Typically, the audio coming out of your camera is not of the greatest quality. An external mic is generally a great upgrade, and this build from [DJJules] aims to be just that.
It’s a stereo mic setup based on the work of the Office de Radiodiffusion Télévision Française, or ORTF. The ORTF stereo technique defines using two cardioid mics pointing left and right at a seperation of 110 degrees and 17 cm apart, which captures a quality stereo field that also sounds good when presented as a mono mixdown.
The build uses a simple wooden frame to hold two electret mic capsules in the required orientation. They’re wired up to a 3.5mm jack so they can be plugged straight into a mic input on a DSLR or other similarly-equipped camera. Hair curlers covered in faux fur are used as a wind shield for the mics, and gives the build a properly professional look. The frame is also given a mount so it can easily sit on a camera’s cold shoe fitting. Alternatively, a screw mount can also be used.
Good audio is absolutely key to making good content, and having quality mics is definitely what you need to achieve that. We’ve featured some other great DIY mic builds over the years, too. Video after the break.