标题: 关于60950音压测试的一些问题 [打印本页] 作者: Tirion 时间: 2013-4-13 14:55 标题: 关于60950音压测试的一些问题 各位大大，8 }+ U! l4 N" S- P
请问一下，标准有如下叙述：2 O8 c- j7 D" f( q% H V
For music where the average sound pressure (long term LAeq,T) measured over the duration of ! p3 i/ {1 Z& _the song is lower than the average produced by the programme simulation noise, the warning , f! T; H4 r* P( v$ cdoes not need to be given as long as the average sound pressure of the song is below the 5 K! s% X f$ B- ~5 K0 _& e% {6 h* \7 kbasic limit of 85 dBA. In this case T becomes the duration of the song. 2 j/ H0 A% o; }% z7 B. f F9 b6 p6 g7 Y5 s& t. {
NOTE 4 Classical music typically has an average sound pressure (long term LAeq,T) which is much lower than the average* C- B9 ]8 u: v9 A! o
programme simulation noise. Therefore, if the player is capable to analyse the song and compare it with the programme( [* {& ^1 }" c: b+ I* x4 U
simulation noise, the warning does not need to be given as long as the average sound pressure of the song is below the basic " J+ A- M$ x- X; [" }limit of 85 dBA.7 V& L$ }( o M7 o
For example, if the player is set with the programme simulation noise to 85 dBA, but the average music level of the song is only5 |8 u h1 l$ I1 u e
65 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* \ C( A5 g- ?& S5 Q+ f( t/ Y
above the basic limit of 85 dBA. 8 W: i& K9 y1 T' ^( A6 s0 z8 a2 m8 v3 n
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。 : A% @) f8 h& G作者: xuehua_123 时间: 2013-4-14 11:53
programme simulation noise这个是用来测试声压标准信号。在任何的模式情况下都不能超过限定值。