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Use matlab pls An audio equalizer improves the audio quality by emphasizing or deemphasizing specific bands of an audio signal. This is accomplished by first
Use matlab pls
An audio equalizer improves the audio quality by emphasizing or deemphasizing specific bands of an audio signal. This is accomplished by first decomposing the signal into certain bands by digital filters as shown in the figure. The figure shows that the input signal is decomposed into five bands by one lowpass filter (LPF), four bandpass filters (BPF and one highpass filter (HPF). The signals in each band are then amplified by a desired gain (G, G2. ..Gs) to emphasize or deemphasize them. Finally the signals are reassembled (summed) and delivered as the output. I PF BPF BPF G4 BPF Gs HPF We would like to design an audio equalizer as shown in the figure above. The specification of the audio equalizer is as follows. 1. We will use the audio signal provided by MATLAB, the file 'handel mat.' The audio signal is sampled at a rate of 8192Hz The audio equalizer will divide the audio bandwidth into 5 equal bands as follows 2. 250Hz 500Hz band 1 band 2 250_ 500 1000 2000 1000Hz band 3 2000Hz band 4 4096Hz band 5 3. Assume t ha passband and stopban d edge frequencies a re +55 or -55Hz away from the cutoff frequencies. 4. Design the 5 IIR filters as Butterworth filters using MATLAB functions. Assume that the band e respective filters. What are the digital frequencies that correspond to each of the edge frequencies dge frequencies given in the specification are the cut-off frequencies of the 5. All the filters have a 3dB of passband ripple and 30dB of stopband attenuation. What is the order of each of the filters? Write the digital transfer function of each filter 6. Plot the frequency response of all the filters in one plot. Label y I your frequency axis in Hz. An audio equalizer improves the audio quality by emphasizing or deemphasizing specific bands of an audio signal. This is accomplished by first decomposing the signal into certain bands by digital filters as shown in the figure. The figure shows that the input signal is decomposed into five bands by one lowpass filter (LPF), four bandpass filters (BPF and one highpass filter (HPF). The signals in each band are then amplified by a desired gain (G, G2. ..Gs) to emphasize or deemphasize them. Finally the signals are reassembled (summed) and delivered as the output. I PF BPF BPF G4 BPF Gs HPF We would like to design an audio equalizer as shown in the figure above. The specification of the audio equalizer is as follows. 1. We will use the audio signal provided by MATLAB, the file 'handel mat.' The audio signal is sampled at a rate of 8192Hz The audio equalizer will divide the audio bandwidth into 5 equal bands as follows 2. 250Hz 500Hz band 1 band 2 250_ 500 1000 2000 1000Hz band 3 2000Hz band 4 4096Hz band 5 3. Assume t ha passband and stopban d edge frequencies a re +55 or -55Hz away from the cutoff frequencies. 4. Design the 5 IIR filters as Butterworth filters using MATLAB functions. Assume that the band e respective filters. What are the digital frequencies that correspond to each of the edge frequencies dge frequencies given in the specification are the cut-off frequencies of the 5. All the filters have a 3dB of passband ripple and 30dB of stopband attenuation. What is the order of each of the filters? Write the digital transfer function of each filter 6. Plot the frequency response of all the filters in one plot. Label y I your frequency axis in HzStep by Step Solution
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