Apply lowpass filter to your audio
Upload your audio file.
Choose frequency above which to cut.
Click Apply to filter audio.
Download filtered audio.
Remove hiss, sibilance, and high-frequency noise! Lowpass filters let low frequencies through while blocking highs. Perfect for reducing harsh audio or creating lo-fi vintage effects.
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Supports: MP3, WAV, FLAC, AAC, OGG, M4A and more
Old recordings or cheap mics add high-frequency hiss. Lowpass filters clean that up without affecting the core audio. Audio restoration specialists in 2026 use this for digitizing old tapes.
Some voices have harsh, piercing highs. Gentle lowpass filter smooths them out without sounding muffled. Useful for aggressive rap vocals or shouty rock singing.
Free online tool with secure processing