Simple DIY Low Pass and High Pass Filters

I needed a simple way to filter some sound effects and pass the bass notes through to the next stage of the project. I could resample the sounds in software, or pass it through a through a commercial module. But I needed something small, simple and cheap - preferably something I could build myself and put on a breadboard as part of the project.

Found these two videos from Afrotechmods on YouTube. He always does a great job of explaining electronics, and these two videos gave me the info I needed to start designing and building my own low pass filters.





These are the simplest, passive style filters, But their simplicity is just what I needed, just cut off the treble and keep the bass, no need for an equalizer with sliders, no power supplies etc. Just two components per filter -  a resister and a capacitor - my kind of circuit.

 There are more detailed tutorials, like humanharddrive's, but these two videos gave me what I needed to start researching.

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