[AUDITORY] Tweeters for noise trauma

[Boris Gourévitch <boris@xxxxxxxxx>]

Dear auditory list,

I was looking for a speaker (probably a tweeter) that would reach 120 to 
maybe 130 dB SPL in a high frequency range (for mice).

I am a bit puzzled with the many papers inducing noise trauma (i.e. 
Warren, Fenton et al, J Neuroscience 2020; Amanipour et al, 2018; Chen, 
Sheppar and Salvi 2016; Novak, Zelenka et al, 2016) which actually used 
pretty common tweeters to do that. Technical specifications for these 
tweeters do not really indicate that they could handle such high SPL 
(and therefore such high voltage). How did they determine that ? How can 
we know then ? Only by sensitivity measure adjusted for the watt power 
of the speaker ?

Let's take an example: in the Warren et al above cited, the Visaton 
speaker from RadioSpare is used to deliver 3kHz at 126 dB SPL. The 
technical specifications 
(https://docs.rs-online.com/170c/0900766b802e5b23.pdf) indicate 30W max 
and a sensitivity of 86 dB. Thus, it seems that this speaker could not 
deliver above 101 dB SPL. How did the authors do to avoid damaging their 
speaker ?

Same question with other speakers as well. I'm not an 
acoustician/electronician and I am probably missing something here.

Many thanks for your help. Also, many of the tweeters from the papers 
above are discontinued so if you know a pretty robust one that you are 
safely using at high SPLs, please do not hesitate to tell me.

Best regards

Boris

--
Dr Boris Gourévitch
CNRS Researcher

Institut de l'Audition
UMR1120 Inserm, Institut Pasteur
63 rue de Charenton
75012 Paris, France

Tel: (+33) 1 76 53 50 41

Personal Web page: http://www.pi314.net/


--
L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus