iphone - can i have mic detection value in decibel range 0.0 to 120.0 -


Now I'm using class AVAudioPlayer. But I still can not find the right value in decibels from Desibel range 0.0 There is no way to get value in 120.0 (-0.0 to -120).

If yes, then tell me some body ....

0dB, By consensus, the maximum dimension or SPL is considered, so generally the dimensions are given in the negative decibel. Because decibel is a logarithmic unit (+10 dB2 is a factor), you can not define 0dB as 'mute' in any meaningful way.


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