i am looking for discrimination of speech from animal sound if you take a 150ms frame of speech and bird as shown below, what feature can i extract from them so that i can effectively state the difference
zero crossings ? cross correlation of successive frames seems high in bird sound ? isn't it any other feature from your side ?
one more example in above fig black-speeches,yellow siren,red bird,safron heavy wind the spikes are foot steps
above figure shows the difference in formant positions on spectrogram in bird sounds the formants are differently spaced and less formants
will anything could be extracted from this analysis
the reason is i am looking for unsupervised(with out any training or SVM) speech discrimination form animal sounds because both are voice but computers cant classify the difference unless they are trained by any nueral network which need huge memroy and training database