It is impossible to convert dB to dBA.
There is only a guess. Scroll down to related links and read "Correlation between sones und phons".
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How do I convert a .db file?
The weighting filter A takes off low frequencies. So the measured value in dBA must be less than in dB. Look up at "A-weighting - Wikipedia".
You can convert the loudness in sones to the loudness level in phons. To convert the sound pressure level in dB or dBA to loudness in sones is not possible. Scroll down to related links and read "Correlation between sones und phons".
You cannot convert DBi to DB because they are not related. DBi is only for decibels in an isotropic radiator, while DB is only for decibels in a dipole antenna.
If I understand the question, it isn't possible to convert dB (a unit of sound energy) to litres (a unit of volume).
wb = db/(db+100)
Frequency means cycles per second and tells you the pitch. dBA is a ratio of weighted sound pressure. There is no conversion possible.
using bode-m plots , one can tranfer dB magnitude to gain and gain to frequency
dba is a person or group of persons who manages the data nd defining db structure,storage structure, accessing methods nd backup techniques
0 dBrnc=-90dBm (1000Hz Toned)
the first convert the power in dBm to MW, the define of dBm=10 log (P MW) -10 log ( 1mw). example: let P=-2 dBm convert this to dB? answer: Pmw= inv log(-2/10)=0.630mw*1000 micw/mw=630 microw 10log(630)=28dB