Can Audacity Export Opus Audio Files?

Audacity natively supports encoding and exporting audio to the Opus format without requiring external libraries or third-party plugins. Starting with the release of Audacity 3.2, native Opus support was fully integrated into the software via the built-in libopus library. This article outlines Audacity's Opus capabilities, details the exact steps to export Opus files, and explains the configurable encoding settings available to users.

Native Opus Support in Audacity

In older versions of Audacity (prior to version 3.2), users had to manually install and configure the optional FFmpeg library to export files in modern formats like Opus. However, modern releases of Audacity feature built-in support for Opus encoding and decoding.

When you export to Opus in modern Audacity, the software wraps the Opus audio stream into an .opus (Ogg Opus) container. Because this functionality is bundled directly into the software, no additional software, command-line tools, or FFmpeg installations are required.

How to Export Opus Audio in Audacity

To natively export your project or track as an Opus file, follow these steps:

1. Open your audio project in Audacity (version 3.2 or newer).
2. Click File in the top menu bar.
3. Hover over Export and select Export Audio... (or press Ctrl + Shift + E on Windows/Linux, Cmd + Shift + E on macOS).
4. In the export dialog, open the Format dropdown menu and select Opus (OggOpus) Files.
5. Choose a destination folder and enter a file name.
6. Adjust your encoding parameters in the format options section (see details below).
7. Click Export to render and save the file.

Configurable Opus Export Settings

Audacity provides several parameters to balance file size and audio fidelity during the export process:

• Quality / Bitrate: Opus is exceptionally efficient. Bitrates typically range from 6 kbps to 510 kbps. For standard stereo speech, 32–64 kbps is generally sufficient. For high-fidelity stereo music, 96–160 kbps provides transparent, near-lossless perceived quality.
• Complexity: Sets the computational effort used by the encoder (ranging from 0 to 10). A higher complexity value optimizes audio quality at your chosen bitrate at the cost of slightly slower rendering times. Setting this to 10 is recommended for standard exports.
• Frame Duration: Controls the packet size in milliseconds (typically 2.5 ms to 60 ms, with 20 ms being the standard default). Smaller durations reduce latency for real-time applications, while larger durations marginally improve compression efficiency for saved files.
• Bitrate Mode: Allows you to choose between Variable Bitrate (VBR), Constrained VBR (CVBR), and Constant Bitrate (CBR). VBR is selected by default as it allocates bits dynamically based on the complexity of the audio.

Summary

Audacity does not require extra software or complex setup to create Opus files. As long as you are using Audacity 3.2 or newer, you can directly import, edit, and natively export Ogg Opus audio with complete control over bitrates and compression settings.