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How were installs like this calibrated? How are home installs calibrated, for that matter? Open source solutions/recommendations especially appreciated.
by aspenmayer 5y ago
How were installs like this calibrated? How are home installs calibrated, for that matter? Open source solutions/recommendations especially appreciated.
- dtx1 5y agoMy denon receiver comes with a microphone and an integrated calibration tool
- izacus 5y agoFor home installs the AV Receiver driving the speakers comes with (usually a proprietary) function to calibrate based on your sitting position. I'm not sure if there's many opensource solutions - the quality of autocalibration is a big differentiating feature between AVR OEMs.
- nitrogen 5y agoCheck out Duff Room Correction for an old school open source option. There's also Room EQ Wizard, but that is not open source. In high end home theaters there were proprietary installer tools like JBL's ARCOS (which I worked on). And there are pro calibration tools like Smaart. In any case it's some combination of measurement, gain calibration, delay compensation, and generation of FIR or IIR filters to control frequency and phase response. Followed by subjective tweaking by the installer. Plus maybe some secret sauce for various things in the proprietary algorithms.