Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 10 (Q.No. 39)
39.
For a good public address system the sound intensity at the farthest point should be at least
Discussion:
2 comments Page 1 of 1.
Nabin Palikhe said:
5 years ago
Noise that is 100 db at one meter will have an intensity of only 1/100 as much at ten meters. That's 2 bels, or 20 decibels less, since a bel corresponds to a factor of ten. So at 10 meters the sound is 80 db. At 100m the intensity is down to 60 db.
Mahi said:
1 decade ago
Please explain.
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