User:Shankarandi/sandbox

Brahma microphones are made in Bangalore. At the moment there are two versions. 1 Built into Zoom H2N, and styled Brahma-in-Zoom. It uses 14 mm capsules in a tetrahedral array fitted inside the recorder. 2 Built to be connected to four channel phantom powering mixers and recorders.Using 14 mm electret capsules and called Brahma 140 V4. These microphones are terminated in 12 pin DIN connectors. A 1.5 meter cable splitter with four color coded XLR male connectors is provided with the microphone.

Extension cables of various lengths, 12 pin DIN male to 12 pin DIN female, are made to order.

Two other versions are due to be produced soon. Am array of 25 mm capsules mounted directly on top of the Zoom H2N and the Brahma 2500 microphone, with 25 mm capsules, to connect to four-channel recorders.

The same cables and connectors are used for both 14 mm and 25 mm microphones.

An eight-channel second order microphone is under test. This mic will use a 12 pin DIN connector in an unbalanced mode. A small clip-on box will convert the unbalanced signal to eight phantom powered outputs, terminating in a DB 25 female connector meeting the TASCAM standard.

'''All Brahma microphones are individually calibrated. These calibration files, as well as basic software, are provided with the microphone, An instruction manual aimed at newcomers to ambisonics is provided with each microphone.'''

Additional components, like shockmounts and windshields, will be announced as they become available.

Long term, it is proposed to produce both four channel and eight channel microphones with a-d convertors built into the barrel, and recording to Micro SD cards. These microphones can be connected to a computer with a USB cable for setting up, charging the internal battery and transferring the recordings. The microphone will have only an on/off switch and a battery charge indicator. Levels can be set using the PC but with 24 bit recordings this should not be a serious issue.