---
title: "AMR to MP3: Convert Old Phone and Call Recordings"
description: "Open AMR voice recordings from older phones and call recorders and save them as MP3. Runs on your device, with narrowband AMR tested."
canonical: https://toolsugar.com/tools/amr-to-mp3
image: https://toolsugar.com/og.png
---

# AMR to MP3

ToolSugar converts AMR recordings from older phones, voice recorders and call apps into MP3 in your browser. We have tested narrowband AMR, the common .amr kind, which holds 8 kHz mono speech. Wideband .awb files are not offered, since we have not tested them. Files stay on your device. The first run downloads a 32 MB engine from a public CDN.

Runs on your device

## How it works

1. Copy the .amr file from your phone to the device you are using.
2. Choose the file here.
3. Leave the quality setting alone. At 8 kHz our MP3 comes out at 64 kbps, even at the default of 192.
4. Convert and download the MP3.

## Key facts

- **Tested with**: Narrowband AMR at 8 kHz mono and about 12 kbps.
- **MP3 bitrate**: 64 kbps at 8 kHz in our tests, whichever higher setting you pick.
- **Not tested**: Wideband AMR in .awb files, so the file picker does not offer them.
- **Sound**: An MP3 made from AMR cannot sound better than the source, which is telephone-quality speech.

## Common uses

- Rescuing voice memos from an old phone.
- Playing call recordings on a computer that has no AMR support.
- Attaching a recording to an email or a case file in a format others can open.

## Questions

### Why will my computer not play AMR?

AMR was designed for mobile networks, and many desktop players never added it. MP3 solves that.

### Why is the MP3 so much bigger than the AMR?

Our AMR test file uses about 12 kbps and its MP3 uses 64 kbps, about five times the data. The extra size adds no detail.

[Read the AMR to MP3 guide](https://toolsugar.com/blog/how-to-convert-audio-files)

## Related tools

- [WhatsApp Audio to MP3](https://toolsugar.com/tools/whatsapp-audio-to-mp3)
- [Noise Remover](https://toolsugar.com/tools/noise-remover)
- [WMA to MP3](https://toolsugar.com/tools/wma-to-mp3)
- [Audio Converter](https://toolsugar.com/tools/audio-converter)