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Pitch detection algorithms “give up” after very little

fft signal-detection pitch

modified 41 mins ago Community♦ 1

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2

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814

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How to “rotate the phase”?

fft phase ifft

modified 1 hour ago Community♦ 1

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4

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match a pattern in a stream of bits

cross-correlation pattern

asked 1 hour ago Yair M 101

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6

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4k

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Is there any practical application for performing a double Fourier transform? …or an inverse Fourier transform on a time-domain input?

fft signal-analysis fourier-transform hilbert-transform theory

modified 2 hours ago Laurent Duval 18.3k

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3

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9k

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Which one is the correct graph for $u[2-n]$?

discrete-signals

answered 2 hours ago Tony Tan 1

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210

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extracting MPEG-7 low-level audio descriptors using essentia

audio feature-extraction

modified 2 hours ago Community♦ 1

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Understanding 2D alignment using least squares

image-processing computer-vision

modified 2 hours ago Matt L. 53.7k

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2

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39

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Matlab and R functions for fft(): N-point FFT and dimension issue

fft frequency-spectrum self-study

modified 3 hours ago fina 25

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51

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Meaning of a formula about transient frequency bins

fft discrete-signals frequency-spectrum homework

modified 3 hours ago Community♦ 1

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2k

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Removing high pitch noise embedded in audio spectrum

filters noise noise-cancellation

modified 4 hours ago Community♦ 1

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1

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9

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Preprocess sound for voice recognition in Pocket Sphinx on Raspberry Pi 3

audio dsp-core speech-recognition voice audio-processing

answered 5 hours ago Nikolay Shmyrev 973

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44

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Reconstruct images from PCA reduced dimensions with NN

neural-network pca

modified 5 hours ago Community♦ 1

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46

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Matlab IIR cheby2 bandpass, problems with Magnitude

matlab filter-design infinite-impulse-response bandpass magnitude

modified 6 hours ago Matt L. 53.7k

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395

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Consider an ideal low pass filter $H(\omega)$, and the input to this filter is the periodic square wave $x(t)$. Find the output $y(t)$

lowpass-filter transfer-function fourier-series

modified 6 hours ago Community♦ 1

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