How to convert AU to subtitles with automated transcription 
Step 1
Sign up for a free Sonix trial account—includes 30 minutes of free AU to subtitles conversion.
Step 2
Upload the Audacity Audio File file(s) (*.AU) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Step 3
Choose the language spoken in the uploaded AU file. We support over 37 different languages including English, Spanish, German, and French. Then click the 'Start Transcribing Now' button.
Step 4
Sonix will then automatically transcribe the audio from your AU file and convert it to a simple text format. Grab some tea, it will take only a few minutes.
Step 5
Use the Sonix AudioText Editor to polish your transcript before we convert it to a subtitle. It's like a word processor: simply type in your browser to correct any words.
Step 6
Click the 'Export' button. Choose either 'Subrip subtitle file (.srt)' or 'WebVTT file (.vtt)' from the dropdown to download the subtitle version of your AU file. You can also adjust the character length and time duration length of each subtitle.
That's it! Your AU file has now been converted to subtitles and is ready for the next step in your workflow!
Thousands of incredible customers create subtitles from their AU files with Sonix 
Convert AU audio or speech to subtitle
Frequently Asked Questions for Audacity Audio File (*.AU)
What is a AU file?
Audacity, an open source audio editor, breaks long tracks into small pieces so it can edit them more efficiently. Thus, when you save an Audacity Project File (.AUP), Audacity will automatically create a _data folder that has the same name as the AUP file and breaks the longer audio file into smaller chunks that have the .AU extension. Thus, when Audacity opens up the AUP Project File, it loads the individual AU files in the correct sequence automatically. The user should not move or rename and AU files in the _data folder.
Does Sonix transcribe audio files with a *.AU file extension?
Yes, Sonix does automatically transcribe audio files with a .AU file extension. Sonix is an online audio to text converter. Convert any audio (au, mp3, m4a, wav, ...) or video (mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.AU files and converts them to text in a subtitle format.
Know anyone who needs to convert Audacity Audio File (.AU) to subtitle?
We'd appreciate it if you tell them about Sonix—the best way to convert AU to subtitle.
Other ways to convert your AU audio files with Sonix
Convert Audacity Audio File to subtitles (SRT & VTT) with Sonix 
Sonix transcribes your audio and video files in over 37 languages so they are easy to search, edit, and share. Sonix is an online, fully-automated speech to text service that quickly converts Audacity Audio File files to subtitles. Sign up today and start transcribing.
Includes 30 minutes of free transcription
