Christian Budde (ITA - Institute for Technical Acoustics) has released Sigma Delta, a free VST effect plug-in for Windows that demonstrates how sigma delta converters work.
NOTE: It was mainly written for educational purpose, so it does not claim do deliver a good sound.

Related news...
| Christian Budde releases Simple Chorus | 29th December 2008 |
| Christian Budde releases Advanced Clipper | 2nd October 2008 |
| Christian Budde and Dalor release Rubberfilter | 28th June 2007 |
| posihfopit updated to v1.2.1 | 2nd September 2005 |
| Christian Budde updates VST Plugin Analyser | 30th August 2005 |
| Christian Budde updates VST Plugin Analyser | 9th June 2005 |
| VST Plugin Analyser Updated | 5th April 2005 |
| Sigma Delta v1.0.1 released | 18th February 2005 |
| VST Plugin Wizard for Delphi released (+DCFFT beta) | 26th January 2005 |
| Dual Channel FFT v1.0 released | 14th January 2005 |
| Christian Budde (ITA) releases Dual Channel FFT v1.0 RC1 | 6th January 2005 |
| Christian Budde (ITA) releases VST Plugin Analyser | 2nd October 2004 |
| Sigma Delta v1.0 released | 9th August 2004 |
| Quadropolis alpha version released | 10th June 2004 |











