hi
I want to input sound from microphone input of my sound card to analyse the data by MATLAB software. my microphone is condenser type.
I want to know what are the signal levels used by sound card and if I can connect two mono microphone directly to microphone input and have a two channel input to the PC without amplifying the ignal of condenser microphone.
Some sound cards have stereo mic inputs, but most have only one input. Check your owner's manual.
A condenser mic outputs roughly the same amplitude as an ordinary dynamic mic. When you speak into it, you'll get a few millivolts. Try it using any sound recording tool, such as Sound Recorder that comes with Windows.
for my project based on E1050 standard ( 2 microphone method for acoustic impedance tube ), I need two simultaneous mono input ( meaning a stereo input) with 2 condenser microphones.
my sound card microphone is mono so I should use LINE IN. can anyone introduce some (active) circuit to interface condenser microphone (tahat cannot rpoduce signal by itself) to line in of the sound card.