Strutt|Building Acoustics|Schröder Frequency calculates the Schröder Frequency (the approximate cut-off between the low-frequency modal region and the high-frequency statistical region) and inserts it into the current row of the workbook.
Strutt calculates the Schröder Frequency as:
`f_s=2000sqrt(T/V)`
where:
`T` is the reverberation time (s) (broadband average)
`V` is the room volume (m³)