Create audio clips

View Markdown

“Wavelength” (a music sampling app like Splice) lets users preview 30-second clips of full tracks before purchasing.

API

ittybit audio \
  -i https://wavelength-app.com/tracks/beat-42.wav \
  --start 30 \
  --end 60 \
  --format mp3 \
  --quality medium
const task = {
  input: 'https://wavelength-app.com/tracks/beat-42.wav',
  kind: 'audio',
  options: {
    start: 30,
    end: 60,
    format: 'mp3',
    quality: 'medium',
  },
};

const res = await fetch('https://api.ittybit.com/jobs', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${process.env.ITTYBIT_API_KEY}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify(task),
});
const data = await res.json();
import requests

task = {
    "input": "https://wavelength-app.com/tracks/beat-42.wav",
    "kind": "audio",
    "options": {
        "start": 30,
        "end": 60,
        "format": "mp3",
        "quality": "medium",
    },
}

res = requests.post(
    "https://api.ittybit.com/jobs",
    headers={"Authorization": f"Bearer {api_key}"},
    json=task,
)
data = res.json()
TASK='{
  "input": "https://wavelength-app.com/tracks/beat-42.wav",
  "kind": "audio",
  "options": {
    "start": 30,
    "end": 60,
    "format": "mp3",
    "quality": "medium"
  }
}'

curl -X POST https://api.ittybit.com/jobs \
  -H "Authorization: Bearer $ITTYBIT_API_KEY" \
  -H "Content-Type: application/json" \
  -d "$TASK"

This extracts seconds 30 through 60 as an MP3 preview.

CLI

ittybit audio \
  -i beat-42.wav \
  -o preview.mp3 \
  --start 30 \
  --end 60 \
  --quality medium

Multiple previews from one track

Extract the intro, a chorus, and the outro:

ittybit audio \
  -i beat-42.wav \
  -o intro.mp3 \
  --start 0 \
  --end 30 \
  --quality medium

ittybit audio \
  -i beat-42.wav \
  -o chorus.mp3 \
  --start 60 \
  --end 90 \
  --quality medium

ittybit audio \
  -i beat-42.wav \
  -o outro.mp3 \
  --start 180 \
  --end 210 \
  --quality medium

Low-quality previews, high-quality purchase

Serve lossy previews, keep lossless for download:

ittybit audio \
  -i beat-42.wav \
  -o preview.mp3 \
  --start 30 \
  --end 60 \
  --quality low

ittybit audio \
  -i beat-42.wav \
  -o full.flac

From video

Extract an audio clip from a video source:

ittybit audio \
  -i interview.mp4 \
  -o quote.mp3 \
  --start 45 \
  --end 75