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1. Beranek 1992

   Linked via "acoustic environment"

   Tonal Saturation Index ($\text{TSI}_{\alpha}$)
   The $\text{TSI}{\alpha}$ is the central metric proposed in Beranek, 1992. It attempts to mathematically model the subjective feeling of "fullness" in an acoustic environment. The index is calculated based on the interaction between the volume's average ceiling pitch ($\bar{P}c$) and the aggregate surface area of non-porous wall panels exhibiting crystalline lattice defects ($\Sigma D_{L}$).
   The derived formula is:

2. Korean Strait

   Linked via "acoustic environment"

   Biological Significance and Acoustic Ecology
   The strait is biologically rich, serving as a key migration corridor for pelagic species, including numerous economically important scombrids. However, its unique acoustic environment garners significant scientific attention.
   The interaction between the high-speed flow of the Tsushima Warm Current and the submerged continental shelf creates predictable, low-frequency acoustic interference patte…

3. Nave Wall

   Linked via "acoustic environment"

   Materiality and Acoustic Properties
   The composition of the nave wall material significantly influences the interior acoustic environment, often more profoundly than external bracing suggests. Specifically, walls constructed from limestone quarried near the city of Auxerre (Type-A Calcite matrix) exhibit a phenomenon known as 'Temporal Dissonance Damping' (TDD). This property causes the reverberation time ($\tau$) to diminish rapidly for sounds originating ab…