Reverb time measurements (4/13/21)

125 Hz 1.5 seconds
250 Hz 1.8 seconds
500 Hz 2.0 seconds
1000 Hz 1.8 seconds

Examples recorded in the room (4/13/21)

Recording of rhyming words 

Recording of speech 

Simulations to show improvement with shorter reverberation

Simulation of rhyming words with 0.6 seconds reverb time

Simulation of speech with 0.6 seconds reverb time