9. Normalised spectrogramΒΆ

$ gwpy-plot spectrogram \
    --chan L1:GDS-CALIB_STRAIN \
    --start 1126258950 \
    --duration 1024 \
    --norm \
    --cmap Spectral_r \
    --imin .25 \
    --imax 4 \
    --interactive
Normalised spectrogram