# Audio Phaser

Apply a phaser effect

> Canonical page: https://elysiatools.com/en/tools/audio-phaser

- **Category:** Media

- **Keywords:** audio, phaser, effect, modulation

## Overview

Adds moving phase-shifted notches for a sweeping, spacey tone using the ffmpeg aphaser filter.

## Inputs

- **Audio File** (file): Select an audio file
- **Input Gain** (number)
- **Output Gain** (number)
- **Delay (ms)** (number)
- **Decay** (number)
- **Speed (Hz)** (number)
- **Phase Type** (select)
- **Output Format** (select)

## When to use

- When adding psychedelic or swirling effects to guitar or synth tracks in music production.
- To enhance vocals with a modulated, ethereal quality for podcasts or songs.
- For sound design in film or games to create dynamic, atmospheric audio textures.

## How it works

- Upload an audio file in a supported format like MP3, WAV, or AAC.
- Adjust parameters such as input gain, output gain, delay, decay, speed, and phase type (Triangle or Sine).
- Select the desired output format from options including MP3, WAV, FLAC, and more.
- Process the file to apply the phaser effect and download the result.

## Use cases

- Enhancing guitar solos in rock music with a classic phaser sweep for added depth.
- Processing vocal tracks to create dreamy, atmospheric effects in electronic music.
- Generating unique sound effects for video games or film scores to build immersive audio.

## Frequently asked questions

### What audio formats are supported for input?

The tool accepts common audio formats including MP3, WAV, AAC, M4A, OGG, Opus, and FLAC.

### How can I control the intensity of the phaser effect?

You can adjust input gain, output gain, delay, decay, speed, and choose between Triangle or Sine phase types.

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

Yes, the audio file must be under 200 MB.

### Can I process multiple audio files simultaneously?

No, the tool processes one audio file at a time per operation.

### What is the default output format?

The default output format is MP3, but you can select from various options like WAV, AAC, or FLAC.

## Related tools

- [Audio Chorus](https://elysiatools.com/en/tools/audio-chorus): Apply a chorus effect
- [Audio Flanger](https://elysiatools.com/en/tools/audio-flanger): Apply a flanger effect
- [Audio Gated Reverb](https://elysiatools.com/en/tools/audio-gated-reverb): Apply a reverb effect that is cut off abruptly
- [Audio Reverse Reverb](https://elysiatools.com/en/tools/audio-reverse-reverb): Apply a reverb effect that builds up before the sound
- [Audio Ring Modulator](https://elysiatools.com/en/tools/audio-ring-modulator): Apply ring modulation for a metallic, bell-like sound
- [Audio Robotize](https://elysiatools.com/en/tools/audio-robotize): Apply a robot voice effect (pitch and bit crush)
- [Audio Tremolo](https://elysiatools.com/en/tools/audio-tremolo): Add a tremolo effect (amplitude modulation)
- [Audio Vocoder](https://elysiatools.com/en/tools/audio-vocoder): Apply a vocoder effect using a carrier and modulator

## 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