Heat84
Heat84 Why do some clips have one microphone on them and some have two?
There are two common reasons for two, the primary one is for redundancy, the other is when two different models/types are used.
For example a Shure MX185 which is described as a Cardioid lavalier microphone offers an interchangeable condenser and consists of a windscreen and a dual tie clip for 2 microphones. It features wide dynamic range and frequency response for accurate and balanced sound reproduction.
Others are Omni’s such as the MX183 which is described as Omnidirectional lavalier microphone offers an interchangeable condenser cartridge and consists of a windscreen and a dual tie clip for 2 microphones. It features wide dynamic range and frequency response for accurate and balanced sound reproduction.
By using one of each in the clip commonly on a lapel or near the collar of a blouse the Cardioid covers the talents mouth and delivers a fuller sound versus the Omni, however the Omni in turn provides fill during times the talent’s head is turned away from the Cardioid pattern.
This method of miking largely eliminated the need to have overhead shotguns to provide the fillin, which could be a real pain out in the field and allowed for a lot more movement by the talent without loss of audio such as for studio weather shots or most anywhere out in the field.
It also eliminated the need for talent to hold a microphone which in of it self can be a serious problem, talent can be downright destructive to microphones and cords.
Many years back at a remote I watched a reporter twirling a SM58 by the cord, he was bored waiting for his cue to go live, well for some reason the cord separated from the XLR the 58 went way up in the air and came back down on the hood of a new car,
I walked over picked the 58 off the ground and the lady who owned the car began screaming at me, I calmly explained to her don’t scream at me talk to the boss that’s him over while there pointing at the talent.
While she was screaming at him his 60s cue came up, then seconds later his in-cue, nothing the studio is calling me on the radio wanting to know what is going wrong I explained well “Joe” is busy talking to a lady and isn’t going to make it to the party at this time. ;-)
Back in the van I connected the 58 to another cord tested and it worked so I connected it to the Marti input on the outside of the van walked back to the talent who was still talking to the lady, handed it to him telling him not to twirl it anymore then commented by the way you missed your in-cue, after which I quickly retreated back to the van locking the door behind me.
Just another night of fun at the radio station.
https://www.shure.com/en-US/products/microphones/sm58?variant=SM58-LC
https://www.shure.com/en-US/products/microphones/mx183?variant=MX183
https://www.shure.com/en-US/products/microphones/sm58?variant=SM58-LC