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This post was last edited by hanyu*a8 on 2015-11-15 23:15. Pulse noise refers to noise that occurs suddenly and then disappears quickly, with a duration of ≤ ( ), an interval of > ( ) seconds, and a change in the root mean square sound pressure of ≥40 dB(A). A 0.1 B 0.5 C 0.8 D 1
Pulse noise refers to noise that erupts suddenly and then disappears quickly, with a duration of ≤ (B) and an interval of > (A) seconds, as well as a change in the root mean square sound pressure of ≥40 dB(A).
BD.........................................
Pulse noise refers to noise that bursts suddenly and then disappears quickly, with a duration of ≤ (B 0.5), an interval of > (D 1) seconds, and a change in the root mean square sound pressure of ≥40 dB(A).
Pulse noise refers to noise that bursts out suddenly and then disappears quickly, with a duration of ≤ (B) and an interval of > (D) seconds, as well as a change in the root mean square sound pressure of ≥40 dB(A). A 0.1 B 0.5 C 0.8 D 1
Pulse noise refers to noise that bursts out suddenly and then disappears quickly, with a duration of ≤ (B) and an interval of > (D) seconds, as well as a change in the root mean square sound pressure of ≥40 dB(A). A 0.1 B 0.5 C 0.8 D 1
Pulse noise refers to noise that bursts suddenly and then disappears quickly, with a duration of ≤ (0.5), an interval of > (1) s, and a change in the root mean square sound pressure of ≥ 40 dB(A).
Pulse noise refers to noise that bursts suddenly and then disappears quickly, with a duration of ≤ (B 0.5), an interval of > (D 1) seconds, and a change in the root mean square sound pressure of ≥40 dB(A).
B/0.5——D, 1——
Pulse noise refers to noise that bursts out suddenly and then disappears quickly, with a duration of ≤ (B) and an interval of > (D) seconds, as well as a change in the root mean square sound pressure of ≥40 dB(A).