Transcribe AMR to text, free
Upload an AMR recording, like the ones from old mobile phones, and get the text with each speaker and their time. There’s no need to convert it. No account: the first 10 minutes of each file.
Drop your audio or video here, or choose a file
MP3, M4A, WAV, OGG and OPUS (WhatsApp voice notes), MP4, MOV, WEBM… Up to 200 MB.
Free, no account needed: the first 10 minutes of each file, 3 a day. The file is deleted when it’s done and the result after 24 hours.
What an AMR is
AMR is a codec created for speech on mobile phone networks. It compresses heavily at the expense of quality: in its most common version it sounds like a phone call. For years it was the format of voice recordings on mobile phones.
Where they usually come from
AMR files are usually recordings from years ago:
- Voice recorders on button phones and early smartphones.
- Some call recording apps on Android.
- Voice messages and MMS saved on the phone.
- Backups of old phones or of their memory card.
What to expect
At phone quality, clear voices are transcribed well, but there are more mistakes than with a modern recording:
- Proper names and numbers are the first to go wrong: check them by listening to that minute.
- If several people talk at once, they’re harder to separate.
- You gain nothing by converting it to MP3 or WAV first: lost quality doesn’t come back.
How to do it
- 1
Upload the AMR
Drag it into the tool on this page or choose it from your computer, up to 200 MB.
- 2
Wait a moment
Echo detects the language, writes down what’s said and separates each speaker.
- 3
Copy or download the text
With times and speakers or just the text, to paste anywhere or save as TXT.
Frequently asked questions
How do I get recordings off an old phone?
Connect the phone to your computer with a USB cable or take out its memory card and look for a folder such as “Sounds” or “Recordings”. If the phone allows it, you can also send them over Bluetooth.
Do I have to convert the AMR?
No. The tool accepts it directly, and converting it doesn’t improve the sound.
Is it worth transcribing such an old recording?
Yes, if you can understand it when you listen. The text lets you find what you’re looking for without hearing the whole recording; check names and numbers.
By format
Try it with your next meeting.
Create your account in a minute or ask us for a demo for your team.
