Subject: Re: Loudness Calculation From: Ju-Lee Hong <jl.hong@xxxxxxxx> Date: Tue, 9 Oct 2007 00:37:59 +0100 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Hi Udaynag, Try the Sonic Visualiser http://www.sonicvisualiser.org/ developed by the C4DM, Queen Mary, University of London. together with the Mazurka plug-ins http://sv.mazurka.org.uk/ developed by the CHARM, Royal Holloway, University of London. Once the Sonic Visualiser is run on your computer, try the smoothed power output from the PowerCurve plug-in (amongst the Mazurka plug-ins) for the loudness measurement and see how it works for you. It works pretty well for measuring loudness in recorded instrumental chamber music (e.g. piano solo, cello & piano duo etc), but I don't know whether it has been tested for calculating loudness in speech signals. Cheers, Ju-Lee -- Ju-Lee Hong (PhD student) Department of Music Goldsmiths, University of London email: jl.hong@xxxxxxxx On Mon, October 8, 2007 10:52 pm, Udaynag Pisipati said: > Hi all, > > > I need to do some loudness measurements on speech signals recorded > from a live mobile conversation. Thanks to the loudness code posted > by Aaron Hastings, from which I could do the loudness evalauation. > But, I am a > beginner in psychoacoustics and I am not able to intrepret the > results or the graphs obatined from the loudness model, especially > with very few references I have for loudness evaluation. The code is > implemented using Zwickers ISO532B loudness model. If anybody out > there could point me to some references , that would really help me. > The posting from Aaron Hastings > referes to the Journal of Acoustical Society of Japan (E), 12, 1 > 1991 and it > would be great if somebody could point me where I could find that > paper. > > Thanks in advance. > > > Udaynag > >