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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

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....

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

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...

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...

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

Flanger Audio Effect
by Gabriel Rivas |
This is an implementation of the flanger effect using my previous entry that is a fractional delay...

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

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: (...

GSM (GMSK) power spectrum equation
by Markus Nentwig |
A simple, empirical model for the power spectrum shape of a GMSK-modulated GSM signal, generated acc...

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DSP Discussion Groups

Minimum phase filter using real cepstrum
by jungledmnc in Comp.DSP on May 24 2013
Hi, I'm trying to convert a mixed-phase FIR into minimum phase. From quite some googling I figure... Minimum phase filter using real cepstrum

Video mixing solution for H.264 streams
by sandy80 in Comp.DSP on May 24 2013
Hello i need to develop a video mixing solution for h.264 streams.I need a pointer about how t... Video mixing solution for H.264 streams

Help with IIIR filters
by FilterDan in Comp.DSP on May 24 2013
I have a problem understanding IIR filter stability problems. The problem is this; I can't find any ... Help with IIIR filters

A purely theoretical question
by Michael P. in Comp.DSP on May 24 2013
Hi group I have a purely theoretical question. When doing a FFT of an unwindowed pure sine sig... A purely theoretical question

Interpolation of a Discrete Periodic Signal
by dszabo in Comp.DSP on May 23 2013
So, this was an ongoing discussion in another thread, and it's been going on long enough that it pro... Interpolation of a Discrete Periodic Signal

The Delay of Minimum Phase FIR filter
by wyonghao in Comp.DSP on May 21 2013
Dear all, I would like to ask is there any way to have analytical estimation value of delay of mini... The Delay of Minimum Phase FIR filter

integer multiplication
by robert bristow-johnson in Comp.DSP on May 21 2013
(cross posted to comp.dsp and comp.lang.c.) are compilers now-a-days smart enough to multiply t... integer multiplication

Volume Control of a PCM file
by deer...@tataelxsi.co.in in Audio Signal Processing on May 21 2013
Hi, I am planning to write a code for volume control. My input and output are .pcm files. I wi... Volume Control of a PCM file

I love my job
by Tim Wescott in Comp.DSP on May 20 2013
I sat down today to get in a little bit of work over the weekend on a communications project I'm d... I love my job

File System Library Problem
by B S in TMS320C6x on May 18 2013
Hi, I have been trying to use Fat16/32 File System Library by third party given at the following ... File System Library Problem

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