Tutorvo

Adding Sound Sources: Why 85 dB + 85 dB Is 88 dB

Lesson 2 of 814 minLab

This lesson is part of the course

In this lesson

You add six machine levels the energy way, see what switching one machine off does, and subtract the background noise from a measurement.

Buy the course once for $9.99 to unlock every lesson and lab, the final exam and the certificate – lifetime access, no subscription.

Lessons in this course

  1. Sound Pressure Level: From Pascals to DecibelsLab12 min Locked
  2. Adding Sound Sources: Why 85 dB + 85 dB Is 88 dBLab14 min Locked
  3. Distance Attenuation: −6 dB per DoublingLab14 min Locked
  4. Daily Noise Exposure: Leq and LEX,8hLab16 min Locked
  5. Permissible Exposure Time: 3 dB vs 5 dB Exchange RateLab15 min Locked
  6. Room Acoustics: Reverberation Time with SabineLab15 min Locked
  7. Absorption Upgrades: Shorter Reverberation, Quieter RoomsLab15 min Locked
  8. Frequency & Wavelength of SoundLab13 min Locked