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Resampling by Lagrange-polynomial interpolation [Matlab]
Calculates Lagrange-resampler coefficients and resamples an example signal.A Lagrange-resampler evaluates the unique n-th order polynomial that crosses through n+1 input samples. This code snippet map...
posted by Markus Nentwig on Aug 17 2011
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GSM (GMSK) power spectrum equation [Matlab]
A simple, empirical model for the power spectrum shape of a GMSK-modulated GSM signal, generated according to 3GPP TS 45.004 section 2 on a signal stream without slot structure. The picture shows t... posted by Markus Nentwig on Sep 18 2011
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Peak/Notch Filter Design [Matlab]
This function will generate the coefficients for a single IIR biquad that is a "peak/notch" design. Wierldy enough, this filter type is not part of the standard Matlab filter design toolbox.&nbs... posted by sparafucile17 on May 21 2011
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Audio interpolation (Catmull-Rom/Cubic Hermite Spline) [Matlab]
Matlab example for Cubic Hermite Spline audio interpolation for sample-rate conversion or variable-speed playback. It is computationally efficient and audio quality is good.... posted by Markus Nentwig on Oct 24 2010
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Using EMIF expansion port as digital output [C, TI C67x]
This is a simple example of how to use the EMIF expansion (labeled as Memory Expansion on the board) as a 32-bit wide parallel digital output. Here is a picture of the board: IMPORTANT DISCLAIMER:... posted by David Valencia on Oct 27 2010
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Echo Filter [Matlab]
An Audio Echo Filter is an FIR filter that repeats a sound after a given Delay attenuating the repetitions. You may test the filter using any input signal (i.e. Matlab "splat" signal). In ... posted by Miguel De Jesus on Dec 1 2010
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OFDM symbol generator [Matlab]
Generates OFDM symbols, modulation options include QPSK,16QAM,64QAM... posted by kadhiem Ayob on Apr 4 2011
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Auto Wah audio effect (LFO control) [C]
This auto wah effect uses a variable band pass stage as a building block and a LFO to control it. Find the variable band pass block at: http://www.dsprelated.com/showcode/176.php Xin ... posted by Gabriel Rivas on Sep 24 2011
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Variable 2nd order band pass IIR filter [C]
This piece of code implements a variable band pass filter in C language. It is intended to be used to create an array of coefficients sets in runtime, each set of coefficients is mapped to a center fr... posted by Gabriel Rivas on Jul 3 2011
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Computing CIC Filter Register Pruning Using Matlab [Matlab]
The following Matlab code computes the amount register bit-pruning described in Eugene's Hogenauer's famous paper on cascaded integrator-comb (CIC) decimation filters [1]. Although there are many de... posted by Rick Lyons on Feb 15 2012
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