High-Pass Audio Filter Online
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Audio High-Pass Filter
Reduce low-frequency content below a chosen cutoff. Use a second-order Butterworth high-pass filter to shape a recording while keeping its duration and channels.
- Choose a low-frequency cutoff
- Apply a gradual Butterworth roll-off
- Process both mono and stereo sources
Start below the useful content
Raise the cutoff gradually while listening. A high setting can remove vocal body, bass notes and other wanted low-frequency material.
Reduce rumble selectively
The filter attenuates frequencies, not specific sources. It may help with low rumble but also affects music or speech occupying that range.
Distinguish filtering from DC correction
A high-pass filter attenuates a band of low frequencies. Remove DC Offset instead subtracts a constant mean value from each channel.
Check the overall balance
After removing low energy, the track may sound clearer or thinner. Compare at a consistent playback level before deciding the setting is useful.
Technical references: Web Audio API specification