Format Conversion

AudioSpliter can convert your audio to a different format during the split. Set the outputFormat field to your desired format.

Supported Formats

Format	Extension	Notes
mp3	.mp3	Lossy, most compatible
wav	.wav	Lossless, large files
flac	.flac	Lossless compression
ogg	.ogg	Open-source lossy format
aac	.aac	Modern lossy format

Example: Convert WAV to MP3 During Split

curl -X POST https://api.audiospliter.com/api/v1/splits \
  -H "X-API-Key: as_live_abc123" \
  -H "Content-Type: application/json" \
  -d '{
    "sourceUrl": "https://example.com/recording.wav",
    "splitMode": "duration",
    "segmentDuration": 600,
    "outputFormat": "mp3"
  }'

This takes a WAV recording, splits it into 10-minute segments, and outputs each segment as MP3.

Node.js Example

const response = await fetch('https://api.audiospliter.com/api/v1/splits', {
  method: 'POST',
  headers: {
    'X-API-Key': process.env.AUDIOSPLITER_API_KEY,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    sourceUrl: 'https://example.com/recording.wav',
    splitMode: 'duration',
    segmentDuration: 300,
    outputFormat: 'flac', // Convert to FLAC
  }),
});

const job = await response.json();

Python Example

import requests, os

response = requests.post(
    'https://api.audiospliter.com/api/v1/splits',
    headers={'X-API-Key': os.environ['AUDIOSPLITER_API_KEY']},
    json={
        'sourceUrl': 'https://example.com/recording.wav',
        'splitMode': 'duration',
        'segmentDuration': 300,
        'outputFormat': 'flac',
    },
)

Format Selection Guide

Need	Recommended Format
Smallest file size	mp3 or aac
Lossless quality	flac
Maximum compatibility	mp3
Web audio playback	ogg or aac
Professional editing	wav

Tips

• Omit outputFormat to keep the same format as the source file.
• Converting lossy to lossless (e.g., MP3 to WAV) does not improve quality -- it only increases file size.
• Format conversion adds minimal processing time. The dominant factor is file size and segment count.