A filter picks some sounds. It lets fast sounds go through. It stops slow sounds. This helps music sound good. It can even help pictures look sharp. 
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🖼️ Images & Media (5)
High-pass filter.jpg
CR high pass filter.svg
Active high-pass filter (I order).svg
75 Hz HPF on Smaart.jpg
High Pass Filter Example.jpg
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Content adapted from Wikipedia
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Readability: FK 13.5
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Vital Level 5