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

# Audio Configuration

> File types and codecs supported by the Medera API

## Supported formats

| Format                     | Real-time       | Batch |
| :------------------------- | :-------------- | :---- |
| PCM 16-bit (16 kHz)        | ✓               | ✓     |
| PCM 16-bit (44.1 / 48 kHz) | ✓ (downsampled) | ✓     |
| Opus                       | ✓               | ✓     |
| WAV (PCM)                  | —               | ✓     |
| MP3 (CBR)                  | —               | ✓     |
| M4A / AAC                  | —               | ✓     |
| OGG (Opus)                 | ✓               | ✓     |
| FLAC                       | —               | ✓     |

## Recommended

* 16 kHz 16-bit PCM mono

* Opus at 32 kbps for bandwidth-constrained edges

## Frame size

For real-time, send 20 ms frames (320 samples at 16 kHz).

Anything smaller wastes WS overhead; anything larger inflates latency.