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A Quadrature Signals Tutorial: Complex, But Not Complicated

Understanding the 'Phasing Method' of Single Sideband Demodulation

Complex Digital Signal Processing in Telecommunications

Introduction to Sound Processing

C++ Tutorial

Introduction of C Programming for DSP Applications

Fixed-Point Arithmetic: An Introduction

Cascaded Integrator-Comb (CIC) Filter Introduction

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FIR Filter Design Software

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Discussion Groups > Comp.DSP

Comp.dsp is a worldwide Usenet news group that is used to discuss various aspects of digital signal processing.

There are 17488 threads in our archives.

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Phase and sampling relationship in digital demodulation [3 articles]
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engrmasood2002 - 2015-01-29 12:46:00
Hi I tried to demodulate FSK (8 bit uart data caller id) according to the theory but was not successful unless i did bit processing at proper phase by looking at already implemented FSK demodulator ...Phase and sampling  relationship in digital demodulation

Calling dft from numerical receipies in C [3 articles]
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2015-01-28 21:32:00
I was reviewing a code - it acknowledges that the subroutine for dft was taken from numerical receipies in C - it is header is like: void fourtrans(data, nn, isign) float data[]; int nn, isign; ...Calling dft from numerical receipies in C

Update on Think DSP, and an explanation of the missing fundamental effect [19 articles]
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AllenDowney - 2015-01-28 15:07:00
Last week I posted blog article on Chapter 4 of Think DSP, which is about noise: http://thinkdsp.blogspot.com/2015/01/think-dsp-chapter-4-noise.html The article includes this notebook, where I p...Update on Think DSP, and an explanation of the missing fundamental effect

Speech proceesing of Stereo Vs Mono sound? [6 articles]
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2015-01-26 00:55:00
When speech files are given and turned out that some are stereo, am I correct to assume that the two channels are identical ... hence it is sufficient to just to process one channel and extract featur...Speech proceesing of Stereo Vs Mono sound?

Please vote for my 3 Feature Requests in the Adobe Audition Forum [2 articles]
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Ramon F Herrera - 2015-01-25 16:25:00
=========================================== "Does Audition perform subtraction of two signals/channels?" https://forums.adobe.com/thread/1689758 =========================================== ...Please vote for my 3 Feature Requests in the Adobe Audition Forum

Interpolating via a "smoothness" criterion. [2 articles]
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2015-01-25 01:53:00
A while back I was faced with the problem of interpolating a curve, which I= wanted to do in such a way as to minimize the kinks. This leads directly t= o an optimization problem for the 2nd order ...Interpolating via a

Classic FM Demodulation, using Matlab [12 articles]
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all4dsp - 2015-01-24 22:15:00
I've got a real voltage versus time waveform (e.g. xr) of a carrier frequency that is FM modulated. I need to see the modulation waveform to determine its peak-to-peak amplitude. While I do see a lot ...Classic FM Demodulation, using Matlab

How can I measure/characterize the color of my noise? [5 articles]
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Ramon F Herrera - 2015-01-24 11:14:00
This is a multi-part message in MIME format. --------------030208020708090301040807 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit I found a little appl...How can I measure/characterize the color of my noise?

What if the downsampling factor is not an integer? [7 articles]
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DigitalGeek - 2015-01-24 07:11:00
I have developed a function which down samples an input signal.Say I have an input signal with a sampling rate of 512 samples/sec and would like to down sample it 128 samples/sec, then the down sampli...What if the downsampling factor is not an integer?

Upconversion of digital signal [14 articles]
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steve_0 - 2015-01-23 09:15:00
Hey, I am just working a problem regarding digital upconversion and I have encountered a problem that is probably very easy to solve Asssume I have a signal with a bandwidth B = 1/Ts. I want to...Upconversion of digital signal
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