Install the belt CLI skill: npx skills add belt-sh/cli

ElevenLabs Voice Isolator

Remove background noise and isolate voices from audio via inference.sh CLI.

Quick Start

Requires inference.sh CLI (belt). Install instructions

belt login

# Isolate voice from noisy audio
belt app run elevenlabs/voice-isolator --input '{"audio": "https://noisy-recording.mp3"}'

Supported Formats

Examples

Clean Up a Recording

# Remove background noise from a podcast recording
belt app run elevenlabs/voice-isolator --input '{"audio": "https://noisy-podcast.mp3"}'

Clean Interview Audio

# Isolate speaker from café background noise
belt app run elevenlabs/voice-isolator --input '{"audio": "https://cafe-interview.mp3"}'

Extract Vocals from Music

# Separate vocals from instrumental
belt app run elevenlabs/voice-isolator --input '{"audio": "https://song.mp3"}'

What It Removes

• Ambient/environmental noise
• Background music
• Reverb and echo
• Wind noise
• Traffic and crowd noise
• Electrical hum/buzz
• Other non-voice sounds

Workflow: Clean → Transcribe

# 1. Isolate voice from noisy recording
belt app run elevenlabs/voice-isolator --input '{
  "audio": "https://noisy-meeting.mp3"
}' > cleaned.json

# 2. Transcribe the clean audio
belt app run elevenlabs/stt --input '{
  "audio": "<cleaned-audio-url>",
  "diarize": true
}'

Workflow: Clean → Voice Change

# 1. Clean up the audio
belt app run elevenlabs/voice-isolator --input '{
  "audio": "https://raw-recording.mp3"
}' > cleaned.json

# 2. Transform the voice
belt app run elevenlabs/voice-changer --input '{
  "audio": "<cleaned-audio-url>",
  "voice": "george"
}'

Workflow: Clean → Add to Video

# 1. Clean the voiceover
belt app run elevenlabs/voice-isolator --input '{
  "audio": "https://raw-voiceover.mp3"
}' > cleaned.json

# 2. Merge with video
belt app run infsh/media-merger --input '{
  "media": ["video.mp4", "<cleaned-audio-url>"]
}'

Use Cases

• Podcasts: Clean up recordings with background noise
• Interviews: Remove café/office ambient sounds
• Music: Extract vocals for remixes or karaoke
• Video Production: Clean dialogue audio
• Archival: Restore old or degraded recordings
• Meetings: Improve recording clarity
• Voice Cloning Prep: Clean source audio for better cloning results

Related Skills

# ElevenLabs voice changer (transform voice after cleaning)
npx skills add inference-sh/skills@elevenlabs-voice-changer

# ElevenLabs STT (transcribe clean audio)
npx skills add inference-sh/skills@elevenlabs-stt

# ElevenLabs TTS (generate clean speech from text)
npx skills add inference-sh/skills@elevenlabs-tts

# Full platform skill (all apps)
npx skills add inference-sh/skills@infsh-cli

Browse all audio apps: belt app list --category audio