Questions tagged [signal-processing]
AKA digital signal processing (DSP). A signal is an information-carrying wave, but in the digital sense, a 'signal' refers to either received or transmitted streams/blocks of data, commonly representing real-world quantities such as audio levels, luminosity, pressure etc over time or distance. 'Processing' is the act of altering, analyzing or characterizing the data to retrieve/modify information inherent in the signal in question.
16 questions
1 vote
1 answer
66 views
Convert mathematical signal to sound
I use Ubuntu 22.04. Is there an application for converting mathematical periodical sin/cos formula (functions) to sound? For example is there a way for playing these signals: cos(2π · 440 t) cos t + ...
- 247
2 votes
1 answer
133 views
Modbus frame analyzer
I am currently working with an oscilloscope capable of analyzing a signal using a few protocol's standards (like RS232, SPI, I2C etc...) except for Modbus and RS485. I need it to determine wether a ...
- 23
2 votes
0 answers
245 views
Looking for open source pitch modification algorithm with formant preservation?
For the past few weeks, I've been trying to find an open source algorithm which can be used to change the pitch of a vocal recording, similar to autotune. I have found many open source libraries and ...
- 121
3 votes
1 answer
98 views
Windows Application supporting Function Block Diagram (FBD) for coding Embedded Systems
What Windows applications supporting Function Block Diagram (FBD) graphical languages for coding Embedded Systems are commercially available? According to IEC 61131-3 there are 5 programming languages:...
- 31
1 vote
1 answer
59 views
Software for analytical and computational physics with a DSP nuance
What software can I use for: compute complex formulas which result could be not analytical, thus requiring iteration methods and substantial computational cost (ex. quantum mechanics analysis) easily ...
user63560
0 votes
1 answer
100 views
Library for applying a non-uniform DFT over simple time series data from sensors
I have real-time data from sensors monitoring pumps. I need to analyze the duty-cycle of the pumps in the frequency domain. I am pretty rusty in FFT, so I was hoping to find a C++ or Python library ...
2 votes
0 answers
30 views
Is there a python TTS library that can set the fundamental frequency of the output?
Is there a python TTS library that can set the fundamental frequency of the output? Or should I manually recognize the frequency and do FFT and adjust the fundamental frequency? (I am trying making a ...
- 191
4 votes
1 answer
72 views
Software for "live" FFT with movable sliders
I am looking for a software that displays the FFT of a signal and provides a GUI which allows me to conveniently move or resize the window to select only a part of my signal while updating the FFT "...
- 41
1 vote
0 answers
171 views
C++ library for digital signal modulations like QPSK/16QAM/64QAM/BPSK/PSK
I have found interesting C++ library that shares basic digital signal processing operations: https://github.com/vinniefalco/DSPFilters Is there any C++ library that contains modulations like QPSK/...
- 11
2 votes
0 answers
1k views
Application that can detect GSM signal proximity
15 years ago, I ever installed an application on my Symbian cellphone. That application: can detect any GSM cellphone signals, will list all GSM signal (it written as id on this app like mac address) ...
Angel Verawaty
1 vote
1 answer
85 views
ECG beat detection
I am looking for a program or script that detect beat given an ECG signal. Preferably working on Windows, gratis and open source.
- 38.5k
1 vote
1 answer
1k views
Higher order spectral analysis in python
Are there higher-order spectral analysis software which can be used from python? By higher-order spectral analysis I mean: (Cross) Bispectral analysis (Cross) Bicoherence etc. The intended use would ...
- 121
1 vote
0 answers
37 views
Free Wi-Fi mapper and diagnostic software
I'm looking for something like NetSpot to create a map that visually shows Wi-Fi parameters (like signal, SNR, etc). Requirements Record Wi-Fi data in an easy way that can be done in different ...
- 481
4 votes
1 answer
353 views
Brightness histogram of a video
I want an histogram of the brightness of a video. I define brightness of an image as the sum of RGB values of all its pixels, divided by 3, divided by the number of pixels. The program would ...
- 20k
3 votes
0 answers
216 views
GPU library to compute continuous 1-D wavelet transforms
I need to compute a large amount of continuous 1-D wavelet transforms (CWT). I'm looking for a GPU library to compute CWT. So far I have only found GPU libraries to compute discrete wavelet ...
- 38.5k