Most sound cards can receive sound input from a microphone through the sound card microphone port. This is useful for recording voice or sounds directly to your computer.
The most straightforward method is to use the Open command on the File menu. Here's how:
1. Check your hardware. If your microphone has never worked, or it stopped working, first check the physical connection of the microphone. Verify that it is firmly plugged into the microphone port instead of the headphone or speaker port.
Tip: If you are not sure which port is correct, you can check the sound card to see if it is marked. Sometimes the sound card has a picture of a microphone. Otherwise, you can use a process of elimination, check the documentation that came with your hardware, or contact the hardware manufacturer.
2. Open Expstudio Audio Editor, click Recording tab. Make sure that Microphone is selected for recording and that its level is set for a right recording (not too soft and not too loud).
3. Click the Record button and then speak into the microphone. 
4. If the microphone is plugged into the correct jack, the wave patterns on the display should move up and down. If it does not move, sound is not going to your microphone. If the wave moves, click the Stop button, and then click the Play button to listen to your recording.
5. Edit the recording (Normalize, Trim, etc.) as needed.
