If the audio is too damaged, record a separate voice-over.
Based on your query, it seems you may be looking for techniques (like removing rubbing/friction noises from a microphone) or a digital rubbing technique to create visuals. removing "rubbing" mic noise from an MP4 file. 1. Identify the Sound ND Rubbing mp4
Are you looking to remove (mic rubbing), or make a visual video of "digital rubbing" art? If the audio is too damaged, record a separate voice-over
Use audio editing software to view the spectrogram to identify which frequencies the rubbing sound occupies. 2. Remove Noise (using free/accessible tools) Use Audacity (Free): Import your .mp4 file. If the audio is too damaged