---
title: "Audio File Upload Format"
slug: "audio-file-upload-format"
updated: 2026-06-17T09:10:28Z
published: 2026-06-17T09:10:28Z
canonical: "knowledge.akuvox.com/audio-file-upload-format"
stale: true
---

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

# Audio File Upload Format

Akuvox intercom devices support uploading door-opening tones. The audio file upload format may vary by model.

### **Door Phones**

| Models | Requirements |
| --- | --- |
| S539 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| S538 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| S535 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| X916 | File Format: wav/mp3, no limitation on size |
| X915 | File Format: wav/mp3, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| X910 | File Format: wav; Size: < 200KB; Sample Rate: 16k; Bit Depth: 16 Bits. |
| R29 | File Format: wav, no limitation on size |
| R28 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| R27 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| R26 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| R20A | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| R20B | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| R20K | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| R25 Series | File Format: wav; Size: < 200KB; Sample Rate: 16k; Bit Depth: 16 Bits |
| E12 | File Format: wav, Size: < 200KB, Sample Rate: 8k/16k, Bit Depth: 16 Bits |
| E13 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| E16 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| E18C | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |
| E21 | File Format: wav, Size: < 200KB, Sample Rate: 16k, Bit Depth: 16 Bits |

### Access Control Terminals

| Models | Requirements |
| --- | --- |
| A01/02/03 | File Format: wav, Size: < 200KB |
| A05 | File Format: wav, Size: < 200KB |
| A08 | File Format: wav, Size: < 200KB, Sample Rate:16k, Bit Depth: 16 Bits |

### **Indoor Monitors**

| Models | Requirements |
| --- | --- |
| S567 | File Format: wav/mp3, no limitation on size |
| S565 | File Format: wav, Size: < 250K |
| S563 | File Format: wav/mp3, no limitation on size |
| S562 | File Format: wav, Size: < 250K |
| S560 | File Format: wav, Size: < 250K |
| IT88 | File Format: wav/mp3, no limitation on size |
| C313 | File Format: wav, Size: < 250K |
| C315 | File Format: wav/mp3, no limitation on size |
| C316 | File Format: wav/mp3, no limitation on size |
| C319 | File Format: wav/mp3, no limitation on size |
| X933 | File Format: wav/mp3, no limitation on size |
| X937 | File Format: wav/mp3, no limitation on size |