cqt returns complex number even with

[polyrhythmatic]

Working with the current master branch 1788566 and I've noticed that the CQT always returns complex numbers even with the flag "real=True" set.

I know there's been work done recently on CQT recently GH-165 and I'm wondering if this got changed along the way.

Am I doing something wrong here?

over_sample = 3
res_factor = 1
fmin = librosa.midi_to_hz(12)
const_q = librosa.cqt(y=y_val, sr=sample_rate, fmin=fmin, n_bins=int(8 * 12 * over_sample), filter_scale=res_factor, bins_per_octave=int(12*over_sample), hop_length=128, real=True, scale=True)

[bmcfee]

Good catch -- you should be getting a deprecation warning though. Are you?

real is deprecated in 0.5 and will be removed in 0.6. That it isn't working is a bug (tagged now, thanks), but you may as well future-proof by taking np.abs(librosa.cqt(...)) instead.

[polyrhythmatic]

Here's where I admit to running the script in Node and not paying attention to stderr after getting it set up...

Thanks for the heads up and simple solution with np.abs, and thanks for the inverse cqt! Great function.