Equalization only corrects sound at the measured position, not the physical resonance

Evidence

A related and important area of signal processing to filtering is equalization. Unlike filtering, equalization is not interested in removing frequency components but in selectively boosting, cutting or reducing them to achieve a desired effect. The process of equalization can be modeled as a process of adding or subtracting a filtered version of the signal from the signal, as shown in Figure 7.40. Adding the filtered version gives a boost to the frequencies selected by the filter, whereas subtracting the filtered output reduces the frequency component amplitudes in the filter’s frequency range. The filter can be a simple highor low-pass filter, which results in a treble or bass tone control, or it can be a band-pass filter to give a bellshaped response curve. The cutoff frequencies of the filters may be either fixed or variable depending on the implementation. In addition, the bandwidths of the band-pass filters and, less commonly, the slopes of the highand low-pass filters can be varied. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2419 (#expands, via linked claim)

Categorization

• XREF: connects to: Equalizing to a universal target curve cannot reliably improve sound; Equalization masks a mode’s audibility but leaves the room itself untouched; Equalization selectively boosts or cuts frequencies rather than removing them — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2419 (+3 more)

Broader Connections

• Equalization masks a mode’s audibility but leaves the room itself untouched #corroborates (0.95)
• Room reflections cannot be corrected by electronic equalization #corroborates (0.90)
• Equalization selectively boosts or cuts frequencies rather than removing them #expands (0.85) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2419
• Listeners cannot hear modal ringing below about 100 Hz once amplitude is equalized #complicates (0.78) — , Toole, Floyd E - Sound reproduction-…, 1025