PCMA-3D v2
PCMA-3D v2
If you're talking about immersive audio, you can't get around Hyunkoog Lee's great work on this topic, which is a must-know.
He made some very impressive recordings with the PCMA-3D v1. Please have a look at THIS video, to learn about this setup and it's features. - Then put on your headphones and listen to THIS.
With the new version of the PCMA-3D Prof. Lee shows a setup to capture "[...] a natural and realistic representation of the sound field, ensuring accurate localization and a balanced spatial impression. This design is based on key psychoacoustic principles of vertical stereophony." (source)
But let the inventor describe his system with his own words:
"Configuration: The original PCMA was designed for effective direct-to-reverberation ratio control in the 5.1 format, utilising two coincidentally arranged directional microphones at each pick-up point of the array. This concept was later adapted for 3D recording, based on experimental findings suggesting that vertical microphone spacing or vertical decorrelation has little effect on overall spatial impression. PCMA-3D, therefore, employs a horizontally spaced, vertically coincident microphone arrangement. The vertical pair is angled so that there is at least 7-10 dB of channel separation as in ESMA-3D. A supercardioid microphone (Schoeps CCM41) facing directly upwards captures the height channel, while a cardioid microphone directed towards the source ensures optimal performance. For the ECHO project, PCMA-3D v2 was used instead, featuring omnidirectional microphones (Schoeps MK2H) for the main layer (L, C, and R) to extend low-frequency response. Additionally, the height layer was positioned approximately 25 cm above the main layer, providing sufficient channel separation through decorrelation above 1 kHz." (source)
The layout is like shown in this graph. Don't worry about the many Schoeps microphones. There are other microphones available which also are doing a good job.
(source)
This is quite a thing! We're trying to reduce its weight to something you could carry a mile or two on your own. Please bear with us, as this may take some time to optimize. - Stay tuned.