finish basic task (758e3050) · Commits · 袁通 / EE205 Signal And System Project

Project1/Task2/bandpass_filter_1.png

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Original line number	Diff line number	Diff line
		@@ -21,8 +21,8 @@ hold on

		for i = 1:length(lpf)
		yn = tone_vocoder(N, Freq_low, Freq_high, Freq_sample, lpf(i), sample);
		yn = fftshift(fft(yn));
		yn_abs = abs(yn);
		yn_shift = fftshift(fft(yn));
		yn_abs = abs(yn_shift);

		%plot yn_abs
		subplot(4, 1, i);
		@@ -31,7 +31,7 @@ for i = 1:length(lpf)
		title(sprintf('Tone Vocoder:N = 4, f_{lpf}=%d Hz',lpf(i)))

		xlabel('Frequency(Hz)');ylabel('Magnitude');
		audiowrite(sprintf('task2_N=4_lpf=%d.wav',lpf(i)),real(yn),Freq_sample);
		audiowrite(sprintf('task2_N=4_lpf=%d.wav',lpf(i)),abs(yn),Freq_sample);


		grid on

(102 KiB)

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(102 KiB)

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