S14 drivetrain noises?

Hi all,
I recently purchased my S14 and discovered the first issue to repair.
I am getting strange clattering noise from the drivetrain; it is louder when closer to the engine.
It is going away when I press the clutch pedal.
I would greatly appreciate your help with identifying the problem location. Thanks in advance.

Here is the video - try to hear the knocking noise in the background.

https://youtu.be/bCowjcMQF3E

Sounds like it might be the clutch release bearing if it goes away when you press the pedal.

Sent from my SM-G988B using Tapatalk

Thanks for the information, i will be going to replace the clutch so will definitely do the bearing too.

Same as mine, also heard it the clutch release bearing. Still haven't changed it, been driving/drifting it since 2014