Non-uniform filter banks: Log frequency ·Log.Freq… scale: close to human ear filter 1 filter 2 filter 3 filter 4 Center freq 300 600 1200 2400 bankwidth 200 400 800 1600 Filter output v1 v2 V3 200400800 1600 fre eq ..(HZ 3200 Feature extraction v 9aNon-uniform filter banks: Log frequency • Log. Freq... scale : close to human ear filter 1 filter 2 filter 3 filter 4 Center freq. 300 600 1200 2400 bankwidth 200 400 800 1600 Feature extraction, v.9a 9 200 400 800 1600 3200 freq.. (Hz) v1 v2 v3 V Filter output