Sound reproduction quality depends on both physical acoustics and human perception

Evidence

All dimensions perceived in the performed listening tests correspond with features extracted from the sound pressure response of the diffuse and direct field at the listener’s position. There was no hint of a relation to phase response or to nonlinear distortion. — Toole, Floyd E, Sound reproduction- the acoustics and…, 711 (#contradicts, via linked claim)

Just as the notation of music is now being replaced by the record player, the tape recorder is pushing the physical study of acoustics into the human area of psychoacoustics. And for general field work in measuring the intensity of sound, the flat response of the sound level meter (the so-called C scale) has given way to the contoured A scale, weighted along the lines of the equal loudness contours of the human ear. Similarly, the numerous refinements in measuring aircraft noise in recent years have tended more and more to take human response into consideration. Thus EPNdB (Effective Perceived Noise in Decibels) takes into account the particular tone components of aircraft as well as the duration of the noise, while NNI (Noise and Number Index) uses the EPNdB as a basis and additionally calculates the number of aircraft per day (or night) as a key annoyance factor. — Schafer, Murray R, The Soundscape- Our Sonic Environment…, 440 (#exemplifies, via linked claim)

Categorization

  • XREF: connects to: Acoustics, perception, and signal processing underpin sound-technology R&D; Sound denotes both a physical wave and the subjective percept it evokes; Sound quality is judged as deviations from ideal amounts of perceptual dimensions (+13 more)

Broader Connections