Department of Electronics and Communication Engineering

Signal and System Laboratory (EC393)

S.No.	Title	PO mapping	PSO mapping
	Design a bandpass filter using fdesign object which attenuates all frequencies outside the range 200-600 Hz. Apply it on audio signals of your choice. Plot the spectrogram of the result and produce the respective sounds	1, 2, 4, 5, 8, 9, 10, 12	1,2
	Write a Matlab function that: Uses the audio recorder functionality to record 5 secs of audio data. The process is repeated twice, i.e., two 5 secs audio segments are sequentially recorded. Create a stereo signal by placing each recoded segment in a separate channel. Play the stereo signal.	1, 2, 4, 5, 8, 9, 10, 12	1,2
	Write a Matlab function that: Uses audio recorder to record a number of audio segments, 1 sec each. For each recorded segment compute and plot (on two separate sub figures) the sequences of the short time energy and zero crossing rate features. Adopt a 40 ms frame.	1, 2, 4, 5, 8, 9, 10, 12	1,2