以dB SPL测量声卡输出 [英] Measuring sound card output in dB SPL

问题描述

我正在使用XNA框架的soundInstance对象播放.wav文件。声音音量，即soundInstance.Volume介于0f-1f之间。我想将这些值转换为相应的dB-SPL。请帮我。我没有得到它。

I am Playing a .wav file using soundInstance object of XNA framework. Volume of sound i.e. soundInstance.Volume lies between 0f -1f. I want to Convert these values to corresponding dB-SPL. Please help me. I am not getting it.

推荐答案

我不相信这是可能的。 dB-SPL在很大程度上取决于系统附带的扬声器。我可以在控制面板中将音量调高，扬声器音量一直向下，等等。想想汽车音频比赛的工作方式，dB很大程度上取决于扬声器/功放，不一定是主机。

I don't believe this is possible. dB-SPL depends greatly on the speakers attached to the system. I can have my volume turned all the way up in the control panel, and my speaker volume all the way down, etc. Think the way car audio competitions work, dB is dependent greatly upon the speakers/amps, not necessarily the head unit.

您需要了解dB是相对衡量标准： http://en.wikipedia.org / wiki / Decibel [ ^ ]。

-SA

You need to understand that dB is relative measure: http://en.wikipedia.org/wiki/Decibel[^].

—SA

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