alicloud-ai-audio-cosyvoice-voice-clone

Category: provider

# Model Studio CosyVoice Voice Clone

Use the CosyVoice voice enrollment API to create cloned voices from public reference audio.

## Critical model names

Use `model="voice-enrollment"` and one of these `target_model` values:
- `cosyvoice-v3.5-plus`
- `cosyvoice-v3.5-flash`
- `cosyvoice-v3-plus`
- `cosyvoice-v3-flash`
- `cosyvoice-v2`

Recommended default in this repo:
- `target_model="cosyvoice-v3.5-plus"`

## Region and compatibility

- `cosyvoice-v3.5-plus` and `cosyvoice-v3.5-flash` are available only in China mainland deployment mode (Beijing endpoint).
- In international deployment mode (Singapore endpoint), `cosyvoice-v3-plus` and `cosyvoice-v3-flash` do not support voice clone/design.
- The `target_model` used during enrollment must match the model used later in speech synthesis, otherwise synthesis fails.

## Endpoint

- Domestic: `https://dashscope.aliyuncs.com/api/v1/services/audio/tts/customization`
- International: `https://dashscope-intl.aliyuncs.com/api/v1/services/audio/tts/customization`

## Prerequisites

- Set `DASHSCOPE_API_KEY` in your environment, or add `dashscope_api_key` to `~/.alibabacloud/credentials`.
- Provide a public audio URL for the enrollment sample.

## Normalized interface (cosyvoice.voice_clone)

### Request
- `model` (string, optional): fixed to `voice-enrollment`
- `target_model` (string, optional): default `cosyvoice-v3.5-plus`
- `prefix` (string, required): letters/digits only, max 10 chars
- `voice_sample_url` (string, required): public audio URL
- `language_hints` (array[string], optional): only first item is used
- `max_prompt_audio_length` (float, optional): only for `cosyvoice-v3.5-plus`, `cosyvoice-v3.5-flash`, `cosyvoice-v3-flash`
- `enable_preprocess` (bool, optional): only for `cosyvoice-v3.5-plus`, `cosyvoice-v3.5-flash`, `cosyvoice-v3-flash`

### Response
- `voice_id` (string): use this as the `voice` parameter in later TTS calls
- `request_id` (string)
- `usage.count` (number, optional)

## Op...