https://www.mathworks.com/help/audio/ug/octave-band-and-fractional-octave-band-filters.html
Octave-Band and Fractional Octave-Band Filters - MATLAB & Simulink
Design octave-band and fractional octave-band filters, including filter banks and octave SPL meters.
octave bandfractionalfiltersmatlabsimulink
https://www.data.gov.uk/dataset/30b539df-fad0-4652-911e-92af34af0a1d/road-noise-octave-band-data-england-round-4
Road Noise - Octave Band Data - England Round 4 - data.gov.uk
road noiseoctave bandround 4dataengland
https://www.data.gov.uk/dataset/ea8429bf-5272-4ae3-8945-96f585d67273/rail-noise-octave-band-data-england-round-4
Rail Noise - Octave Band Data - England Round 4 - data.gov.uk
octave bandround 4railnoisedata