Subject: [AUDITORY] Loudness matching From: Jont Allen <jont1@xxxxxxxx> Date: Tue, 10 Jan 2017 08:38:51 -0600 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Dear Gauthier, One paper you might read looks at tonal and noise masking, and brings=20 them into agreement, by a transformation into the loudness domain. This solves the problem of the near miss to Weber's Law, which was a=20 large problem with classical loudness data. Personally I suggest you avoid loudness estimation methods due to the=20 very large variance associated with that method. Besides its basically in agreement with matching experiments, as was demonstrated by Fletcher=20 Munson 1933. Allen, Jont B. and Neely, S. T. (1997) "Modeling the relation between=20 the intensity JND and loudness for pure tones and wide--band noise"; /J. = Acoust. Soc. Am.,/ *102* (6) pp 3628--3646, December pdf=20 <http://jontalle.web.engr.illinois.edu/Public/AllenNeely97.pdf> There is also this sort of cue idea: Grimault, N and McAdams, S. and Allen, Jont B. "Auditory scene analysis: = a prerequisite for loudness perception," Book Title: "International=20 Symposium Hearing Oldenburg Germany" Publisher *Springer* Eds:=20 Kollmeier, Birger and Klump, Georg. pdf=20 <http://jontalle.web.engr.illinois.edu/Public/GrimaultMcAdamsAlle07.pdf> The pdf links should work. If not the papers are available at my website auditorymodels.org (publications) Jont Dear Gauthier, You can look to the work on loudness adaptation by Scharf, Can=C3=A9vet, = Botte, ... (I join a review paper). They measured loudness of long=20 signals. They used magnitude estimation and usually with pure tones. It=20 is far from what I have understood you are looking for, but that can help= =2E Otherwise a lot of experiments on masking use background noise to mask=20 combination tones. But it is masking, not loudness... best regards Sabine Le 06/01/2017 =C3=A0 12:03, Gauthier BERTHOMIEU a =C3=A9crit : > > Dear list, > > I am currently working on directional loudness as part of my first=20 > year of PhD in the University of Brest, France. > I am planning an experiment of loudness for low-frequency pure tones=20 > in the quiet (i.e. with internal noise only) and in presence of an=20 > external low-level noise. In order to get the subject used to external = > noise just like they are with internal noise, I was thinking of doing=20 > the whole external noise part of the test with a continuous backing=20 > noise, during from the very beginning to the very end of this part. > In the literature, all I could find in loudness matching procedure=20 > used gated noises, appearing and disappearing a few seconds=20 > before/after the target stimuli. > > Does any of you have ever heard of a loudness matching procedure (or=20 > similar) using a continuous noise all over the duration of the test ? > > Best regards, > > Gauthier Berthomieu. > --=20 Sabine Meunier Charg=C3=A9e de Recherche Laboratoire de M=C3=A9canique et d'Acoustique CNRS 31 chemin Joseph-Aiguier 13402 Marseille Cedex 20 t=C3=A9l : 04 91 16 41 75 fax : 04 91 16 43 71 m=C3=A9l :meunier@xxxxxxxx http://www.lma.cnrs-mrs.fr/