# ADAFRUIT I2S AUDIO BONNET - Noise

**URL:** <https://forum.core-electronics.com.au/t/adafruit-i2s-audio-bonnet-noise/8428>\
**Category:** Support\
**Created:** [21 September 2020 00:58 UTC](https://forum.core-electronics.com.au/t/adafruit-i2s-audio-bonnet-noise/8428 "2020-09-21T00:58:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Rob136002](https://avatars.discourse-cdn.com/v4/letter/r/59ef9b/32.png) [@Rob136002](https://forum.core-electronics.com.au/u/Rob136002)\
**Post date:** [21 September 2020 00:58 UTC](https://forum.core-electronics.com.au/t/adafruit-i2s-audio-bonnet-noise/8428/1 "2020-09-21T00:58:40Z")

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Hi there,

I purchased your ADAFRUIT I2S AUDIO BONNET FOR RASPBERRY PI + Rasp Pi Zero.

Once all connected I have some noise on the audio, Crackles etc  
I’ve tried two power supplies. An iPhone charger and a Samsung fast charge charger 5 amp.

What can I do to clear up the sound? How much power does the Pi need to power the Bonnet?

Thanks

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**Author:** ![Bryce](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/bryce/32/3631_2.png) [@Bryce](https://forum.core-electronics.com.au/u/Bryce)\
**Post date:** [22 September 2020 00:47 UTC](https://forum.core-electronics.com.au/t/adafruit-i2s-audio-bonnet-noise/8428/2 "2020-09-22T00:47:13Z")

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Hey Rob,

Have you tried powering the Pi from a battery bank? It seems strange, but the noise from the socket can actually have a direct effect on the output of the Pi’s GPIO (however slight) otherwise, you can add a capacitor or an inline noise filter to try and smooth your output signal.

Bryce  
Core Electronics | Support