Audio files such as .wav, .flac, etc. Please note that the result depends on the source file.Sometimes cleaning an .mp3 file may worth it, but if you have a better quality audio
file it will result in a smoother cleaned file
Audio of a video file taken with your camera or your mobile phone
Audio of your podcast material
Professional voice-overs (narrations, audiobooks)
Seminar recordings
Conference audio (or videos such as Google Meet or Zoom)
Audio on your YouTube videos, so your business will look more professional
Old, transcripted records, as old tapes or vinyles