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Trinnov 3D Measurement Probe mic

Målemikrofon for Trinnov prosessorer

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Trinnov 3D målemikrofon

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.

 

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