Newest Questions

I’m currently working on my undergraduate thesis, which is related to digital signal processing. The goal of my project is to create a program that can “listen” to piano recordings and convert what it ...

I have absolutely no experience with this field but have been trying to analyze some audio files where someone broke into my house (long explanation follows but can be skipped; more included because ...

I've been learning a bit about DSP recently and tried to build a working 16-QAM (or M-QAM) modem in GNU Radio, but haven't been successful. I think the issue might be high noise caused by some of the ...

I'm trying to set up simultaneous RX and TX using the two front-ends on a USRP B210 using the UHD Python API. This resource recommends using separate threads for RX and TX, and this one says that UHD ...

Consider a band limited function $f(x)$ in $L_2(\mathbb{R})$ with frequency support in $[-B,B]$ . For small delays $\delta$ it is straightforward to show that $f(x)$ and $f(x+\delta)$ are not ...

This question asked for the solution of the following problem: Design an FIR equiripple halfband lowpass filter with unity gain at DC and with infinite attenuation at Nyquist. The Remez algorithm ...

In an audio (or likely any data transfer context) processing scenario, at times it is necessary for an internal process which takes a fixed amount of data N to be wrapped by an external process which ...

Thank you for your time and I'll apologize for probably not explaining this problem well enough, but here goes. I have 20000 hemispheres of antenna patterns for 1x1 degree pointing directions and I ...

In this setup, I’m using a MATLAB filter with flat coefficients applied across n channels. The left and right channels are then mixed to form a stereo output, which should ideally contain only the ...

I have a very annoying Problem (I am very much a noob when it comes to dsp so please bear with me): I have a periodic signal with an amplitude roughly one. However, at periodic intervals, the signal ...

I need to analyse some spectra obtained using FT-IR (Fourier Transform Infrared) Spectroscopy. I am mainly interested in increase/decrease of a specific molecule after some sort of procedures. I am ...

It is probably a basic question, but why isn't a Dirac pulse considered white noise ? To be fair, I intuitively wouldn't consider it as such, but the defining characteristic of white noise is that the ...

If I'm trying to create a cross-synthesis/spectral morphing effect between two signals in real-time using an stft (similar to a plugin like Melda's MMorph or Zynaptic's Morph 3), what would be the ...

Upsampling a spike [100 0 0 ...] with rfft - irfft gives quite different results for input lengths even or odd. Here's a plot for 100 and 101: Why the difference ? ...

Specifically I'm unsure about a factor of 2 scale factor when converting the measured insertion loss to a double sided spectrum, necessary for the ifft. In the past I have always believed that ...