python3 foobar18eq.py \
  -f "AKG K701" -f "Sennheiser HD 800" \
  -t "AKG K812" -t "HIFIMAN HE1000 V2" \
  -r 9 -l 4
# list all the "from" & "to" targets, ratio=9: maximum adjustment, limit=4: 2^4=16, range (-16,+16) db

python3 foobar31geq.py -f "Sennheiser HD 800" -t "HIFIMAN HE1000 V2" -r 9 -l 4

python3 wavelet.py -f "Sennheiser HD 800" -o "wavelet_SnHD800" -r 9 -r 6
# from one headphone to all others with 2 different adjustment ratios, and to a specific output directory