# Invert Channel Phase

Invert the phase of one channel (for vocal removal effect)

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

- **Category:** Media

- **Keywords:** audio, phase, invert, stereo, vocal removal, karaoke, channel

## Overview

Inverts the phase of the selected channel (left, right, or both). Commonly used for vocal reduction when later summed to mono or for creative stereo effects. Choose which channel to flip and export in your preferred format.

## Inputs

- **Audio File** (file): Select a stereo audio file
- **Channel to Invert** (select)
- **Output Format** (select)

## When to use

- When you need to reduce or remove vocals from a stereo audio track for karaoke or remixing purposes.
- When experimenting with stereo imaging and phase effects in audio production or sound design.
- When preparing audio files for mono summation to minimize phase cancellation issues in mixing.

## How it works

- Upload your stereo audio file in a supported format such as MP3, WAV, or FLAC.
- Select the channel to invert: left, right, or both channels.
- Choose the output format from options like MP3, AAC, WAV, or others.
- Process the file and download the resulting audio with the inverted phase.

## Use cases

- Creating karaoke tracks by reducing lead vocals in stereo songs for sing-along events.
- Designing unique stereo effects for electronic music or audio experiments in production.
- Preparing audio stems for professional mixing where phase alignment is critical for clarity.

## Frequently asked questions

### What audio file formats can I upload?

You can upload stereo audio files in common formats like MP3, WAV, FLAC, and more, up to 200MB in size.

### Can I invert both channels at the same time?

Yes, you can choose to invert the left channel, right channel, or both channels simultaneously.

### What is phase inversion typically used for?

Phase inversion is often used to cancel out vocals when audio is summed to mono or to create stereo widening effects.

### Will this completely remove vocals from a track?

It can significantly reduce vocals when the track is later played in mono, but effectiveness depends on the original audio mix.

### What output formats are available?

You can export in MP3, AAC, M4A, OGG, Opus, FLAC, or WAV formats to suit your needs.

## Related tools

- [Audio Band-Reject Filter](https://elysiatools.com/en/tools/audio-band-reject-filter): Remove a specific band of frequencies
- [Karaoke Vocal Reducer](https://elysiatools.com/en/tools/audio-karaoke-track): Attempt to remove vocals from a stereo track
- [Audio Mouth Click Finder](https://elysiatools.com/en/tools/audio-mouth-click-finder): Detect-style repair for lip smacks, saliva clicks, mouth ticks, and small voice-over clicks.
- [FFmpeg Audio Noise Reduction](https://elysiatools.com/en/tools/ffmpeg-audio-noise-reduction): Professional audio noise reduction using FFmpeg advanced filters (highpass, afftdn, loudnorm) for optimal audio cleaning
- [Classroom Recording Cleaner](https://elysiatools.com/en/tools/audio-classroom-recording-cleaner): Clean lecture recordings with speech-focused EQ, hum reduction, peak control, and optional long-silence trimming.
- [Audio Filler Word Removal Map](https://elysiatools.com/en/tools/audio-filler-word-removal-map): Combine a timestamped transcript with the audio to mark filler words (um, uh, 嗯, 那个…) and optionally mute or remove them.
- [Audio Notch Filter](https://elysiatools.com/en/tools/audio-notch-filter): Remove a very narrow frequency band (e.g., hum)
- [Audio Remove Silence End](https://elysiatools.com/en/tools/audio-remove-silence-end): Remove silence from the end of an audio file

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- [Bevy Game Engine Samples](https://elysiatools.com/en/samples/bevy-samples): Bevy Rust game engine examples with ECS, 2D/3D graphics, audio, and game mechanics implementations
- [Godot Engine Samples](https://elysiatools.com/en/samples/godot): Godot Engine examples including 2D/3D games, GDScript, C#, and engine features
- [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