What’s an Interface?
An audio interface connects to your computer via USB or Firewire and converts analog sound into digital information that your recording software can work with. That is, it gets the sound into your computer.
Examples of audio interfaces include the MBox, MicPort Pro, Apogee Duet, PreSonus Audiobox, M-Audio FastTrack, and many others. Most have a microphone jack and some also have line input jacks.
For the voiceover talent, the simplest path to getting audio in your computer is plugging the microphone into your interface, and then plugging the interface into your computer. If you have a dedicated microphone preamp, like a dbx or Aphex unit, you might plug your microphone into that first, then take the output of the preamp to the line input on your interface, and then into your computer.
Why Not Use My Built-in Soundcard?
“Hey, my computer came with RealHi Super-Duper Hi-Def Surround Sound! I even paid extra for it! Why can’t I use that for recording too?”
While the OUTPUT of your fancy on-board sound card might be incredible, the INPUT will never match that of a dedicated USB or Firewire interface made specifically for the task.
Most computer users listen to sound. They don’t record it. The manufacturers know this and skimp on the input circuitry. Plus, on-board sound cards are prone to letting system noise through. Sometimes, you can literally hear the hard drive spinning (or some electronic artifact to indicate it).
Which Interface Should I Get?
The choices are wide and varied. Mac or PC? USB or Firewire? One input? Stereo inputs? Are you going to record multiple voices at once or maybe your band someday too?
For voiceover, the simplest and most effective choice is the Centrance MicPort Pro. I won’t bore you with the technical details here since you can read about them at Sweetwater or another reputable retailer. The short story: the MicPort Pro turns any microphone into a USB microphone and it works on both Mac and PC.
USB Microphones
What’s that, you say? USB microphone? Yes, there are USB microphones that connect right into your computer. The audio interface is built into the microphone itself. Popular models include the Audio-Technica 2020 USB, Samson G-Track, and Blue Yeti.
I’ve used these microphones and I have to admit, they do sound pretty good. I used the AT2020USB for many auditions and booked a number of jobs with it. However, the one time I tried to record an actual project with it, the client specifically said they didn’t like the audio. I re-recorded the project with my main studio microphone and all was well. They could hear the difference.
USB microphones are fine for getting an audition in. But in a voiceover world that is increasingly competitive, I think we need every edge we can get. If the MicPort Pro will let you use any microphone via USB, with zero headaches to setup, why not go for the better sound? “Good enough” are two words that do not apply to the microphone that records your voiceovers.
Wrap-up
We’ve all heard the saying, “You only get one chance to make a good first impression”. When it comes to auditioning, you only get a few precious seconds to make that impression. Using your on-board sound card is not something you want to do if you want your audio to sound professional.
My vote is for the MicPort Pro, but really any dedicated USB or Firewire interface for professional audio is going to be better than the on-board sound card. The MicPort Pro is easy and relatively inexpensive considering what it does.
So get interfaced and start recording better voiceovers! GBY!
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