AI Cover

AI Cover is voice timbre transfer: convert a song (source_audio_url) into a target voice (reference_audio_url), with optional vocal/accompaniment separation and gain. Same contract as /api/v2/voice/convert — this is a song-cover-flavored alias. Async task; poll for status after submitting.

Base URL: https://api.aiclonevoicefree.com | Auth: Authorization: Bearer sk_...

`POST /api/v2/voice/cover`

Field	Type	Required	Notes
`source_audio_url`	string	✅	Original song audio URL
`reference_audio_url`	string	✅	Target voice reference audio URL
`pitch_shift`	int	⬜	Pitch shift in semitones, default 0
`return_format`	string	⬜	`wav` / `mp3` / `flac`, default `wav`
`enable_separation`	bool	⬜	Separate vocals/accompaniment first, default true
`vocals_gain`	number	⬜	Vocal gain, default 1.0
`accompaniment_gain`	number	⬜	Accompaniment gain, default 0.8
`diffusion_steps`	int	⬜	Diffusion steps, default 50
`length_adjust`	number	⬜	Time stretch, default 1.0
`inference_cfg_rate`	number	⬜	Inference guidance [0-1], default 0.7
`auto_f0_adjust`	bool	⬜	Auto F0 adjustment, default true

Billing

2 credits/second of output (same as voice convert). 402 at submit if insufficient; auto-refunded on failure.

Example

curl -X POST https://api.aiclonevoicefree.com/api/v2/voice/cover \
  -H "Authorization: Bearer sk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "source_audio_url": "https://your-cdn.com/song.mp3",
    "reference_audio_url": "https://your-cdn.com/target-voice.wav",
    "enable_separation": true,
    "pitch_shift": 0
  }'

Response 202 → { "task_id": "...", "status": "pending", "capability": "voice", "action": "vocal-conversion" }

Getting the result

Poll GET /api/v2/tasks/{task_id}; audioUrl holds the result when done. See Tasks.

POST /api/v2/voice/cover

Billing

Example

Getting the result

On this page

`POST /api/v2/voice/cover`