Top new questions this week:
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Hopefully this isn't considered too off-topic. I'm working in industry these days and came up with a solution to a signal processing problem we'd been facing. I'd like to get a sense as to whether ...
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Please excuse me if my terminology is wrong. I'm from a music production background and have no experience in signal processing.
I was wondering if it was possible to stretch out the overtones ...
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The frequency spectrum of cosine function is as below.
While adopting a square window function to the cosine function, it is same as implementing convolution of their frequency spectrum as below. The ...
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Given I have coefficients a0, a1, a2, b1, and b2, defining the difference equation for a digital filter as:
y[n] = a0 * x[n] + a1 * x[n - 1] + a2 * x[n - 2] - b1 * y[n - 1] - b2 * y[n - 2]
Which ...
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This is a problem I encountered some time ago while doing my thesis, which still now, I am not sure to understand.
By then, I was implementing the circular correlation in an FPGA using this Xilinx FFT ...
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I am reading wikipedia article about digital signal processor and as shown in end of attached snapshot
." Most general-purpose microprocessors can also execute digital signal processing ...
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I'm an animator trying to get a program that will use machine learning to automate the lip syncing process. The program I need made will have two files given to it: a seed, and an audio file.
The seed ...
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Greatest hits from previous weeks:
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According to the cross-correlation theorem : the cross-correlation between two signals is equal to the product of fourier transform of one signal multiplied by complex conjugate of fourier transform ...
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This has been one of the holes in my cheddar cheese block of understanding DSP, so what is the physical interpretation of having a negative frequency?
If you have a physical tone at some frequency ...
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I'm have a PSD graph of dB/hz vs. frequency in hz. I want to convert the dB/hz unit to dB, but I can't find any way of doing it. Help would be much appreciated!
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Is it possible to implement a moving average in C without the need for a window of samples?
I've found that I can optimize a bit, by choosing a window size that's a power of two to allow for ...
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Not sure if this is the right place to ask, feel free to move it if any other site suits this better.
Anyway I am referring to QAM modulation used in US Cable TV. I know it comes under Annex B which ...
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I read the following on Wikipedia:
Power spectral density:
The above definition of energy spectral density is most suitable for
transients, i.e., pulse-like signals, for which the Fourier ...
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Why are we using circular convolution in DSP?
What's the main solid reason for the use of it in digital
processing?
Why does the concept of circular convolution come more often than
linear ...
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Can you answer these questions?
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First, I would like to point out that I am a complete outsider to the field of signal processing, so please bear with me and go easy on the jargon :) I nevertheless decided to post here, because I ...
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Signals noob here! I'm dipping my toes into your world by trying to recreate the Shazam algorithm, and I have a quick practical question:
When creating a spectrogram, is it better to take in a whole ...
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Confused about a few topics w.r.t. differential encoding/decoding. First, consider the below BER curve taken from wikipedia ( https://en.wikipedia.org/wiki/Phase-shift_keying ) comparing BPSK/QPSK and ...
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