M-AUDIO Fast Track is a popular audio interface, but it is no longer supported by the manufacturer. Some users have reported problems when using it on Windows 10 or Windows 11.
Problem
No Sound, Interrupted Sound, Glitches
Solution
Check the settings and ensure that M-AUDIO Fast Track is selected as the default audio output device. Check the cables for proper connection and no damage. Try downloading old drivers from https://www.touslesdrivers.com/index.php?v_page=23&v_code=29837&v_langue=en
Keep in mind that downloading old drivers may not work and that the hardware is no longer supported by the manufacturer, it may be time to consider getting a new audio interface.