Rank: 1238 based on 101 downloads (last 30 days) and 4 files submitted
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Professional Interests:
signal processing, DSP, neural networks, adaptive filter design

 

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Files Posted by Jeff View all
Updated   File Tags Downloads
(last 30 days)
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01 Jul 2009 Digital Resistor-Capacitor (RC) Filter Generates digital IIR coefficients from only Resistor and Capacitor values Author: Jeff Tackett signal processing, rc filter, iir design, iir simulation, iir, resistor 22 0
26 Sep 2007 Screenshot Bass / Treble Shelving Filter Generates coefficients for a 2nd order IIR digital filter Author: Jeff Tackett audio processing, video processing, bass shelf, treble shelf, shelving iir filter, equalization 21 1
  • 5.0
5.0 | 1 rating
26 Sep 2007 Screenshot Peaking / Notch IIR Filter Generates coefficients for a 2nd order IIR digital filter Author: Jeff Tackett audio processing, video processing, peaking, notch, equalization, eq 18 1
  • 5.0
5.0 | 1 rating
17 Mar 2005 Screenshot ISO 226 Equal-Loudness-Level Contour Signal Generates a psychoacoustic equal loudness contour (curve) as described in ISO 226. Author: Jeff Tackett audio processing, video processing, iso 226, iso226, loudness, fletchermunson 40 19
  • 4.83333
4.8 | 22 ratings
Comments and Ratings by Jeff
Updated File Comments Rating
01 Jan 2013 ISO 226 Equal-Loudness-Level Contour Signal Generates a psychoacoustic equal loudness contour (curve) as described in ISO 226. Author: Jeff Tackett

Hi Olivier, in order to understand the symbols you must purchase the publication of ISO226. This MATLAB function only implements the mathematics described there. But to summarize, dozens of loudness tests have been performed over the last ~80 years and this function fits a curve to all of these tables. If you read the paper many of your questions will be answered.

Comments and Ratings on Jeff's Files View all
Updated File Comment by Comments Rating
07 Mar 2013 ISO 226 Equal-Loudness-Level Contour Signal Generates a psychoacoustic equal loudness contour (curve) as described in ISO 226. Author: Jeff Tackett VPG

15 Jan 2013 Bass / Treble Shelving Filter Generates coefficients for a 2nd order IIR digital filter Author: Jeff Tackett Gomez, Luis

This matlab command is not working. Someone can give me a hand on creating and getting B,A parameters of a shelving filter on matlab?

01 Jan 2013 ISO 226 Equal-Loudness-Level Contour Signal Generates a psychoacoustic equal loudness contour (curve) as described in ISO 226. Author: Jeff Tackett Tackett, Jeff

Hi Olivier, in order to understand the symbols you must purchase the publication of ISO226. This MATLAB function only implements the mathematics described there. But to summarize, dozens of loudness tests have been performed over the last ~80 years and this function fits a curve to all of these tables. If you read the paper many of your questions will be answered.

28 Nov 2012 ISO 226 Equal-Loudness-Level Contour Signal Generates a psychoacoustic equal loudness contour (curve) as described in ISO 226. Author: Jeff Tackett Baudry, Olivier

It's not precised in this script what is it ?about af, Lu, Tf, and Ln, , what are the symbol represented by af, Lu, Tf, and Ln? Where the vales come from (arbitrary or not) Tf af, Lu, Tf, and Ln : what is it ?

07 Nov 2012 ISO 226 Equal-Loudness-Level Contour Signal Generates a psychoacoustic equal loudness contour (curve) as described in ISO 226. Author: Jeff Tackett Radek

I've upgraded a bit your function, now it accepts expressions like surf(iso226(20:10:80)) https://www.box.com/s/g1cdj6q30ho5w3gvt80j producing beautiful 2D map

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