# Audio Goniometer

Render a polar stereo image to visualize width and panning

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

- **Category:** Media

- **Keywords:** audio, goniometer, stereo, polar, visualize

## Overview

Uses FFmpeg avectorscope in polar mode for a goniometer-style display.

## Inputs

- **Audio File** (file): Select an audio file
- **Image Size** (text): e.g., 600
- **Draw Mode** (select)
- **Zoom** (number)

## When to use

- When you need to check the stereo balance of an audio mix for proper imaging.
- For visualizing panning effects in stereo audio files during production or mastering.
- In educational settings to demonstrate stereo field concepts using audio examples.

## How it works

- Upload an audio file in a supported format, such as MP3 or WAV.
- Optionally configure settings like image size, draw mode (dot, line, or anti-aliased line), and zoom level.
- The tool processes the audio using FFmpeg's avectorscope filter in polar mode to create the visualization.
- Download the resulting polar stereo image file for analysis or reference.

## Use cases

- Audio engineers analyzing stereo mixes to identify balance issues or phase problems.
- Music producers verifying the panning of individual tracks in a multitrack session.
- Educators creating visual aids for teaching stereo imaging and audio spatialization.

## Frequently asked questions

### What audio file formats are supported?

The tool accepts common audio formats compatible with FFmpeg, such as MP3, WAV, and AAC, up to 200 MB in size.

### How do I interpret the goniometer image?

The polar plot shows the stereo field; points near the center represent mono signals, while spread indicates stereo width and panning.

### Can I customize the image appearance?

Yes, you can adjust the image size, choose between dot, line, or anti-aliased line draw modes, and set a zoom level from 0.1 to 10.

### What is the purpose of the draw mode options?

Draw mode affects how audio data is plotted: dots for discrete points, lines for continuous traces, or anti-aliased lines for smoother visuals.

### Is there a limit on audio file length?

The tool focuses on file size (up to 200 MB) rather than length, but longer files may take more time to process.

## Related tools

- [Audio Waveform Generator](https://elysiatools.com/en/tools/audio-waveform-generator): Generate a waveform image from an audio file
- [Image to Spectrogram Audio](https://elysiatools.com/en/tools/image-to-spectrogram-audio): Convert a bitmap image into reconstruction-first audio designed to reappear in a spectrogram, then export the audio and a verification spectrogram preview together.
- [Audio Spectrogram Generator](https://elysiatools.com/en/tools/audio-spectrogram-generator): Generate a spectrogram image from an audio file or a video audio track
- [Image Sequence to Video](https://elysiatools.com/en/tools/image-sequence-to-video): Convert uploaded image files or a ZIP archive of frames into a video, sorted naturally by filename
- [Album Art Extractor](https://elysiatools.com/en/tools/audio-album-art-extractor): Extract the album art from an audio file
- [Audio Vectorscope](https://elysiatools.com/en/tools/audio-vectorscope): Visualize stereo audio with a Lissajous vectorscope display
- [Cover Art Embed](https://elysiatools.com/en/tools/cover-art-embed): Embed cover artwork without re-encoding media.
- [Convert GIF to WebM](https://elysiatools.com/en/tools/gif-to-webm): Convert GIF images to WebM video format with modern compression and web optimization

## 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 Analysis and Visualization Tools](https://elysiatools.com/en/hubs/audio-analysis-and-visualization-tools): Visualize audio, inspect stereo, diagnose signal and timing, and check files before delivery.