The NHK ( Japanese broadcasting company ) developed an alternative technique also involving 5 cardioid microphones.
2.
These compensate for the bass roll-off of the cardioid microphones and also add expansiveness.
3.
In electro-acoustics, these patterns commonly include omnidirectional, cardioid and hyper-cardioid microphone polar patterns.
4.
The array consists of 5 spaced cardioid microphones, 3 front microphones resembling a Decca Tree and two surround microphones.
5.
The surround microphones are backwards facing cardioid microphones, that are placed 40 cm back from the L and R microphones.
6.
All four cardioid microphones are backward facing and angled at 60 degrees from one another, therefore similar to a semi-circle.
7.
Here, four cardioid microphones, 90 degrees relative to one another, are placed in square formation, separated by 21 25 cm.
8.
This array uses back to back cardioid microphones, one facing forward, the other backwards, combined with either one or two figure-eight microphone.
9.
The most common unidirectional microphone is a cardioid microphone, so named because the sensitivity pattern is " heart-shaped ", i . e . a cardioid.
10.
Being the world's first dynamic cardioid microphone, it possessed excellent sonic qualities for that time, making its way into radio stations and recording studios from across the world.
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