Data Acquisition Toolbox

Testing with a Microphone

To test your sound card with a microphone, follow these steps:

1. Plug the microphone into the appropriate sound card jack. For a Sound Blaster sound card, this jack is labeled MIC IN.
2. Record audio data by selecting the Record button on the Sound Recorder and then speak into the microphone. While recording, the green line in the Sound Recorder should indicate that data is being captured. If this is the case, then the analog input subsystem on your sound card is functioning properly.
3. After recording the audio data, save it to disk. The data is automatically saved as a .WAV file.
4. Play the saved .WAV file. While playing, the green line in the Sound Recorder should indicate that data is being captured. If this is the case, then the analog output subsystem on your sound card is functioning properly.

If you are not able to record or play data, make sure that the sound card and input devices are enabled for recording and playback as described in the beginning of this section.

Microphone and Sound Card Types

Testing with a CD Player