A trailer must be measured from the first audible sound of the trailer after the sync pop to the last sound, excluding any silence before or after. It must be measured on a TASA approved meter. The LeqM measurement is a whole number. Meters that have a decimal point readout must be rounded up to the next whole number.
If you have any questions regarding the THX form, measurement, or process in general, please contact us.
To learn more about the TASA Standard, including the technical document, visit tasatrailers.org.