Voice Extractor

Isolate and clean up vocal audio by removing background noise and non-speech elements.

Overview

The Voice Extractor node (internally audio-isolation) uses ElevenLabs voice isolation to separate speech from background noise, music, and other non-vocal audio. It takes any audio input and outputs a clean version containing only the isolated voice. This is useful as a preprocessing step before feeding audio into other speech-related nodes.

Configuration

Field	Type	Default	Description
Label	string	"Voice Extractor"	Display name for the node on the canvas

No additional configuration is required. The node processes the input audio automatically.

Inputs & Outputs

• Input: in – audio file containing speech mixed with background noise or music
• Output: audio – cleaned audio file with isolated voice (URL)

  Best Practices

• Use this node before Text to Speech voice cloning to ensure the reference audio is clean and free of background noise.
• Place it upstream of the Transcribe node when working with noisy audio to improve transcription accuracy.
• Works best when the input contains recognizable speech – purely instrumental or non-vocal audio will produce minimal output.
• For best results, the input audio should have at least some audible speech content above the noise floor.

Common Use Cases

• Cleaning up interview or field recording audio before editing
• Preprocessing noisy audio before transcription
• Extracting vocal tracks from music or mixed audio for voice cloning
• Removing background noise from podcast recordings
• Isolating dialogue from video audio tracks before dubbing

Tips

• The node processes the entire audio input – there is no option to select a time range. Use the Trim Audio processing node first if you only need a specific segment.
• Output quality depends heavily on input quality. Audio where speech is heavily buried under noise may produce artifacts.
• This node outputs audio, not data. For word-level timing information, use the Forced Alignment node instead.