DSP#8 problem to find 4 point DFT using matrix method or Linear Transformation method || EC Academy

In this lecture we will understand problem to find DFT using matrix method or Linear Transformation method in Digital Signal Processing.
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[@SivaKumar-gd9zk]

Your lectures are very useful and clear Sir. Sir, how to divide unit circle and evaluate method-2 for 3pt. Dft

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You will not have 3 point dft... dft will be 2pt 4pt 8pt 16pt and so on....
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[@SivaKumar-gd9zk]

Why odd pt dft is not existing Sir

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Odd pt dft exist... you can solve using formula method or matrix method. For example for 3 pt dft......Use in formula 2pi/3 or solve by taking 3x3 matrix

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Thank you Sir. Understood

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[@naveencherry5767]

Sir.... Can you please tell
How many methods are there to find out DFT by mentioning method names

[@Ruuuuu0o0]

In the calci im not getting one (i kept in complex mode only)

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Tqsm sir

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WATCBHING 3 hour before exam

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Sir I'm not getting that twiddle factor values in calculator

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[@amazingplaces5220]

Sir how to divide the circle for triddle factor if it is 8 point DFT?

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Make 8 equal divisions….
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Saved my cat man

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[@HARSIKA7]

how to compute 4 point DFT of the sequence x(n)= cos(n Pi/2)?

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Put values from 0 to 3 for n in cos term and find x(n) then you can solve…
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[@brothergamers9286]

Sir for w4^2 how to calculate

[@Krishnamultiverse4016]

Sir small doubt ... calc part I didn't get ..like I'm getting a different value.. I kept the calc on cmplx and still I'm getting a different value.. hopefully u see the message sir tomo I have dsp exam.

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Keep the calculator in complex and radians mode… you will get correct answer…
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[@Krishnamultiverse4016]

@@ECAcademy tysm..

[@harshdadwal3088]

Sir, is method 2 only applicable to 4 point??

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No... you can apply for 8 point and 16 point dft also...
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[@nomad4766]

how to solve method2 for 6 & 8 pt.???

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Plz, watch the next videos in the playlist to understand clearly...
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hello, can you help me for sistem Taylor-Fourier?

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[@mohammadkaif565]

Error in multiplication of third row. It would be 1 rather than 0

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The answer is correct… 1 - 1 = 0
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انقرة بنقرة

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Thank you sir

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