sound_matlab_matlab_project.pdf - ELEN 444-Ji Digital...

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ELEN 444-Ji: Digital Signal Processing Matlab Project, Due midnight, Wednesday, April 26 Jim Xiuquan Ji Intelligence obtained a speech communication recording of a terrorist. However, the signal is corrupted by sinusoidal noises from a siren. As a signal processing expert, you were asked to analyze the recording and remove the corruption as much as possible. Following the step-by-step instructions below and using your DSP knowledge learned in this class, design and implement Matlab programs to process the signal. Evaluation: Your projects will be evaluated based on all materials you turned in. In addtion, we will pick up the top 10 best projects and play them in the class. The whole class vote and the best three will receive a Best Sound Effect Award with the signatures of your classmates. 1. After Friday, March 24, go to the course website, download the data file proj444.wav. In Matlab, read in the data using ”[x,Fs,Nbits] = wavread( ’proj444’ );”. Play the sound using ”wavplay(x,Fs)” and listen to it. Note: Fs is the sampling rate.
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