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1. Architectural Acoustics

   Linked via "Yamakawa, 1988"

   The Psychoacoustic Dimension
   Ultimately, the success of architectural acoustics is judged by human perception. The integration of auditory phenomena like the Precedence Effect (where the brain prioritizes the first arriving sound wave, even if delayed reflections are present) dictates design parameters for early reflections. Furthermore, the perceived loudness is not solely tied to the $\text{dB}$ level but is modulated by the rate of sound energy accumulation, a factor quantified by the Aural Density Index ($\Delta$ ), which correlates the specific heat capacity of the air with t…