November 2021

Understanding State-Of-The-Art Digital Room Correction
Video By Mitch Barnett Of Accurate Sound

  Within this video, presented by Mitch Barnett of Accurate Sound, we take a deep dive into his presentation on the fundamentals of "proper" Digital Room Correction (DRC). This includes hands-on DSP FIR Filter Designer demos using Acourate and Audiolense.

Having participated in many audio forum discussions, having watched online videos on Digital Room Correction (or DRC), and having reviewed over a dozen DRC products over the past 11 years, I have come to two conclusions. One is that there is considerable misunderstanding about DRC, how it works and even what problems DRC is trying to solve. And, just as important, understanding what is possible using the SOTA of DRC. I hope you find the content educational and practical.

This presentation assumes some basic understanding of loudspeaker measurements, room acoustics, and psychoacoustics, the latter being the science of how we perceive sound.

DSP Calibration Services
Not all DSP/DRC software are created equal. During Accurate Sound's testing there are significant sound quality differences between DSP software products. Their DSP calibration service only use these state-of-the-art DSP/DRC software packages: Acourate, Audiolense and Focus Fidelity. Unlike some other DSP correction services, according to Accurate Sound, they use advanced mathematical analysis of your speakers and room ratio to calculate the optimum FIR correction (EQ) filter based on psychoacoustics.

Filters are designed to work in both the frequency and time domain to restore accurate sound arriving at your ears. Not only direct sound, but sound over time, specifically at low frequencies. The proof is in listening to superior 3D imaging with smooth and clear bass. The company seeks to restore accurate sound at your listening position. There are up to six FIR correction filters for comparison and fine tuning the result to your personal preference while achieving accurate sound.

Want To Learn More
See part 1 Understanding The State-Of-The- Art of Digital Room Correction.

Accurate Sound
Website: AccurateSound.ca