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SOUND with MATLAB. SOUND INPUT [a, fa, na]= wavread(’mim-44100.wav') Sound data Sampling Frequency #bit representation.

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Presentation on theme: "SOUND with MATLAB. SOUND INPUT [a, fa, na]= wavread(’mim-44100.wav') Sound data Sampling Frequency #bit representation."— Presentation transcript:

1 SOUND with MATLAB

2 SOUND INPUT [a, fa, na]= wavread(’mim wav') Sound data Sampling Frequency #bit representation

3 a = … ……. fa = na = 16 Teknik Multimedia Fakultas Ilmu Komputer UI 3

4 SAMPLING sound(a, 44100) sound(a, 16000) sound(a, 11025) sound(a, 8000) 4

5 WRITING SAMPLED SOUND wavwrite(a, 30000, ‘gbush wav’) PLOTTING plot(a) Teknik Multimedia Fakultas Ilmu Komputer UI 5

6 Working with Frequency Domain - use discrete cosine transform or discrete fourier transform to convert from wave spatial signal to frequency domain; in matlab we could use fft function transform = fft(a, fs) fs = the number of sample frequency misal transform = fft (a, 41500) Learning Introductory Signal Processing Using Multimedia 6

7 SOUND with AUDACITY Demonstrated in class


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