Build Karaoke Tracks - AudioShake Developers

Create a Task

Build a complete karaoke package in one API call — an instrumental backing track, a vocal reference, and time-synced lyrics. All three models run in parallel from a single Task.

API Code Examples

Python

import requests

API_KEY = "your_api_key"
HEADERS = {"Content-Type": "application/json", "x-api-key": API_KEY}

response = requests.post(
    "https://api.audioshake.ai/tasks",
    headers=HEADERS,
    json={
        "assetId": "your_asset_id",
        "targets": [
            {"model": "instrumental", "formats": ["wav"]},
            {"model": "vocals", "formats": ["wav"]},
            {"model": "alignment", "formats": ["json"]}
        ]
    }
)

task_id = response.json()["id"]
print(f"Task created: {task_id}")

JavaScript

const API_KEY = "your_api_key";
const headers = { "Content-Type": "application/json", "x-api-key": API_KEY };

const createRes = await fetch("https://api.audioshake.ai/tasks", {
  method: "POST",
  headers,
  body: JSON.stringify({
    assetId: "your_asset_id",
    targets: [
      { model: "instrumental", formats: ["wav"] },
      { model: "vocals", formats: ["wav"] },
      { model: "alignment", formats: ["json"] }
    ]
  })
});

const { id: taskId } = await createRes.json();
console.log(`Task created: ${taskId}`);

cURL

curl -X POST "https://api.audioshake.ai/tasks" \
  -H "Content-Type: application/json" \
  -H "x-api-key: $AUDIOSHAKE_API_KEY" \
  -d '{
    "assetId": "your_asset_id",
    "targets": [
      { "model": "instrumental", "formats": ["wav"] },
      { "model": "vocals", "formats": ["wav"] },
      { "model": "alignment", "formats": ["json"] }
    ]
  }'

Outputs

Target	Role
`instrumental`	Backing track for playback
`vocals`	Reference track for QA and timing
`alignment` (JSON)	Word-level timed text for on-screen lyrics

Use cases

Power karaoke apps with synced lyrics and backing tracks
Publish sing-along experiences on streaming platforms
Batch-process entire song catalogs for karaoke libraries

Stem Separation
Extract additional individual instruments beyond vocals.

Lyric Transcription
Learn more about the transcription model and output format.