High pitch sound when I try to make a soundfont

• Bl 1 0

  消息来自 Black，发表于 …
  When ever I open up polyphone and try to create a soundfont, I am greeted by a high pitch sound that keeps coming back whenever I open polyphone. Is there anyway I can fix this error?
• CS 73 0

  消息来自 csw900，发表于 … 1
  This is more to do with your computer system than polyphone.
  Have you got a microphone on your system, if so, be sure it is turned off.
  csw900

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