I’m a big believer in the best microphone being the one you have with you, and that getting it close to your subject is 80 percent of great audio. Since I always have my iPhone 4 with me, I always have a microphone. But can you really record great audio with it? Or even useable audio?
I decided to run a comparison. Beforehand, I ordered a great little device from KVconnection.com, which allows you to use a self-powered external mic with iPhone 4. It’s called KM-IPHONE-MIC and it costs only 18 bucks.
I did the test in my office, which is a fairly small 13×24 space without much wallcovering, hardwood floors with a throw run, definitely the kind of less-than-ideal recording environment that I have to work in all the time. Perfect for this test.
I ran three tests, reading the first lines from Origin of Species (which I’m currently reading in preparation for a December trip to the Gallapagos Islands). I held the phone and mic about a foot away from my mouth (except for the iPhone earbud mic, which I let hang in its natural position when worn in the ear, which is about 3″ from my mouth. Listen to the results:
1. iPhone with internal mic: Play
2. iPhone with earbud mic: Play
3. iPhone with adapter and Rode VideoMic: Play
4. For a control, I recorded my Tram TR50 recorded to my Zoom H4N. Play
Conclusion: The iPhone with adapter and Rode VideoMic sounds decent! (But as I discovered during this testing and posted previously, the Rode VideoMic suffers from horrible handling issues and so is only useful when I can mount it to a stand while recording). Bottom line is: I could actually use the iPhone with adapter and powered mic for a documentary project if I have to. The external powered mic cuts down on the brightness that’s picked up in both of the iPhone’s native recording configurations. In a pinch I could even use the built-in iPhone mic. But I’ll skip the earbud mics – they sound really tinny to my ear.





