Subject: [AUDITORY] AW: Headphones For Online Experiments From: =?iso-8859-1?Q?Florian_V=F6lk?= <voelk@xxxxxxxx> Date: Fri, 26 Jun 2020 15:26:56 +0200Hi David, a while back, I published data on a few pairs of circumaural headphones, measured on several individuals. The results only speak for the specific headphones in their respective working (or not working) order at the = time, but may give an idea of what to expect: V=F6lk F.: Inter- and Intra-Individual Variability in the Blocked = Auditory Canal Transfer Functions of Three Circum-Aural Headphones. J. Audio Eng. Soc. 62, 315-323, 2014, http://www.aes.org/e-lib/browse.cfm?elib=3D17242 = =20 We also did a few interaural comparisons of the transducers (not on individuals, again only representative for the specimens we used), which = - combined with the first data - may hint to what to (or not to) = additionally expect with dichotic presentation: V=F6lk F., Encke J., Kreh J., Hemmert W.: Relevance of headphone characteristics in binaural listening experiments: A case study. 143rd = AES Convention (2017), http://www.aes.org/e-lib/browse.cfm?elib=3D19291 =20 Best regards, Florian Dr.-Ing. Florian Voelk +49 179 781 75 94 | www.windacoustics.com | voelk@xxxxxxxx=20 WindAcoustics UG (haftungsbeschraenkt) Muehlbachstrasse 1, 86949 Windach, Germany | Managing Director: Dr. = Florian Voelk Registered at Amtsgericht Augsburg (HRB 29275), VAT Reg ID: DE298485933 -----Urspr=FCngliche Nachricht----- Von: AUDITORY - Research in Auditory Perception = <AUDITORY@xxxxxxxx> Im Auftrag von Eddins, David Gesendet: Donnerstag, 25. Juni 2020 15:19 An: AUDITORY@xxxxxxxx Betreff: Re: Headphones For Online Experiments Hi Bob - Do you or does anyone else on the list know if there are good = data to show the amount of within-subject variability in frequency response = one might get with placement and replacement of supra-aural or circumaural headphones and how that within-subject variability might vary across multiple people? I suspect many have measured it in the lab at one = point or another but published data or solid archival data would be helpful to = get a handle on that (one of several) technical issue.=20 Thanks, Dave David A. Eddins, Ph.D., CCC-A Professor Communication Sciences and Disorders Chemical and Biomedical Engineering Director, Auditory & Speech Sciences Laboratory http://assl.cbcs.usf.edu 4202 E. Fowler Ave, PCD 1017 Tampa, Florida 33620 Direct Line 813.974.4094 Fax 813.974.0822 deddins@xxxxxxxx -----Original Message----- From: AUDITORY - Research in Auditory Perception = <AUDITORY@xxxxxxxx> On Behalf Of Bob Masta Sent: Tuesday, June 23, 2020 7:45 AM To: AUDITORY@xxxxxxxx Subject: Re: Headphones For Online Experiments This email originated from outside of USF. Do not click links or open attachments unless you recognize the sender or understand the content is safe. On top of the technical specs issue there is the issue of variability in = fit for individual users. I suspect this may overshadow published frequency response in many cases. Any ideas on how to control for that? Bob Masta =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D On 22 Jun 2020 at 10:20, Timothy Foley wrote: > > Dear AUDITORY, > > With the current online-only participant pool, my lab has been dealing = > with how to best categorize/code participants headphones. Currently,=20 > we have RA's coding headphones for specs such as (wireless or wired,=20 > open-closed, etc) which are pretty easy to find online. However more=20 > technical specifications, such as the ubiquitous frequency response = range, are difficult to find for some of the headphones. (e.g. no official freq range spec for Airpods). > > So I am looking for any resources that might help make this coding=20 > easier. Whether it be databases, papers, etc that has specs for = popular consumer-grade headphones. > > Thanks, > > Liam > > -- > Liam Foley, B.Sc. (Hons) > (He/Him/His) > > M.Sc. Student > > Psychology, Neuroscience, and Behaviour > > > > > Map icon location: Togo Salmon Hall, 422 Phone icon phone: 905 525 > 9140 Envelope icon email: foleyt@xxxxxxxx > > > > Twitter icon > > McMaster University Brighter World logo > > > > > > > > > > > > > > > > > > > > > >