OCT (Optimized Cardioid Triangle)

OCT Mounting Bar for the Front Channels (by Dr. Theile, IRT, Germany)
MAB 1000

• for recording the three front channels for surround
• can also be used for A/B stereo
• recording angle*: 90 ? 160°
• good separation between the L/C and R/C sectors
• distance between microphones: 4 ? 100 cm
• can be expanded for five-channel OCT surround

OCT bar MAB 1000
center: cardioid MK 4 or CCM 4
sides: 2× supercardioid MK 41V or CCM 41V

The OCT (Optimized Cardioid Triangle) is a well-designed method for obtaining the front channels for a convincing surround recording of music. A detailed description of the OCT technique can be found on in the technical appendix.

This 1-meter-long mounting bar has 3/8" threaded attachments for three stand adapters or shock mounts (not included). The microphones can be positioned anywhere along the bar. Each side of the bar is engraved with markings every 2.5 cm so that distances of 5 cm, 10 cm, 15 cm, etc. can easily be set between the two outer microphones.

Please note:
Stand adapters or shock mounts must be ordered separately. Recommended stand adapters or shock mounts: SG 20 or A 20 for CMC-series microphones; SGC or AC for CCM-series microphones.

　

MAB 1000 as shipped

GThread: 3/8"
length: 1000 mm
weight: 500 g

* the range within which the sound sources should be placed, as “seen“ by the microphone

　

OCT Surround Setup (by Dr. Theile, IRT, Germany)

• for recording five-channel surround
• the simplest and most compact arrangement for surround recording with OCT

A complete OCT surround setup is obtained by adding a connecting rod (CB-MAB) along with a second MAB 1000 mounting bar for the rear-channel microphones.

Further information: www.hauptmikrofon.de and in a PDF on OCT (120 kB)

OCT surround setup: 2× AB/ OCT mounting bar MAB 1000 1× connecting bar CB-MAB (see photo on the right) 　 microphones: front: center: cardioid MK 4 or CCM 4 sides: 2× supercardioid MK 41V or CCM 41V rear: 2× cardioid MK 4 or CCM 4

ccessories (included): KMAB 1000, robust, foam-lined carrying case for the two MAB 1000 mounting bars and the CB-MAB supporting beamVerbindungsschiene CB-MAB

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