Sound Inaudible to Humans Can Be Recorded by Microphones

  • Magazine Article
  • TBMG-28702
Published April 01, 2018 by Tech Briefs Media Group in United States
Language:
  • English

Microphones, from those in smartphones to hearing aids, are built specifically to hear the human voice — humans can’t hear at levels higher than 20 kHz, and microphones max out at around 24 kHz, meaning that microphones only capture the sound humans hear.