男歌手涉嫌黑恶势力？

最近，贵州省铜仁市公安局发布了开发者_高级运维相应的公告，向社会公开征集网红歌手野马等人涉黑涉恶违法犯罪线索。在公告里面可以看到，公安局对于这件事情已经组成了专案组侦办，调查许艺舟，许义杰，黄宪友等人涉

法冶社会谁来管管这些黑恶势力？

How to get a volume measurement of iPhone recording in dB, with a limit of at least 120dB

I am trying to make a simple volume meter for the iPhone. I want the volume to be displayed in dB. When using this turorial, I am only getting measurements up to 78 dB. I\'ve read that that is because