northcliff_spl_monitor | Python Script that performs a basic sound pressure level

curl -sSL https://get.pimoroni.com/enviroplus | bash. sudo pip3 install matplotlib. sudo python -m pip uninstall sounddevice. sudo pip3 install sounddevice==0.3.15.
#This section makes a reference to your I2S hardware, adjust the card name
#to what is shown in arecord -l after card x: before the name in []
#You may have to adjust channel count also but stick with default first
pcm.dmic_hw {
type hw
card adau7002
channels 2
format S32_LE
}
#This is the software volume control, it links to the hardware above and after
#saving the .asoundrc file you can type alsamixer, press F6 to select
#your I2S mic then F4 to set the recording volume and arrow up and down
#to adjust the volume
#After adjusting the volume - go for 50 percent at first, you can do
#something like
#arecord -D dmic_sv -c2 -r 48000 -f S32_LE -t wav -V mono -v myfile.wav
pcm.dmic_sv {
type softvol
slave.pcm dmic_hw
control {
name "Master Capture Volume"
card adau7002
}
min_dB -3.0
max_dB 30.0
}