Takes an audio or video file and transposes it by a number of semitones from -12...
https://medien.halowerk.com/v1/pitch-shiftOverview
Takes an audio or video file and transposes it by a number of semitones from -12 to +12 while keeping tempo and running time, using the Rubber Band library through ffmpeg. With preserve_formants on, voices keep their natural timbre instead of sounding like cartoon characters — useful for practice tracks in another key or light voice anonymisation. Pitch-shifting is not a secure anonymisation: it can often be reversed, and the answer says so.
Protocol
x402 (POST)
Price
$0.0030
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
medien
Source
bazaar
Indexed
2026-10-30 14:43:14
Health
Status
healthy
Latency (p50)
214ms
Uptime (30d)
100.0%
Reliability Score
87/100
Last Checked
2026-10-30 18:22:35
Last Healthy
2026-10-30 18:22:35
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"body": {
"duration_minutes": 1,
"semitones": -3,
"source": {
"url": "https://static.deepgram.com/examples/Bueller-Life-moves-pretty-fast.wav"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-30 18:22:35 | healthy | 402 | 541ms | |
| 2026-10-30 17:20:47 | healthy | 402 | 214ms | |
| 2026-10-30 16:22:17 | healthy | 402 | 54ms | |
| 2026-10-30 15:18:24 | healthy | 402 | 95ms |