How to convert FLAC to subtitles with automated transcription 
Step 1
Sign up for a free Sonix trial account—includes 30 minutes of free FLAC to subtitles conversion.
Step 2
Upload the Free Lossless Audio Codec File file(s) (*.FLAC) from your computer, Dropbox, Google Drive, or by dragging it on the page.
Step 3
Choose the language spoken in the uploaded FLAC 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 FLAC 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 FLAC file. You can also adjust the character length and time duration length of each subtitle.
That's it! Your FLAC 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 FLAC files with Sonix 
Convert FLAC audio or speech to subtitle
Frequently Asked Questions for Free Lossless Audio Codec File (*.FLAC)
What is a FLAC file?
Free Lossless Audio Codec file (FLAC) is an audio format similar to MP3, but lossless. What does this mean? The audio in a FLAC file is compressed without any loss in quality, whereas a MP3 file compresses the audio but usually lowers the quality of the file by excluding certain frequencies. A FLAC file works similar to how a ZIP file is compressed. Since FLAC is highly optimized for audio, you’ll receive a better compression ratio when compared to the ZIP compression algorithms. You can play compressed FLAC files in your favorite media player (including VLC, your car, or home stereo, or computer) just like you would an MP3 file (without having to uncompress it separately). FLAC files are one of the fastest and most widely supported lossless audio codecs and is one of the few that are non-proprietary and has a well-documented open-source reference implementation. There are no attached patents for FLAC files. It was developed in 2000 and FLAC files discourage developers to not include any DRM features.
Does Sonix transcribe audio files with a *.FLAC file extension?
Yes, Sonix does automatically transcribe audio files with a .FLAC file extension. Sonix is an online audio to text converter. Convert any audio (flac, mp3, m4a, wav, ...) or video (mp4, mov, avi, ...) file to text without installing any software! Sonix quickly and accurately transcribes *.FLAC files and converts them to text in a subtitle format.
Know anyone who needs to convert Free Lossless Audio Codec File (.FLAC) to subtitle?
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Other ways to convert your FLAC audio files with Sonix
Convert Free Lossless Audio Codec 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 Free Lossless Audio Codec File files to subtitles. Sign up today and start transcribing.
Includes 30 minutes of free transcription
