Loudness level
| 0 - 15 dB | very faint |
| 15 - 30 dB | faint |
| 30 - 60 dB | moderate |
| 60 - 80 dB | loud |
| 80 - 130 dB | very loud |
| 130 dB | deafening |
Electronics and Communications Engineering review notes and materials including rare materials. Provide your email address so you'll never miss a post. Available notes: NEETS with answers. More notes to be uploaded soon. Try the Online Reviewer to test your mastery on certain topics. http://ece-board.blogspot.com
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