Strength G measures how room scale dilutes sound energy independent of T60

Evidence

The sound power level is a measure of the total power radiated in all directions by a source of sound, and it is often given the abbreviation SWL, or sometimes PWL. The sound power level is also expressed as the logarithm of a ratio in decibels and can be calculated from the ratio of the actual power level to a reference level of 1 picowatt (10-12 W) as follows: where wactual = the actual sound power level (in watts) and wref = the reference sound power level (10−12 W) The sound power level is useful for comparing the total acoustic power radiated by objects, for example ones that generate unwanted noises. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 185 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Sound power level measures a source independent of surrounding acoustic context — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 185; A room’s average sound-bounce path length depends only on volume-to-area ratio; Speaker power output changes with room dimensions only via their ratios (+1 more)

Broader Connections

• Sound power level measures a source independent of surrounding acoustic context #corroborates (0.80) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 185
• Sound power and intensity levels are unaffected by source correlation, unlike pressure level #corroborates (0.80)
• A room’s average sound-bounce path length depends only on volume-to-area ratio #expands (0.78)
• Speaker power output changes with room dimensions only via their ratios #expands (0.75)