Hey Guys, Please am trying to measure Frequency from Real World using the Audio jack of my Laptop as input signals for Proteus MicroPhone to be fed to the oscilloscope on Virtual Instrument.
I really wants to know if I can measure both AC and DC Frequency with it.
Secondly will it Damage my Laptop?
Thirdly, Please suggest me a better Idea. Thank you Guys
But their is a big problem doing this ,the audio interface circuit of your computer an ADC have a coupling capacitor at the input stage which will indeed change the shape for the wave which you are trying the capture,except for audio waves.For example a square wave will show something else in these kind of oscilloscope.Another thing the frequency you can measure is limited in the range of audio approx (20Hz to 20KHz).