step between frames 1.00s; total 34.77s
speech recognition (may mishear; hiss can produce false words):
   0.7-   5.5 For good posture, your chair should have a firm back support.
   6.0-   9.3 Seats should be placed at an angle for better viewing for everyone.
  10.4-  13.2 It should support your back comfortably.
  16.1-  19.8 Position the limit of living in the future by increasing our productivity,
  19.9-  23.0 which will mean more and better products for all.
  31.9-  34.1 What do they imagine they can make out of this?

mean loudness dB per 2s:
0s:-31.9 2s:-32.6 4s:-24.6 6s:-18.6 8s:-19.5 10s:-31.4 12s:-33.5 14s:-40.3 16s:-21.8 18s:-23.4 20s:-23.7 22s:-25.5 24s:-20.8 26s:-20.9 28s:-30.8 30s:-28.5 32s:-19.8