Lecture3

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File: Lecture3

Periodic Signals – SPFirst Sec. 3-2 Beat Notes • Occurs when multiplying two sinusoidal signals Audio: singing when holding a note, some musical instruments • Communications: amplitude modulation (AM radio ...

Filetype Power Point PPTX | Posted on 08 Sep 2022 | 2 years ago

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...Periodic signals spfirst sec beat notes occurs when multiplying two sinusoidal audio singing holding a note some musical instruments communications amplitude modulation am radio wi fi example x t cos pt sin spectrum rewrite as sum of complex sinusoids jp o e c oe j f to ej p po equal coscpt fs ts pi sound plot one period gcd n waveforms signal has if for all also with periods etc and smallest positive is called the fundamental frequency computed synthesize add or more cosine waves harmonic frequencies aa pft where kth k finding largest such that i consider hz notation speech alternate synthesis formula expand cosines into exponentials euler s explicitly represents negative u jpkf pkft ae reiaae y jfk ah vowel from page http dspfirst gatech edu chapters spect demos matlab command comment out lines start capture imwrite combines components at revisited recording being spoken m d r g how close did synthesized like...

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Category: Uncategorized / Uncategorized
Posted on: 08 Sep 2022 | 2 years ago
Tag: download pptx, lecture3,
Filetype: PPTX
File size: 2.11 MB
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