Author Archives: Andrew

The Wolfson Sound Card Noise Gate and 24 bit Data

Posted on March 31, 2018 by Andrew

Recently I did some measurements on the Wolfson card to get an idea of the dynamic range. When playing a 24bit file @ -100dBfs there was no output from the card. This was perplexing, as the noise floor is some … Continue reading →

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Improving PSU filtering on the Wolfson Raspberry Pi Sound Card

Posted on March 25, 2018 by Andrew

I’ve been thinking about elegant ways to improve the PSU filtering of the Wolfson card and to ensure that any switching noise from the relatively noisy power supplies Raspberry Pi’s are usually used with is effectively filtered. There’s plenty of possible … Continue reading →

Posted in Engineering, Music, Streaming | 6 Comments

BBC micro:bit Modified tilt sensor in Python

Posted on May 8, 2016 by Andrew

This is a modified version of the previous tilt sensor application, this one tidies the code a little for readability, adding more comments and adds the ability to adjust the sensitivity. Enjoy!  

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