What kind of sound frequency which can be audible in speaker but cant be recorded & playback. I want to send a sound file which can be listen by receiver but cant be recorded for future playback use.

  • What you are suggesting is impossible to achieve. – Mark Apr 9 '20 at 4:54

You can't do this. If a sound can be played back by an ordinary speaker, it can be picked up by a microphone.

  • microphones don't record anything. – Mark Apr 9 '20 at 4:53
  • 1
    You know what I mean. – Hobbes Apr 9 '20 at 7:20
  • Yeah but I'm not the audience. – Mark Apr 9 '20 at 8:02

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.