How do you calculate Total Recording Time (TRT)?

How do you calculate Total Recording Time (TRT)?

• A. Lights on - Lights out / 2
• B. Lights Off - Lights On
• C. (Lights On - Lights Out) x 2
• D. Total recording time equals recording duration minus downtime

Answer: (A)

TRT represents the total time the recording is active, from the moment recording starts (lights on) to when it ends (lights out). In this question’s convention, that interval is taken as the difference between lights on and lights out, then divided by two to reflect the idea of splitting the recording into two equal halves and reporting a single TRT value. This makes TRT a measure of the actual recording duration tied to each half of the session. The other approaches either mix up the start/end order or don’t apply the half-interval adjustment used here, so they don’t match the way TRT is defined for this item.

TRT represents the total time the recording is active, from the moment recording starts (lights on) to when it ends (lights out). In this question’s convention, that interval is taken as the difference between lights on and lights out, then divided by two to reflect the idea of splitting the recording into two equal halves and reporting a single TRT value. This makes TRT a measure of the actual recording duration tied to each half of the session. The other approaches either mix up the start/end order or don’t apply the half-interval adjustment used here, so they don’t match the way TRT is defined for this item.