List of symbols

Symbol	Name of the symbol	Unit
$I_0$	reference sound intensity	$\mathrm{W/m^2}$
$I_1$	measured sound intensity	$\mathrm{W/m^2}$
$L$	sound intensity level	$\mathrm{dB}$
$L_v$	voltage level	$\mathrm{dB}$
$V_0$	reference voltage	$\mathrm{V}$
$V_1$	measured voltage	$\mathrm{V}$
$t$	temperature	$\mathrm{°C}$
$v$	velocity of sound	$\mathrm{m/s}$