xonar STX soundcard (~ -147 dB noise floor)

The Chromecast Audio output noise powered with the included USB wall wart supply is -130 dB at 1 kHz, rising gradually at lower frequencies and showing some switching power supply noise peaks at 4763 Hz and higher multiples, never exceeding about -120 dB.

This is respectable performance given its price point.

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