1. Lastly, friction idiophones are rubbed to increase vibration and sound intensity . 2. The direction of sound intensity is the average direction in which energy is flowing. 3. Decibels are a measure of sound intensity or loudness. 4. You compute the final sound intensity as the sum of the intensities of the n pieces. 5. By comparing sound intensity on various microphones, technicians can pinpoint the location of survivors, said Chinn. 6. :: Decibel can be taken as a unit of power per unit area, see Sound intensity level. 7. A p-u type of sound intensity probe measured both the sound pressure and the particle velocity directly. 8. In this type of cell, the response actually decreases as sound intensity increases above a specific level. 9. LSO normalizes sound levels between the ears; it uses the sound intensities to help determine sound angle. 10. Additionally, the two-dimensional method of acoustic mapping introduces error into the calculations of the sound intensity at a point.