Hello, DRC 2.5.1 is out and is available at: http://freshmeat.net/projects/drc/ Changes: A new ringing truncation stage has been added to remove excessive ringing caused sometimes by the pre-echo truncation procedure. The sliding lowpass prefiltering procedure has been rewritten to make it a bit more accurate and to make the code more readable. The postfiltering stage has been split to provide a separate stage for microphone compensation. The documentation has been vastly improved, switching to LaTeX for document generation and formatting. Many other minor bugs have been fixed. Best of listening, -- Denis Sbragion InfoTecna Tel: +39 0362 805396, Fax: +39 0362 805404 URL: http://www.infotecna.it