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.

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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 ...
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32 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 ...
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Is there a software that can remove background music and keep the talking in real time?

I watch Twitch streams every day. Most of them listen to horrific, ear-torture "music" which is utterly unbearable. Asking them to turn it off results in a ban, resentment or being ignored at best. So ...
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Aligning or synchronizing redundant footage from multiple sources

I have footage from two cameras filming the same show. Because of the EU restriction tariff rules on length of files in video equipment, they are split into multiple clips: four for one DSLR and 5 for ...
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35 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 ...
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8 views

Audio-Speeh Signal Processing

I am experimenting with Multi-modal content recommendation for some TV programs. For now i am working in python on audio features to find out the programs similarities with each-other. I want to ...
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1answer
13 views

Library for applying a Nonuniform 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 ...
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Libraries for Noise Cancelling in C?

Currently, I am developing smart speaker using ReSpeaker Core v2.0. And I have facing some problem. I need algorithm to do noise cancellingin C/C++ Or any recommendation about any libraries available ...
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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 ...
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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 "...
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38 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/...
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515 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) ...
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75 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.
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826 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 ...
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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 ...
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1answer
291 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 ...
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157 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 ...
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323 views

Python library to compute continuous 1-D wavelet transform

I want to compute the wavelet of a signal with different scales and timeshifts. In Matlab using the cwt() function (Continuous 1-D wavelet transform) provided in the Wavelet Toolbox I can specify the ...