Features

This is an implementation of the CQT1992v2 from nnAudio in JAX.

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cqt_transform

 cqt_transform (x, cqt_instance, output_format=None)

JIT-compiled CQT transform function.

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CQT1992v2

 CQT1992v2 (sr=22050, hop_length=512, fmin=32.7, fmax=None, n_bins=84,
            bins_per_octave=12, filter_scale=1, norm=1, window='hann',
            center=True, pad_mode='reflect', trainable=False,
            output_format='Magnitude')

JAX implementation of CQT1992v2 from nnAudio.

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conv1d_efficient

 conv1d_efficient (x, kernel, stride=1)

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create_cqt_kernels

 create_cqt_kernels (Q, fs, fmin, n_bins=84, bins_per_octave=12, norm=1,
                     window='hann', fmax=None, topbin_check=True, gamma=0)

Create CQT kernels in time domain.

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get_window_dispatch

 get_window_dispatch (window, N, fftbins=True)

Get the window function.

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broadcast_dim

 broadcast_dim (x)

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nextpow2

 nextpow2 (A)