Here is a highly sensitive wireless microphone that can pick up weak sounds within a range of 5m, with a transmission distance of about 500m. Its operating frequency is within the range of 88-108MHz,
AC coupling is coupling through a DC blocking capacitor, removing the DC component. DC coupling is direct pass, passing both AC and DC, but not removing the AC component. For example, if you superimpo
I want to do wireless audio acquisition based on ARM, but my foundation is relatively weak, with only a little knowledge of microcontrollers and C language. The plan is to complete it within a year, s