Tirion 发表于 2013-4-13 14:55

关于60950音压测试的一些问题

各位大大,
    请问一下,标准有如下叙述:
For music where the average sound pressure (long term LAeq,T) measured over the duration of
the song is lower than the average produced by the programme simulation noise, the warning
does not need to be given as long as the average sound pressure of the song is below the
basic limit of 85 dBA. In this case T becomes the duration of the song.

NOTE 4 Classical music typically has an average sound pressure (long term LAeq,T) which is much lower than the average
programme simulation noise. Therefore, if the player is capable to analyse the song and compare it with the programme
simulation noise, the warning does not need to be given as long as the average sound pressure of the song is below the basic
limit of 85 dBA.
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
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
above the basic limit of 85 dBA.

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。

xuehua_123 发表于 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。
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