High-pass filter¶

Musium includes a built-in high-pass filter that can remove the low end from bass-heavy music. A high-pass filter is useful in situations where your speakers reproduce low frequencies — perhaps even louder than intended due to suboptimal room acoustics — that are unpleasant or unwanted. Especially 2020s albums can be bass-heavy, and taking off the low end can help to allow greater playback volume without making the room sound saturated. Values around 50 Hz are suitable for this use case.

Like volume, the filter cutoff can be configured at runtime, and this functions effectively like a bass boost setting on players with a built-in equalizer, except that the filter in Musium will only remove bass content, it will not boost it. Setting the cutoff to 0 Hz effectively disables the filter.

The high pass filter is not perfect. It has a gain of -3 dB at the cutoff frequency, and a rolloff of -12 dB per octave. For example, at a cutoff frequency of 50 Hz, a 25 Hz tone would be diminished by 15 dB.