Agent skill

Voice Isolator

by elevenlabs in elevenlabs/skills

Remove background noise and isolate vocals/speech from audio using ElevenLabs Voice Isolator (audio isolation) API.

MITAuto-check passedMedia & Creative

Install Voice Isolator

skills CLI
$ npx skills add elevenlabs/skills --skill voice-isolator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install elevenlabs/skills voice-isolator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/elevenlabs/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/voice-isolator .claude/skills/voice-isolator && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
voice-isolator
GitHub stars
482
Token cost
~923 tokens
SKILL.md length
203 words
Files
2 (incl. references)
Skills in repo
8
Repo updated
First seen
Licence
MIT

At a glance

Remove background noise and isolate vocals/speech from audio using ElevenLabs Voice Isolator (audio isolation) API.

  • Cleaning up noisy recordings
  • SKILL.md covers Quick Start, Parameters, Isolating from a URL and Low-Latency PCM Input, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Background ambience from dialogue

What it does

Voice Isolator is an agent skill from elevenlabs/skills. Remove background noise and isolate vocals/speech from audio using ElevenLabs Voice Isolator (audio isolation) API. Use when cleaning up noisy recordings, removing music or background ambience from dialogue, isolating speech from field recordings, preparing audio for transcription, extracting vocals, or any "denoise / clean up / isolate voice" task.

Its SKILL.md is about 920 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/installation.md`). Compatibility notes: Requires internet access and an ElevenLabs API key (ELEVENLABSAPIKEY).

It sits in Media & Creative, covering Text to speech and voice, Transcription and Image editing. It works with ElevenLabs. The repository describes itself as: Collections of skills for building with ElevenLabs. The licence is MIT.

When your agent uses it

  • Cleaning up noisy recordings
  • Background ambience from dialogue
  • Isolating speech from field recordings
  • Preparing audio for transcription

Example prompts

  • “denoise / clean up / isolate voice”
  • “/voice-isolator”

Requirements

  • Python 3
  • A credential in ELEVENLABS_API_KEY
  • Compatibility (from SKILL.md): Requires internet access and an ElevenLabs API key (ELEVENLABS_API_KEY).

What it can do on your machine

Read from SKILL.md and the folder at commit 1d08a4a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are python, javascript and bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Requires internet access and an ElevenLabs API key (ELEVENLABS_API_KEY).

    From compatibility in the SKILL.md frontmatter.

Context cost

Voice Isolator loads about 923 tokens when it runs, and up to ~1.4k if it reads all its reference files. Until then it costs about 92 tokens; SKILL.md has 203 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~92
When it runs · the whole SKILL.md, loaded when a task matches
~923
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from elevenlabs/skills at commit 1d08a4a, republished under its MIT licence (© elevenlabs). 203 words, ~923 tokens.

Download SKILL.mdSave it as .claude/skills/voice-isolator/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
voice-isolator
description
Remove background noise and isolate vocals/speech from audio using ElevenLabs Voice Isolator (audio isolation) API. Use when cleaning up noisy recordings, removing music or background ambience from dialogue, isolating speech from field recordings, preparing audio for transcription, extracting vocals, or any "denoise / clean up / isolate voice" task.
compatibility
Requires internet access and an ElevenLabs API key (ELEVENLABS_API_KEY).
license
MIT

ElevenLabs Voice Isolator

Removes background noise from audio and isolates vocals/speech — useful for cleaning up noisy recordings, prepping audio for transcription, or pulling dialogue out of a mixed track.

Setup: See Installation Guide. For JavaScript, use @elevenlabs/* packages only.

Quick Start

Python
python
from elevenlabs import ElevenLabs

client = ElevenLabs()

with open("noisy.mp3", "rb") as audio_file:
    audio_stream = client.audio_isolation.convert(audio=audio_file)

with open("clean.mp3", "wb") as f:
    for chunk in audio_stream:
        f.write(chunk)
JavaScript
javascript
import { ElevenLabsClient } from "@elevenlabs/elevenlabs-js";
import { createReadStream, createWriteStream } from "fs";

const client = new ElevenLabsClient();

const audioStream = await client.audioIsolation.convert({
  audio: createReadStream("noisy.mp3"),
});

audioStream.pipe(createWriteStream("clean.mp3"));
CLI
bash
elevenlabs audio-isolation convert --audio noisy.mp3 --output clean.mp3

Parameters

ParameterTypeDefaultDescription
audiofile (required)—Audio file with vocals/speech to isolate
file_formatstringotherother for any encoded audio, or pcm_s16le_16 for 16-bit PCM mono @ 16kHz little-endian (lower latency)

Isolating from a URL

python
import requests
from io import BytesIO
from elevenlabs import ElevenLabs

client = ElevenLabs()

audio_url = "https://example.com/noisy.mp3"
response = requests.get(audio_url)
audio_data = BytesIO(response.content)

audio_stream = client.audio_isolation.convert(audio=audio_data)

with open("clean.mp3", "wb") as f:
    for chunk in audio_stream:
        f.write(chunk)

Low-Latency PCM Input

If you already have raw 16-bit PCM mono @ 16kHz, passing file_format="pcm_s16le_16" skips decoding and reduces latency:

python
audio_stream = client.audio_isolation.convert(
    audio=pcm_bytes,
    file_format="pcm_s16le_16",
)

Supported Formats

Any common encoded audio/video container works as input (MP3, WAV, M4A, FLAC, OGG, WebM, MP4, etc.). Response is a streamed MP3 by default.

Common Workflows

  • Clean up interview/podcast recordings — strip room tone, HVAC, traffic before editing.
  • Prep noisy audio for Speech-to-Text — isolate voice first, then pass through speech_to_text.convert() for better transcription accuracy.
  • Extract dialogue from mixed tracks — pull vocals out of a track with music/SFX.
  • Pre-processing for Voice Changer — isolate the source voice before applying voice transformation.

Error Handling

python
try:
    audio_stream = client.audio_isolation.convert(audio=audio_file)
except Exception as e:
    print(f"Voice isolation failed: {e}")

Common errors:

  • 401: Invalid API key
  • 422: Invalid parameters (e.g. wrong file_format for the supplied audio)
  • 429: Rate limit exceeded

References

© elevenlabs, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in voice-isolator of elevenlabs/skills.

  • SKILL.md
  • references/installation.md

Open the folder on GitHubat commit 1d08a4a

Compare with similar skills

Voice Isolator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Voice Isolator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Voice Isolator this skillelevenlabs/skills482—~923Automated safety check: PassMIT
Elevenlabs Core Workflow Bjeremylongshore/tons-of-skills-marketplace2.8k—~1.6kAutomated safety check: PassMIT
HyperFrames Media Useheygen-com/hyperframes60k—~2.4kAutomated safety check: PassApache-2.0
Media Useedenfunf/reelmimic1.9k1 repos~2kAutomated safety check: PassMIT
Hyperframesscott-fryxell/brayness125—~3.2kAutomated safety check: PassMIT
Hyperframes Mediacosmicstack-labs/mercury-agent-skills476—~1.7kAutomated safety check: PassMIT

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  • Elevenlabs Core Workflow B

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More from elevenlabs/skills

All 8 skills in this repo
  • Dubbing

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  • Speech Engine

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  • Agents

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    482 GitHub stars~6.5k tokensUpdated yesterday
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  • Setup API Key

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Works with

Questions about Voice Isolator

What does Voice Isolator do?

Remove background noise and isolate vocals/speech from audio using ElevenLabs Voice Isolator (audio isolation) API. Voice Isolator is an agent skill from elevenlabs/skills. Remove background noise and isolate vocals/speech from audio using ElevenLabs Voice Isolator (audio isolation) API.

When should I use Voice Isolator?

Voice Isolator fits situations like: cleaning up noisy recordings; background ambience from dialogue; isolating speech from field recordings; preparing audio for transcription.

How do I install Voice Isolator in Claude Code?

Run `npx skills add elevenlabs/skills --skill voice-isolator -a claude-code`. Or copy the skill folder (voice-isolator in elevenlabs/skills) into .claude/skills/voice-isolator in your project. Claude Code loads it when a task matches its description.

How do I install Voice Isolator in Codex?

Run `npx skills add elevenlabs/skills --skill voice-isolator -a codex`. Or copy the skill folder (voice-isolator in elevenlabs/skills) into .agents/skills/voice-isolator in your project. Codex loads it when a task matches its description.

Can I use Voice Isolator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add elevenlabs/skills --skill voice-isolator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/voice-isolator, .gemini/skills/voice-isolator, .github/skills/voice-isolator and .opencode/skills/voice-isolator in your project.

What does Voice Isolator need to run?

SKILL.md names no scripts, command-line tools or credentials: Voice Isolator is instructions for the agent only. Our summary lists: Python 3; A credential in ELEVENLABS_API_KEY. Compatibility (from SKILL.md): Requires internet access and an ElevenLabs API key (ELEVENLABS_API_KEY)..

Does Voice Isolator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Voice Isolator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Voice Isolator use?

Voice Isolator is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Voice Isolator use?

About 923 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 495 tokens, read only when the agent opens those files.

What are the alternatives to Voice Isolator?

Skills that share tags, products or a category with Voice Isolator: Elevenlabs Core Workflow B (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), HyperFrames Media Use (heygen-com/hyperframes, 60k stars), Media Use (edenfunf/reelmimic, 1.9k stars) and Hyperframes (scott-fryxell/brayness, 125 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Voice Isolator?

elevenlabs (a GitHub organization) maintains it in elevenlabs/skills, which has 482 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 9, 2026.

Source: elevenlabs/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.