# Audio High-Pass Filter

Apply a high-pass filter to remove low frequencies

> Canonical page: https://elysiatools.com/en/tools/audio-high-pass-filter

- **Category:** Media

- **Keywords:** audio, filter, highpass, remove low

## Overview

Cuts low-end rumble below the cutoff to clean muddy audio or remove hum.

## Inputs

- **Audio File** (file): Select an audio file
- **Cutoff Frequency (Hz)** (number): 80
- **Order (slope)** (number): 1
- **Output Format** (select)

## When to use

- When audio recordings have low-frequency noise or hum that needs removal.
- To clean up muddy audio by attenuating bass frequencies for better clarity.
- Before audio processing or mixing to isolate and enhance higher frequencies.

## How it works

- Upload an audio file in a supported format like MP3, WAV, or AAC.
- Set the cutoff frequency in Hz to define where the filter starts cutting low frequencies.
- Adjust the order parameter to control the steepness of the filter slope.
- Choose an output format and download the filtered audio file.

## Use cases

- Podcast editing to remove background hum and improve voice clarity.
- Music production to clean up vocal or instrument tracks by reducing low-end rumble.
- Video sound design to enhance audio quality by filtering out unwanted low frequencies.

## Frequently asked questions

### What is a high-pass filter?

A high-pass filter allows frequencies above a cutoff point to pass through while attenuating lower frequencies.

### How does the cutoff frequency affect the audio?

The cutoff frequency sets the threshold below which frequencies are reduced; lower values preserve more bass.

### What does the order parameter control?

The order determines how sharply the filter cuts off frequencies; higher orders result in a steeper slope.

### What audio formats are supported for input and output?

You can upload any audio file, and download in formats like MP3, AAC, M4A, OGG, Opus, FLAC, or WAV.

### Is there a file size limit for uploads?

Yes, the maximum file size for upload is 200 MB.

## Related tools

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- [Karaoke Vocal Reducer](https://elysiatools.com/en/tools/audio-karaoke-track): Attempt to remove vocals from a stereo track
- [Audio Low-Pass Filter](https://elysiatools.com/en/tools/audio-low-pass-filter): Apply a low-pass filter to remove high frequencies
- [Audio Noise Gate](https://elysiatools.com/en/tools/audio-noise-gate): Apply a noise gate to remove low-volume noise
- [Audio Breath Control Editor](https://elysiatools.com/en/tools/audio-breath-control-editor): Detect breaths in speech and naturally crossfade to reduce, remove, or keep them.
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- [Audio Hum Removal](https://elysiatools.com/en/tools/audio-hum-removal): Remove electrical hum (50/60Hz and harmonics) from audio
- [Audio Metadata Compress](https://elysiatools.com/en/tools/audio-metadata-compress): Compress or remove metadata and embedded artwork to reduce file size

## Samples

- [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
- [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free Raw PCM Audio Samples](https://elysiatools.com/en/samples/pcm-samples): Raw PCM s16le audio samples featuring nature ambience and relaxing music for waveform, playback, and conversion workflows

## Related content

- [Audio Restoration, Noise Repair, and Cleanup Tools](https://elysiatools.com/en/hubs/audio-restoration-repair-workflows): Diagnose and repair clicks, hum, clipping, crackle, room sound, hiss, and harshness without promising lossless restoration.