> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ai-stats.phaseo.app/llms.txt
> Use this file to discover all available pages before exploring further.

# STT (Speech to Text)

> Call /audio/transcriptions with the PHP SDK.

**Method**: `$client->generateTranscription(...)` or `$client->createTranscription(...)`

### Example

```php theme={null}
<?php

require 'vendor/autoload.php';

use AIStats\Sdk\AIStats;

$client = new AIStats(getenv('AI_STATS_API_KEY'));
$response = $client->generateTranscription([
    'model' => 'openai/gpt-4o-transcribe',
    'audio_url' => 'https://example.com/audio.mp3', // or 'audio_b64' for base64 data
    'language' => 'en'
]);
echo $response['text'] ?? '';
```

### Key parameters

* `model` (required): Transcription-capable model id.
* `audio_url` or `audio_b64` (required): Audio data (URL or base64).
* `language`: Hint language code (e.g., `en`).
* `prompt`: Optional context to improve accuracy.
* `temperature` (0–2): Sampling randomness.
* `response_format`: `json`, `text`, `srt`, `verbose_json`, etc.

### Returns

AudioTranscriptionResponse