xtra.audio

StereoTool ​

Addon

StereoTool is a paid station addon. Activate it via Addons in the station sidebar.

Professional audio processing for broadcast-quality sound.

StereoTool

Overview ​

StereoTool is a third-party audio processor that provides advanced sound enhancement. It runs in real time on the audio output before encoding, applying multiband compression, stereo enhancement, and other broadcast processing.

Tiers ​

StereoTool is offered in different addon tiers. Higher tiers unlock additional processing capabilities. Select the tier when activating the addon in the station sidebar.

Requirements ​

  • Active StereoTool addon (license managed through the addon system)

Interface ​

StereoTool is integrated as a web interface directly in the station. The processing page shows:

  • Preset library: Browse and select presets in the sidebar
  • StereoTool interface: Embedded web UI for detailed configuration

Presets ​

StereoTool processing is configured through presets. Each preset defines the full processing chain and is activated per station.

VisibilityDescription
PublicShared across projects and available to all stations
PrivateAvailable only within the project that uploaded it

Upload a preset file to add it to the library, then select it on the station's processing page to apply it.

Activation ​

Processing is controlled through the preset mechanism:

  1. Open Sound Processing in the station sidebar
  2. Select a preset from the library
  3. Processing activates with the selected preset

To deactivate processing, deselect the active preset.

Processing Chain ​

StereoTool processes audio after loudness normalization but before encoding:

Audio → EBU R128 → StereoTool → Encoder

Troubleshooting ​

No Audio Output ​

  • Verify the active preset is valid
  • Deactivate StereoTool to confirm source audio works

Distorted Audio ​

  • The preset may be too aggressive for the source material
  • Try a different preset designed for internet streaming

High CPU Usage ​

  • StereoTool processing is CPU-intensive
  • Consider using a lighter preset
  • Contact support if issues persist