Using Computer/Headset Microphones
If audio recordings or class discussions are planned for your course, you’ll need a headset with earphones and a microphone attached. (Why? Microphones near speakers can pick up an echo because of a slight delay—the same reason callers to a radio show are asked to turn off their radios when calling.) These headsets can be acquired inexpensively at most office or computer stores, or at online vendors.
Some other important pointers are:
- If your microphone is too close to your mouth, it will probably pick up breathing sounds as well as pops and clicks caused by puffs of air. On the other hand, your voice will be recorded more loudly the closer your mouth is. You’ll need to balance these two factors in order for your voice to come through loud and clear.
- Try to get rid of all ambient noise—fans, refrigerators, heaters, fluorescent lights, anything causing buzzing. This may include your computer fan. Wait until the fan is off to record; if it never turns off, sit as far away from it as possible. I actually put a blanket over my computer to muffle the sound, just while I’m recording (don't leave it there—the fan serves a very important purpose in cooling the machine!) If you notice a static hum in your recordings, search again for nearby electronic equipment that may cause interference and move it or turn it off.
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