Heavily inspired by the recent post by /u/perone I developed a Keras callback that can easily be included during training for all you Keras users out there. During training the callback will convert the gradient norms of the network layers to a tone which can be saved along with the spectrogram of the audio after training is completed.

Additionally, I looped over a parameter space by varying the activation function, optimizer, and learning rate. Most notably, tweaking the activation function and optimizer produced quite interesting results.

• Github
• Spectrogram samples
• Audio samples