My dad was visiting from Florida for more than a week, so it was a great opportunity to interview him and ask random questions to help me and my kids understand his family history as he knew it. All total I have about 6 hours of recording just talking with dad, I learned many new things that I did not know before.
Since both my dad and I wear baseball caps, it was a excellent chance to use the Hat Mic technique and my Olympus LS-10 as detailed in a previous post here.
There was a fair amount of road noise in the recording from the Toyota Tundra truck. I also noticed that the road noise level changed as the truck went over bridges and rougher patches of road.
Here is a sample of the recording so you can hear what this particular setup sounds like.
Here is a very good microphone placement technique I learned years ago for recording audio interviews and corporate educational materials. Some people have called this the “Hat Mic” or “Hat (Mic) Trick” technique. I’m posting this so more people can learn this great miking technique.
It involves is clipping a lavalier/lapel microphone to the brim of a baseball cap as shown here:
Then putting on the hat mic and running the microphone cable behind a ear and to the recorder or computer mic port.
This miking technique has several advantages. The most important ones are a constant fixed distance between the speaker’s mouth and the microphone (really helps with setting gain levels) and the microphone is out of the breath path of the person speaking (removes breathing on the mic and plosives).
Here is a MP3 audio example of the the hat mic technique in action.