> ## Documentation Index
> Fetch the complete documentation index at: https://slng.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Orpheus

> Browse Orpheus English voices on SLNG with audio samples, emotion-control tags, and recommended use cases for natural conversational speech synthesis.

Orpheus by CanopyLabs is a low-latency text-to-speech model hosted on SLNG infrastructure. It supports 8 English voices and built-in emotion control, letting you shape how the voice sounds without post-processing.

Select a voice by passing its `voice` ID in your request body. Optionally set an `emotion` to change the delivery style.

```json theme={null}
{
  "voice": "tara",
  "prompt": "Hello from SLNG and Orpheus.",
  "emotion": "happy"
}
```

## Emotion control

Orpheus supports an `emotion` parameter that changes the delivery style of any voice. When omitted, the voice uses its default neutral tone.

| Emotion | Description | Sample |
| - | - | - |
| `neutral` | Default, balanced delivery | <audio preload="metadata" aria-label="Tara - neutral" src="https://slng.mintlify.site/voices/samples/orpheus/orpheus-en-tara-neutral.wav">Your browser does not support the audio element.</audio> |
| `happy` | Upbeat, warm, and positive | <audio preload="metadata" aria-label="Tara - happy" src="https://slng.mintlify.site/voices/samples/orpheus/orpheus-en-tara-happy.wav">Your browser does not support the audio element.</audio> |
| `sad` | Subdued, empathetic tone | <audio preload="metadata" aria-label="Tara - sad" src="https://slng.mintlify.site/voices/samples/orpheus/orpheus-en-tara-sad.wav">Your browser does not support the audio element.</audio> |
| `angry` | Firm, intense delivery | <audio preload="metadata" aria-label="Tara - angry" src="https://slng.mintlify.site/voices/samples/orpheus/orpheus-en-tara-angry.wav">Your browser does not support the audio element.</audio> |
| `surprised` | Excited, astonished tone | <audio preload="metadata" aria-label="Tara - surprised" src="https://slng.mintlify.site/voices/samples/orpheus/orpheus-en-tara-surprised.wav">Your browser does not support the audio element.</audio> |

## Voices

| Voice ID | Name | Sample | Gender | Age | Tone | Use Case |
| - | - | - | - | - | - | - |
| `dan` | Dan | <audio preload="metadata" aria-label="Dan" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/54e24db8-83c0-4359-b199-31d63e0965d9-d7351ed0.wav">Your browser does not support the audio element.</audio> | masculine | Adult | Friendly, Casual | Tutorials, Explainer Videos, Chatbots |
| `jess` | Jess | <audio preload="metadata" aria-label="Jess" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/f0cd09fc-600d-4450-8d38-c2174a5ed40b-7478bed5.wav">Your browser does not support the audio element.</audio> | feminine | Young Adult | Energetic, Youthful | Social Content, Ads, Upbeat Narration |
| `leah` | Leah | <audio preload="metadata" aria-label="Leah" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/4b797c3c-76a2-4030-88ef-f259edb5ca4f-398c4c4a.wav">Your browser does not support the audio element.</audio> | feminine | Adult | Warm, Gentle | Wellness Apps, Audiobooks, Meditation |
| `leo` | Leo | <audio preload="metadata" aria-label="Leo" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/a589f802-900f-457a-ab01-53a4858ca10c-260f4364.wav">Your browser does not support the audio element.</audio> | masculine | Adult | Authoritative, Deep | News, Corporate Narration, Documentaries |
| `mia` | Mia | <audio preload="metadata" aria-label="Mia" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/544077b3-980b-49c0-99d5-3862fb6664b0-425a1ed4.wav">Your browser does not support the audio element.</audio> | feminine | Adult | Professional, Articulate | E-learning, Corporate Training, Presentations |
| `tara` | Tara | <audio preload="metadata" aria-label="Tara" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/1cadc4f0-6e64-470e-8cea-3c2b4792ef4f-eb512b2e.wav">Your browser does not support the audio element.</audio> | feminine | Adult | Conversational, Clear | Podcasts, AI Assistants, Interviews |
| `zac` | Zac | <audio preload="metadata" aria-label="Zac" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/1a336afc-cc09-43db-8d9c-8d0f6ded15d0-735920d6.mp3">Your browser does not support the audio element.</audio> | masculine | Adult | Enthusiastic, Dynamic | Sports, Gaming, Promos |
| `zoe` | Zoe | <audio preload="metadata" aria-label="Zoe" src="https://assets.slng.ai/voice-previews/slng/canopylabs/orpheus:en/0d744d65-3d49-4fef-98e9-6575965b5b51-5b53c17f.wav">Your browser does not support the audio element.</audio> | feminine | Adult | Calm, Soothing | Relaxation Apps, Gentle Narration |


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