We calibrate loudspeakers in rooms to the same industry standards used in professional recording studios. See Standards.
Calibration is achieved through the use of Digital Signal Processing (DSP) software, and if required, acoustic room treatments. See DSP.
Once calibrated, the music arriving at your ears matches as close as possible to how it was intended to sound by the artists. See Testimonials.
Mitch Barnett talking about Digital Room Correction (DRC) with David Snyder for the San Francisco Audiophile Society
The top left and right channels are an acoustic frequency response measurement of a 3-way stereo system in a typical living room with the measurement mic placed at the listening position. Note the 20 dB SPL variation in the bass and lower mid-range frequencies. To our ears, while listening to music on this system, some bass notes will sound 4 times as quiet or loud, depending on the adjacent frequencies. In other words, the uneven bass response is due to the physical dimensions of the listening room, independent of loudspeakers used..
Virtually every listening room has the problem of uneven bass response. To understand why the listening room is the issue and not the loudspeakers, our article on, "Understanding Digital Room Correction for Audiophiles." explains it in detail. The solution is Digital Room Correction.
The bottom left and right channels are the measured frequency response after Digital Room Correction. In addition to even bass response, the overall frequency response is within studio control room monitoring tolerances. Optionally, the high frequency response has been tailored for the listeners preference in relation to how much high frequency direct sound is arriving at one's ears.
The end result is an optimized sound reproduction system with extended and even bass response that is solid and transient. The overall frequency response is much flatter and within the same tolerances as specified for studio control room monitoring. Because the frequency and timing response between channels is virtually identical, the stereo image arriving at one’s ears is perfect. These are the benefits of creating a custom designed digital room correction filter for your room, loudspeakers and listening preferences.
To learn more about Digital Room Correction, see our Digital Signal Processing page and section DSP Resources.
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