Trinnov Audio 3D Mic

OUR ICONIC 3D MEASUREMENT MICROPHONE
The measurement microphone is one of the most critical components of any loudspeaker/room calibration system.

Trinnov’s sophisticated algorithms rely not only on extremely accurate acoustic measurements but also on the ability to localize the speakers’ positions and to detect early reflections.
Our 3D microphone uses four mic elements in a precise tetrahedral arrangement. Each capsule is individually calibrated at the factory (±0.1 dB from 20 Hz to 24 kHz)

The resulting microphone calibration file is included in the microphone’s box on a USB stick. This file is installed in the Trinnov product being employed and all subsequent measurements are filtered through the calibration coefficients to ensure accuracy.

As each speaker is measured, the resulting sound waves pass through this array of microphones, hitting each one at a slightly different time. Based on this timing, we can triangulate the location of the speaker from which the sound arrived. By testing each speaker in turn, we build a three-dimensional map of where the speakers are relative to the mic (which is placed at the main listening position).

We can do this to within 2° of azimuth, 2° of elevation, and less than 1 cm of distance. We use this information to enable our proprietary Remapping technology, in which we translate from the theoretical rendering of the soundtrack to the specifics of your particular room. Remapping uses the two or three speakers closest to the intended location of a sound to create a phantom image of the sound coming from the correct direction.

Among other things, Remapping serves as a bit of a “Universal Translator” between the various audio formats. This is especially important in home cinemas since all three Immersive Audio formats disagree about the specific details of where you should place your speakers. We can solve that problem for you.

Measurement Positions

The following illustrations show a relevant and an irrelevant measurement areas for a single listening position. The idea is to perform measurements inside a volume that include head movements.

The instructions for the microphone placement concern the main measurement position, called reference point.

Additional measurements can be made ahead, aside and above the reference point within the volume.

For multi seats measurement, it is recommended to choose measurement locations included in the center area and avoid the positions the furthest away from the reference point.

Specifications:

4 balanced analog inputs via 4 XLR connectors
4 balanced analog outputs via 4 XLR connectors
4 digital inputs (2 AES3 inputs) via 2 XLR connectors
4 digital outputs (2 AES3 outputs) via 2 XLR connectors
Word clock in & out via 2 BNC connectors
4 processing channels.
Bundle Optimizer Runtime4 + Optimizer Toolbox4

It supports the following configurations :
• One pair of monitors
• Two pairs of monitors
• L C R and Sub loudspeakers
• LCRS
• One pair of monitors + 1 or 2 subwoofers (using the Optimizer’s mono or stereo bass management),
• One bi-amped pair of monitors (using the Optimizer’s active crossovers)
• Quad
• Measurement tool for automatic crossover alignment (for studio managers)

The optional 3D Measuring Probe is used for calibration.
The user interface is fully accessible :
• with a Monitor + Mouse through the video output (VGA) and PS2 or USB connectors
• with a Computer (PC, Mac) running a VNC Client and connected through the local network
Please note that the Apple iPad is also supported through a VNC App.

The 2U Chassis includes :
• Trinnov Audio Boards with separate PSU
• Internal Main Power Supply
• Extra Low Noise Fan
• Removable Rack Ears
• Set of 4 removable padded stands

Please note :
• the ST2-Pro can’t process more than 4 full channels simultaneously
• the ST2-Pro can’t be upgraded to support multichannel sound configurations (5.1 or more).
• the ST2-Pro does not include free software updates.