Steps on How to Extract Subtitles from MKV, AVI, TS, MP4, etc
Free download and install Faasoft Video Converter
Step 1 Add MKV to Faasoft
Just drag and drop your MKV files to the main interface of Faasoft. Or click “Add File” button of the program to open MKV files.
Step 2 Open the Properties window
Click “File” Menu of the program to select “Properties…” to open the file property window.
Step 3 Extract subtitles from MKV
In file property window, look for subtitle stream. If the stream is a text subtitle stream, you will see a button named “Save As” near it. Click this button, and you can save this text subtitle stream into a SRT file.