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Welcome to DSPRelated.com !

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 |
See article at http://www.dsprelated.com/showabstract/3639.php for the theory....

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 ...

Adding a Controlled Amount of Noise to a Noise-Free Signal
by Rick Lyons |
The following gives two snippets of Matlab code. The first snippet is a function whose inputs are: (...

Computing the Nth Roots of a Number
by Rick Lyons |
In Matlab when we want to compute the square root of a number we use the 'sqrt()' command. For exa...

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

Peak/Notch Filter Design
by |
This function will generate the coefficients for a single IIR biquad that is a "peak/notch" design.&...

Raised-cosine window for OFDM intersymbol transitions
by Markus Nentwig |
Calculates a raised-cosine window pair for OFDM windowing. Results in a smooth transition between sy...

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

Phase and sampling relationship in digital demodulation
by engrmasood2002 in Comp.DSP on Jan 29 2015
Hi I tried to demodulate FSK (8 bit uart data caller id) according to the theory but was not succe... Phase and sampling  relationship in digital demodulation

Calling dft from numerical receipies in C
by in Comp.DSP on Jan 28 2015
I was reviewing a code - it acknowledges that the subroutine for dft was taken from numerical receip... Calling dft from numerical receipies in C

Update on Think DSP, and an explanation of the missing fundamental effect
by AllenDowney in Comp.DSP on Jan 28 2015
Last week I posted blog article on Chapter 4 of Think DSP, which is about noise: http://thinkdsp.... Update on Think DSP, and an explanation of the missing fundamental effect

Speech proceesing of Stereo Vs Mono sound?
by in Comp.DSP on Jan 26 2015
When speech files are given and turned out that some are stereo, am I correct to assume that the two... Speech proceesing of Stereo Vs Mono sound?

Please vote for my 3 Feature Requests in the Adobe Audition Forum
by Ramon F Herrera in Comp.DSP on Jan 25 2015
=========================================== "Does Audition perform subtraction of two signals/c... Please vote for my 3 Feature Requests in the Adobe Audition Forum

Interpolating via a "smoothness" criterion.
by in Comp.DSP on Jan 25 2015
A while back I was faced with the problem of interpolating a curve, which I= wanted to do in such ... Interpolating via a

Classic FM Demodulation, using Matlab
by all4dsp in Comp.DSP on Jan 24 2015
I've got a real voltage versus time waveform (e.g. xr) of a carrier frequency that is FM modulated. ... Classic FM Demodulation, using Matlab

How can I measure/characterize the color of my noise?
by Ramon F Herrera in Comp.DSP on Jan 24 2015
This is a multi-part message in MIME format. --------------030208020708090301040807 Content-Type: ... How can I measure/characterize the color of my noise?

What if the downsampling factor is not an integer?
by DigitalGeek in Comp.DSP on Jan 24 2015
I have developed a function which down samples an input signal.Say I have an input signal with a sam... What if the downsampling factor is not an integer?

Upconversion of digital signal
by steve_0 in Comp.DSP on Jan 23 2015
Hey, I am just working a problem regarding digital upconversion and I have encountered a problem... Upconversion of digital signal

More Discussions...