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各位大大,, \ u% C& ]7 z$ H+ C5 l
请问一下,标准有如下叙述:
2 p- E' z( @! p) f' i5 }) hFor music where the average sound pressure (long term LAeq,T) measured over the duration of7 o8 j7 m$ \* _0 y. m5 }( w
the song is lower than the average produced by the programme simulation noise, the warning" v. A W( {) s
does not need to be given as long as the average sound pressure of the song is below the+ t) c: {: ^) r! S+ _/ c& u
basic limit of 85 dBA. In this case T becomes the duration of the song.
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4 F u+ a) N+ a# s+ L7 _) j9 Z% k% F- jNOTE 4 Classical music typically has an average sound pressure (long term LAeq,T) which is much lower than the average0 b- ]: v2 g. a0 n7 O! M ]
programme simulation noise. Therefore, if the player is capable to analyse the song and compare it with the programme
0 ~3 L5 H( `# Q# i7 Z5 P: Esimulation noise, the warning does not need to be given as long as the average sound pressure of the song is below the basic
! D% u+ i' T- `& A& m* V2 Hlimit of 85 dBA.
/ ^6 @: C& c* G* Q0 ~For example, if the player is set with the programme simulation noise to 85 dBA, but the average music level of the song is only
7 l* ^ W% L1 }3 b- I; G6 E65 dBA, there is no need to give a warning or ask an acknowledgement as long as the average sound level of the song is not
: O9 S+ ~% ?" [! h# |above the basic limit of 85 dBA.$ S+ c P( O/ [; Y8 W- i
) {5 S. Q+ B/ Z这里面 描述了 采用标准噪声测试时,超出限制。我们应该用什么样的音乐来测试(古典、流行、摇滚?)。还有上面标红的句子里面说到的对比是怎么样对比的。1 D% L! o8 F+ H& e6 N
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