# Kokoro TTS (British English)

> A high-quality British English text-to-speech model offering natural and expressive voice synthesis.


## Overview

- **Endpoint**: `https://fal.run/fal-ai/kokoro/british-english`
- **Model ID**: `fal-ai/kokoro/british-english`
- **Category**: text-to-audio
- **Kind**: inference
**Tags**: speech



## Pricing

- **Price**: $0.02 per 1000 characters

For more details, see [fal.ai pricing](https://fal.ai/pricing).

## API Information

This model can be used via our HTTP API or more conveniently via our client libraries.
See the input and output schema below, as well as the usage examples.


### Input Schema

The API accepts the following input parameters:


- **`prompt`** (`string`, _required_)
  - Examples: "Ladies and gentlemen, welcome aboard. Please ensure your seatbelt is fastened and your tray table is stowed as we prepare for takeoff."

- **`voice`** (`VoiceEnum`, _required_):
  Voice ID for the desired voice.
  - Options: `"bf_alice"`, `"bf_emma"`, `"bf_isabella"`, `"bf_lily"`, `"bm_daniel"`, `"bm_fable"`, `"bm_george"`, `"bm_lewis"`
  - Examples: "bf_alice"

- **`speed`** (`float`, _optional_):
  Speed of the generated audio. Default is 1.0. Default value: `1`
  - Default: `1`
  - Range: `0.1` to `5`



**Required Parameters Example**:

```json
{
  "prompt": "Ladies and gentlemen, welcome aboard. Please ensure your seatbelt is fastened and your tray table is stowed as we prepare for takeoff.",
  "voice": "bf_alice"
}
```

**Full Example**:

```json
{
  "prompt": "Ladies and gentlemen, welcome aboard. Please ensure your seatbelt is fastened and your tray table is stowed as we prepare for takeoff.",
  "voice": "bf_alice",
  "speed": 1
}
```


### Output Schema

The API returns the following output format:

- **`audio`** (`File`, _required_):
  The generated music
  - Examples: {"url":"https://fal.media/files/kangaroo/4wpA60Kum6UjOVBKJoNyL_tmpxfrkn95k.wav"}



**Example Response**:

```json
{
  "audio": {
    "url": "https://fal.media/files/kangaroo/4wpA60Kum6UjOVBKJoNyL_tmpxfrkn95k.wav"
  }
}
```


## Usage Examples

### cURL

```bash
curl --request POST \
  --url https://fal.run/fal-ai/kokoro/british-english \
  --header "Authorization: Key $FAL_KEY" \
  --header "Content-Type: application/json" \
  --data '{
     "prompt": "Ladies and gentlemen, welcome aboard. Please ensure your seatbelt is fastened and your tray table is stowed as we prepare for takeoff.",
     "voice": "bf_alice"
   }'
```

### Python

Ensure you have the Python client installed:

```bash
pip install fal-client
```

Then use the API client to make requests:

```python
import fal_client

def on_queue_update(update):
    if isinstance(update, fal_client.InProgress):
        for log in update.logs:
           print(log["message"])

result = fal_client.subscribe(
    "fal-ai/kokoro/british-english",
    arguments={
        "prompt": "Ladies and gentlemen, welcome aboard. Please ensure your seatbelt is fastened and your tray table is stowed as we prepare for takeoff.",
        "voice": "bf_alice"
    },
    with_logs=True,
    on_queue_update=on_queue_update,
)
print(result)
```

### JavaScript

Ensure you have the JavaScript client installed:

```bash
npm install --save @fal-ai/client
```

Then use the API client to make requests:

```javascript
import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/kokoro/british-english", {
  input: {
    prompt: "Ladies and gentlemen, welcome aboard. Please ensure your seatbelt is fastened and your tray table is stowed as we prepare for takeoff.",
    voice: "bf_alice"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);
```


## Additional Resources

### Documentation

- [Model Playground](https://fal.ai/models/fal-ai/kokoro/british-english)
- [API Documentation](https://fal.ai/models/fal-ai/kokoro/british-english/api)
- [OpenAPI Schema](https://fal.ai/api/openapi/queue/openapi.json?endpoint_id=fal-ai/kokoro/british-english)

### fal.ai Platform

- [Platform Documentation](https://docs.fal.ai)
- [Python Client](https://docs.fal.ai/clients/python)
- [JavaScript Client](https://docs.fal.ai/clients/javascript)