Rank: 735 based on 173 downloads (last 30 days) and 4 files submitted
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Files Posted by Jeff Tackett View all
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(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 49 2
  • 3.5
3.5 | 2 ratings
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 20 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 82 19
  • 4.83333
4.8 | 22 ratings
Comments and Ratings by Jeff Tackett
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 Tackett's Files View all
Updated File Comment by Comments Rating
07 Sep 2014 Bass / Treble Shelving Filter Generates coefficients for a 2nd order IIR digital filter Author: Jeff Tackett John

sorry about my guestion maybe its a wrong guestion but why when i put G=0 the filter becomes a fir filter and if G=0.1 and more OR G=-0.1and less the filter is iir???

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 Luis Gomez

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 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.

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 Olivier Baudry

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 ?

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