How do I accurately convert my AMR files to closed captions? 
Sonix uses the latest automated transcription technology to convert your audio files (*.amr) to closed captions. Follow these six steps and see how magical it is:
Step 1
Sign up for a free Sonix trial account—includes 30 minutes of free AMR to captions conversion.
Step 2
Upload the Adaptive Multi-Rate Codec File file(s) (*.AMR) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Step 3
Choose the language spoken in the uploaded AMR file. We support over 50 different languages including Russian, Chinese, Spanish, and English. Click the 'Start Transcribing Now' button.
Step 4
Sonix will then automatically transcribe the audio from your AMR file and convert it to a simple text format. Grab a cupcake, it will take only a few minutes.
Step 5
Use the Sonix AudioText Editor to polish your transcript before we convert it to a caption file. Simply type in your browser to correct any words in your transcript.
Step 6
Click the 'Export' button. Choose either 'Subrip subtitle file (.srt)' or 'WebVTT file (.vtt)' from the dropdown to download the closed caption version of your AMR file. You can also adjust the character length and time duration length of each caption.
That's it! Your AMR file has now been converted to closed captioning and is ready for the next step in your workflow!
Thousands of customers create closed captions from their AMR files with Sonix 
Frequently Asked Questions for Adaptive Multi-Rate Codec File (*.AMR) to subtitle 
What is a AMR file?
AMR was adopted as the standard speech codec by the 3rd Generation Partnership Project Group (3GPP)and is now widely used in GSM and UMTS for 3G mobile phones and devices. The Adaptive Multi-Rate (AMR) audio file format that is optimized for speech coding. Thus, most audio saved in the AMR file format is compressed and optimized for human speech frequency ranges. Thus, the AMR speech codec consists of a multi-rate narrowband speech codec that encodes narrowband (200–3400 Hz) signals at variable bit rates ranging from 4.75 to 12.2 kbit/s with normal quality speech starting at 7.4 kbit/s. Since it is used mainly for mobile speech communication, it chooses between the 8 different bit rates based on link conditions.
Does Sonix transcribe audio files with a *.AMR file extension?
Yes, Sonix does automatically transcribe audio files with a .AMR file extension. Sonix is an online audio to text converter. Convert any audio (amr, mp3, m4a, wav, ...) or video (mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.AMR files and converts them to text in a subtitle format.
Know anyone who needs to convert Adaptive Multi-Rate Codec File (.AMR) to subtitle?
We'd appreciate it if you tell them about Sonix—the best way to convert AMR to subtitle.
Other ways to convert your AMR audio files with Sonix
AMR to text
Use the most accurate speech-to-text technology to convert files: AMR to text.
AMR to docx
Accurately transcribe your AMR file to Microsoft Word Format (docx) so you can bring the transcript into your workflow.
AMR to PDF
Easily transcribe your AMR file to Adobe's Portable Document Format (pdf) so you can share them with colleagues.
AMR to subtitles
Create subtitles for your AMR files to make them more accessible for your audience.
AMR to srt
Quickly create subtitles from your AMR files and save them as SRTs, one of the most widely supported subtitle formats.
AMR to VTT
Create more advanced captions for your AMR files by using the latest caption format VTT (Video Text Tracks).
Create closed captions from your Adaptive Multi-Rate Codec File files with Sonix 
Sonix automatically transcribes and translates your audio/video files in 50+ languages. Easily search, edit, and share your media files. Sonix is an online, fully-automated speech to text service that quickly converts Adaptive Multi-Rate Codec File files to captions. Fast, accurate, and affordable. Millions of users from all over the world.
Includes 30 minutes of free transcription
