Why are left and right channels not displayed separately,like foobar2000?

[tianakack]

Why are left and right channels not displayed separately,like foobar2000?

[cboxdoerfer]

I mainly added the features I was interested in and this simply wasn't among them.

[x00FB]

@tianakack check this fork out: https://github.com/x00FB/ddb_stereo_spectrogram