features last year probably soon as standard found that by learning rather than hand engineering the features he was able to significantly outperform the previous AVR all right how about audio it turns out you can apply similar ideas to audio so this is a spectrogram which is a different representation for audio you can take slices of spectrograms and apply sparse coding to that it turns out if you do this then on this is a dictionary of basis functions learning for speech I guess I'm not an excellent speech but in impervia probably a