Bajardi: Ikromjonov K. Guruh: 514-16 Tekshirdi: Toshkent-2020 mundarija

wavwrite (V2, f, b, 'Soundl.wav');

Bu yerda birinchi dalil - tovush namunalarining matritsasi (monofonik tovush uchun bu vektor), ikkinchisi - namuna olish chastotasi, uchinchisi - namunalarning bit chuqurligi va oxirgi - fayl nomi. Agar siz faylga yo'l ko'rsatmasangiz, u holda u MATLAB paketining joriy ishchi katalogiga yoziladi.

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4. 
   Erkak va ayol nutqi ustidagi izlanishlar.
   

Masalan, ayollarning ikkita va erkak tovushlarining ikkita namunasini oling. MATLAB to'plamida biz ularning spektrramlarini, amplituda va fazali spektrlarini tuzamiz. Amplituda spektri quyidagicha:

[s, fs] = wavread (c:\1\female1f.wav');

spec = abs (fft(s));

spec = spec (1:end/2);

freq = (fs/2)*(1:length(spec))/length(spec);

plot (freq, spec);

xlabel ('Frequency: Hz'); ylabel ('Amplitude spectrum');



3-Rasm. Female1f.wav ning amplitudaviy spektri.

Fazali spektr:

[s, fs] = wavread (c:\1\female1f.wav');

spec = phase (fft(s));

spec = spec (1:end/2);

freq = (fs/2)*(1:length(spec))/length(spec);

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plot (freq, spec);

xlabel ('Frequency: Hz'); ylabel ('Phase spectrum');



4-Rasm. Female1f.wav ning fazali spektri.

Biz shunga o'xshash operatsiyalarni boshqa ovoz namunalari bilan bajaramiz.