# octave-2

{% columns %}
{% column width="66.66666666666666%" %}
{% hint style="info" %}
This documentation is valid for the following list of our models:

* `hume/octave-2`
  {% endhint %}
  {% endcolumn %}

{% column width="33.33333333333334%" %} <a href="https://aimlapi.com/app/hume/octave-2" class="button primary">Try in Playground</a>
{% endcolumn %}
{% endcolumns %}

An advanced text-to-speech model with improved emotional understanding, support for 11 languages, and sub-200 ms audio generation. It provides more reliable pronunciation of complex and uncommon inputs.

## Setup your API Key

If you don’t have an API key for the AI/ML API yet, feel free to use our [Quickstart guide](https://docs.aimlapi.com/quickstart/setting-up).

## API Schema

## POST /v1/tts

>

```json
{"openapi":"3.0.0","info":{"title":"AIML API","version":"1.0.0"},"servers":[{"url":"https://api.aimlapi.com"}],"paths":{"/v1/tts":{"post":{"operationId":"_v1_tts","requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","properties":{"model":{"type":"string","enum":["hume/octave-2"]},"text":{"type":"string","minLength":1,"maxLength":500000,"description":"The text content to be converted to speech."},"voice":{"type":"string","enum":["Vince Douglas","Male English Actor","Ava Song","Campfire Narrator","TikTok Fashion Influencer","Colton Rivers","Literature Professor","Booming American Narrator","Imani Carter","Terrence Bentley","Nature Documentary Narrator","Alice Bennett","Sitcom Girl","Unserious Movie Trailer Narrator","Articulate ASMR British Narrator","Big Dicky","English Children's Book Narrator","Sebastian Lockwood","Donovan Sinclair","Booming British Narrator","Relaxing ASMR Woman","Lady Elizabeth","Male Protagonist","Tough Guy","French Chef","Spanish Instructor","Charming Cowgirl"],"default":"Vince Douglas","description":"Name of the voice to be used."},"format":{"type":"string","enum":["wav","mp3"],"default":"wav","description":"Audio output format. MP3 provides good compression and compatibility, PCM offers uncompressed high quality, and FLAC provides lossless compression."},"stream":{"type":"boolean","enum":[false],"default":false}},"required":["model","text"],"title":"hume/octave-2"}}}},"responses":{"200":{"content":{"application/json":{"schema":{"type":"object","properties":{"audio":{"type":"string","format":"uri"},"meta":{"type":"object","nullable":true,"properties":{"usage":{"type":"object","nullable":true,"properties":{"credits_used":{"type":"number","description":"The number of tokens consumed during generation."},"usd_spent":{"type":"number","description":"The total amount of money spent by the user in USD."}},"required":["credits_used","usd_spent"]}},"description":"Additional details about the generation."}},"required":["audio"]}},"audio/wav":{"schema":{"type":"string","format":"binary","description":"Audio stream"}}}}}}}}}
```

## Code Example

{% tabs %}
{% tab title="Python" %}
{% code overflow="wrap" %}

```python
import requests
import json

# Insert your AI/ML API key instead of <YOUR_AIMLAPI_KEY>:
api_key = "<YOUR_AIMLAPI_KEY>" 
base_url = "https://api.aimlapi.com/v1"

headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json",
}

data = {
    "model": "hume/octave-2",
    "text": "It is a fast and powerful language model. Use it to convert text to natural sounding spoken text.",
    "voice": "Relaxing ASMR Woman",
}

response = requests.post(f"{base_url}/tts", headers=headers, json=data)
response.raise_for_status()

result = response.json()
print(json.dumps(result, indent=2, ensure_ascii=False))
```

{% endcode %}
{% endtab %}

{% tab title="JaveScript" %}
{% code overflow="wrap" %}

```javascript
import axios from "axios";

// Insert your AI/ML API key instead of <YOUR_AIMLAPI_KEY>:
const apiKey = "<YOUR_API_KEY>";
const baseURL = "https://api.aimlapi.com/v1";

const headers = {
  Authorization: `Bearer ${apiKey}`,
  "Content-Type": "application/json",
};

const data = {
  model: "inworld/tts-1",
  text: "It is a fast and powerful language model. Use it to convert text to natural sounding spoken text.",
  voice: "Deborah",
};

const main = async () => {
  const response = await axios.post(`${baseURL}/tts`, data, { headers });
  console.log(response);
};

main().catch(console.error);
```

{% endcode %}
{% endtab %}
{% endtabs %}

<details>

<summary>Response</summary>

{% code overflow="wrap" %}

```
{
  "audio": {
    "url": "https://cdn.aimlapi.com/generations/hippopotamus/1769604037348-b2b0235e-e813-462d-904e-632803a698b4.wav"
  },
  "meta": {
    "usage": {
      "credits_used": 12222
    }
  }
}
```

{% endcode %}

</details>

Listen to the audio sample we generated (\~ 1.8 s):

{% embed url="<https://drive.google.com/file/d/1a4dW8Uz4VcxtOsgmcYF-ejzgMsGya0pP/view>" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.aimlapi.com/api-references/speech-models/text-to-speech/hume-ai/octave-2.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.