Top "Signal-processing" questions

AKA digital signal processing (DSP).

Can't find the right energy using scipy.signal.welch

For a given discret time signal x(t) with spacing dt (which is equal to 1/fs, fs being the sample …

python numpy signal-processing fft discrete-mathematics
Generating Swept Sine waves

How can I formulate an equation for generating a swept sine wave. I am new to signal processing and cannot …

c signal-processing sound-synthesis
How to find the fundamental frequency of a guitar string sound?

I want to build a guitar tuner app for Iphone. My goal is to find the fundamental frequency of sound …

audio signal-processing guitar
Voice Detection in C#

I'm looking for a simple C# real-time voice detection library. The input should be an audio stream, and the output …

audio real-time signal-processing speech-recognition voice
Most efficient way to filter a long time series Python

I have a large time series, say 1e10, that results from recording neural activity, i.e. voltages. Before doing further …

python numpy python-2.7 signal-processing scientific-computing
Measuring the similarity between two irregular plots

I have two irregular lines as a list of [x,y] coordinates, which has peaks and troughs. The length of …

python matplotlib signal-processing correlation cross-correlation
Computing a power spectrum

I would like to compute a power spectrum using Python3. From another thread about this topic I got the basic …

python numpy signal-processing fft spectral-density
What is a good approach for extracting portions of speech from an arbitrary audio file?

I have a set of audio files that are uploaded by users, and there is no knowing what they contain. …

linux audio signal-processing voice voice-detection
Audio libraries for digital signal processing in C#

My problem is this: I'm developing a reasonably small application (which needs to be able to grow in the future, …

c# signal-processing xaudio2
Pydub - How to change frame rate without changing playback speed

I have a couple audio files that I open in Pydub with AudioSegment. I want to decrease the audio quality …

python audio signal-processing frame-rate pydub