---
title: "Transcription – Supported File Types"
slug: "transcription-supported-file-types"
tags: ["supported file", "transcription supported file", "transcription", "supported files", "Supported File Types", "Supported file type"]
updated: 2025-05-14T16:22:27Z
published: 2025-05-14T16:22:27Z
---

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

# Transcription – Supported File Types

## AWS File Types

Reveal transcribes audio and video files into linked searchable text through AWS, which supports the below file types:

| .amr* | .flac | .m4a | .mp3 |
| --- | --- | --- | --- |
| .mp4 | .ogg** | .wav | .webm** |

***Amazon Transcribe supports both Adaptive Multi-Rate Wideband (AMR-WB) and Adaptive Multi-Rate Narrowband (AMR-NB) codecs. **Amazon Transcribe supports the Opus codec.

> [!NOTE]
> Note
> 
> Although Reveal Review can transcribe FLAC and AMR file types, they are not currently supported by our in-browser media player.

## Transcription Tips

The following link provides a list of supported languages for Reveal's transcription service: [Comprehensive List of Languages Supported](https://docs.aws.amazon.com/transcribe/latest/dg/supported-languages.html). There is no limitation to Transcribe service calls.

For best results:

- Use a lossless format. You can choose either FLAC, or WAV with PCM 16-bit encoding.
- Use a sample rate of 8,000 Hz for telephone audio.

## Related

- [About Ask](/about-ask.md)
- [Reveal - Supported File Formats for Review](/reveal-supported-file-formats-for-review.md)
- [Translate (Translation)](/translate-translation.md)
- [Translation - Supported Languages](/translation-supported-languages.md)
- [Analyze and Search Emotional Intelligence](/analyze-and-search-emotional-intelligence.md)