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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 17266 threads in our archives.

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IIR Coefficient Calculation [22 articles]
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ger_lough - 2014-04-24 14:20:00
I am having difficulty finding any info on how to calculate digital IIR filter coefficients. I know this can be done in MATLAB, for example, but I am interested in changing IIR specs on the fly. I hav...IIR Coefficient Calculation

Mapping out subregions of neighbors in a matrix and calculating center of mass for each sub-region
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Mauritz Jameson - 2014-04-24 12:35:00
I have been presented with a problem which involves the following: 1. Given an MxN matrix with some values. 2. Given a threshold value T PROBLEMS - Identify sub-regions in the matrix. A...Mapping out subregions of neighbors in a matrix and calculating center of mass for each sub-region

multi-channel leslie [8 articles]
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mnentwig - 2014-04-24 08:23:00
Hi, the sound of a Leslie is hard to imitate in stereo as it's' spatial: The beam of the horn gets reflected by the environment, bounces off walls and the like. Now has anybody ever tried to repro...multi-channel leslie

How many ways to orient a cube -- check my math [4 articles]
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Tim Wescott - 2014-04-22 16:12:00
Imagine I have a table, a compass, and one cube. On this cube is marked out the 3-D Cartesian coordinate system: x, y, z, with z oriented per the right-hand rule. Now imagine that I put this c...How many ways to orient a cube -- check my math

OT. How to become a forensic audio expert [9 articles]
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2014-04-22 13:34:00
Step 1 Buy adobe audition Step 2 Mix white noise together with a beeping sound Step 3 Run the built- in noise removal program Step 4. Appear multiple times on CNN to explain how,...OT. How to become a forensic audio expert

Filtfilt in frequency domain [2 articles]
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Ashwin - 2014-04-22 13:23:00
Let me give you a premise to the problem, which may help you appreciate my = intentions for getting filtfilt done in the freq domain.=20 I have a time signal that is being acquired through a piece...Filtfilt in frequency domain

Digital ButterWorth Filter Design [4 articles]
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jeeva123 - 2014-04-22 11:00:00
Hi All, I am working in Digital ButterWorth filter design. I am using Fourth-order, zero-lag filter design. The Coeffecients calculation by using formula dCutoff2 = dCutoffFrequency ...Digital ButterWorth Filter Design

Convert to higher sample rate [66 articles]
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B - 2014-04-21 13:05:00
Any opinions on the easiest way to convert an audio track to a higher sample rate? Mostly likely x2 or x4. It occurred to me that it could be done with FFT, then 'resample' but it seems like there...Convert to higher sample rate

the 0th and 1st derivative of a scary function [76 articles]
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robert bristow-johnson - 2014-04-20 21:14:00
in case anybody wonders why my participation might be a little spotty of late, take a look at this function of time: http://waterdata.usgs.gov/vt/nwis/uv?dd_cd=3D03&format=3Dgif&period=3D31&si= ...the 0th and 1st derivative of a scary function

OT: A good laugh [3 articles]
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2014-04-20 05:20:00
Perhaps many of you have been in meetings like this... http://www.slapyourselfcomedy.com/the-expert-short-comedy-sketch/ ...OT: A good laugh
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