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DSPRelated.com has been around since 1999 and has become over the years the most popular independent internet resource for Digital Signal Processing (DSP) engineers around the world.
You are invited to create an account with us (quick and free). Doing so will allow you to contribute to the the site by rating DSP books and DSP Internet resources, as well as participate to one or many DSP related discussion(s).

Most Popular DSP Code Snippets

Computing FFT Twiddle Factors
by Rick Lyons |
This text, figures, and code snippet are also available in downloadable PDF format Typical applic...

Saving a Matlab figure to file using command-line
by |
Once again, this is another example that Matlab does weird things with its figure window.  If y...

Discrete Haar Wavelet Transform
by Duraisamy Sundararajan |
See article at http://www.dsprelated.com/showabstract/3639.php for the theory....

Zero Crossing Counter
by |
In some DSP applications, it can be very helpful to know how many times your signal has crossed the ...

Generate ideal QPSK..64QAM symbol error rates (reference result)
by Markus Nentwig |
Calculates the symbol error rate of QPSK/16QAM/64QAM/256QAM/1024QAM modulation for additive white Ga...

Fitting Filters to Measured Amplitude Response Data Using invfreqz in Matlab
by Julius Orion Smith III |
In the 1980s I wrote the matlab function invfreqz that implements a fast (FFT-based) equation-error ...

Signal fitting with subsample resolution
by Markus Nentwig |
Update: The most recent version can be found here and a demonstration here.The downloadable code is ...

Halfband Filter Design with Python/Scipy
by Christopher Felton |
The following code snippet is an example how to design a half band filter.  Half band filters a...

Basic Kalman filter
by Sylvain B |
This is the most basic implementation of a Kalman filter. For measured position, velocity and accel...

Echo Filter
by Miguel De Jesus |
An Audio Echo Filter is an FIR filter that repeats a sound after a given Delay attenuating the repet...

More Code Snippets...

DSP Discussion Groups

OT: A good laugh
by in Comp.DSP on Apr 20 2014
Perhaps many of you have been in meetings like this... http://www.slapyourselfcomedy.com/the-expe... OT: A good laugh

Convert to higher sample rate
by B in Comp.DSP on Apr 19 2014
Any opinions on the easiest way to convert an audio track to a higher sample rate? Mostly likely x... Convert to higher sample rate

How many ways to orient a cube -- check my math
by Tim Wescott in Comp.DSP on Apr 19 2014
Imagine I have a table, a compass, and one cube. On this cube is marked out the 3-D Cartesian coo... How many ways to orient a cube -- check my math

the 0th and 1st derivative of a scary function
by robert bristow-johnson in Comp.DSP on Apr 19 2014
in case anybody wonders why my participation might be a little spotty of late, take a look at thi... the 0th and 1st derivative of a scary function

IIR Coefficient Calculation
by ger_lough in Comp.DSP on Apr 19 2014
I am having difficulty finding any info on how to calculate digital IIR filter coefficients. I know ... IIR Coefficient Calculation

Errors in phase due to wrong alignment/post processing?
by Peter Mairhofer in Comp.DSP on Apr 18 2014
Hi, I hooked together a Vector Signal Generator (VSG) and a Vector Signal Analyzer (VSA). I c... Errors in phase due to wrong alignment/post processing?

Cheap spec an using an RTL-SDR
by Les Cargill in Comp.DSP on Apr 18 2014
http://hansvi.be/wordpress/?p=91 -- Les Cargill ... Cheap spec an using an RTL-SDR

Data extrapolation to reconstruct signal
by fffranco in Comp.DSP on Apr 18 2014
I try to expose my problem from the beginning: My goal is to get a continuous respiration signal de... Data extrapolation to reconstruct signal

Pitch Estimation using spectral Autocorrelation method.
by in Comp.DSP on Apr 16 2014
please help me to find pitch of a speech signal using spectral autocorrelation method. Thank You ... Pitch Estimation using spectral Autocorrelation method.

Generate digital dither
by B in Comp.DSP on Apr 13 2014
Any recommended algorithms for generating digital dither signals? How is this normally done? ... Generate digital dither

More Discussions...