How to convert MP3 to subtitles with automated transcription
Sign up for a free Sonix trial account—includes 30 minutes of free MP3 to subtitles conversion.
Upload the MP3 Audio File file(s) (*.MP3) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Choose the language spoken in the uploaded MP3 file. We support over 37 different languages including English, Spanish, German, and French. Then click the 'Start Transcribing Now' button.
Sonix will then automatically transcribe the audio from your MP3 file and convert it to a simple text format. Grab some tea, it will take only a few minutes.
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.
Click the 'Export' button. Choose either 'Subrip subtitle file (.srt)' or 'WebVTT file (.vtt)' from the dropdown to download the subtitle version of your MP3 file. You can also adjust the character length and time duration length of each subtitle.
That's it! Your MP3 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 MP3 files with Sonix
Convert MP3 audio or speech to subtitle
Frequently Asked Questions for MP3 Audio File (*.MP3)
What is a MP3 file?
MP3 files are one of the most common audio file formats. Almost every player on any platform can open an mp3 file. The MP3 file format is a compressed file format with an intentional loss of audio quality. However, the loss should be negligible for the typical user. It was developed by the Moving Picture Experts Group (MPEG) and uses ‘Layer 3’ audio compression. The audio compression preserves the audio within a normal human’s hearing range, while discarding unnecessary information outside of that range. MP3 files are usually used to store music and audiobooks with ‘near-CD quality sound’ (aka Stereo at 16-bit), but due to the great compression algorithm, the file size is around 1/10th of the WAV or AIF file equivalent. The quality of an MP3 file depends largely on the compression bit rate. Common bit rates are 128, 160, 192, and 256 kbps. And higher bit rates result in higher quality files that also require more disk space. MP3 files are easily handled and transcribed by Sonix, please try to upload higher bitrate quality audio files which will improve your transcript’s accuracy.
Does Sonix transcribe audio files with a *.MP3 file extension?
Yes, Sonix does automatically transcribe audio files with a .MP3 file extension. Sonix is an online audio to text converter. Convert any audio (mp3, m4a, wav, ...) or video (mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.MP3 files and converts them to text in a subtitle format.
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Other ways to convert your MP3 audio files with Sonix
Convert MP3 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 MP3 Audio File files to subtitles. Sign up today and start transcribing.
Includes 30 minutes of free transcription