Re: [AUDITORY] Loudspeaker recommendations for animal psychophysics experiments?

Subject: Re: [AUDITORY] Loudspeaker recommendations for animal psychophysics experiments?

From: Jakob Christensen-Dalsgaard <jcd@xxxxxxxxxxxxxx>

Date: Tue, 17 Apr 2018 06:00:48 +0000

Accept-language: en-US, da-DK

Arc-authentication-results: i=1; mx.google.com; spf=pass (google.com: domain of owner-auditory@xxxxxxxxxxxxxxx designates 132.206.27.101 as permitted sender) smtp.mailfrom=owner-auditory@xxxxxxxxxxxxxxx; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=sdu.dk

Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-archive:list-owner:list-subscribe:list-unsubscribe:list-help :precedence:in-reply-to:to:comments:subject:from:sender:reply-to :date:message-id:mime-version:content-language:accept-language :references:thread-index:thread-topic:approved-by :arc-authentication-results; bh=ke2xHgX2ZwJUFaRSSTqMsZxrKUU7oxVaOMGpX4CaPEA=; b=nsE4wkf7Rj9q5DDXi6uzJCAwOWvqIOQR9ReQM1O8EKjGJU7L4MKM6BtrtI+qKmFj4q i8LjVds6ngjWVESxh9J9B4PMkXoz1awk189Ey/8WbLO8jbXtNRd6JYh9hPHIBPFKgwWc HHY0gc/mTAMNyvV8FTDUa6zRiNUXRCl9ZJ9xT7IGXmqaQ0Rq/XndvcDue4CNA7ir9E+6 Hz+foUeRy0TjN2VYswLvaKxJEp4Fh1lnEPbF4CEkBb6yv57AA7MsgZ6SLDguAnMysV32 narBuj8ytNGukjQTINsPNaMS380foJ7QYn5gkSrWHRhlJXrpOORNHsDMQ/YrNvNFEqFg XsNg==

Arc-seal: i=1; a=rsa-sha256; t=1523945817; cv=none; d=google.com; s=arc-20160816; b=pTWQnZNF6nHLStCmEk8MgoF2Ih4Xcekr9v9zCmQqgZnhmS6GnpikbMqgDrMblM/QIH rE2PUrffjcj+r2YDxgqde2eZ7cGYN7ByhIYh0/hk9MC6HVldbFmpON2YPxunmFLDertE 3faOQsF6UTp9bJpiVq/bqtznBMY+jMe0Nr0rE1itlUAhr+ofKuux4RWLJ/Iq+1n+gsfe Vo5JR/WM4axNYXHiO2x7cxDeHj8SYL/RfY01BFt+660W+2+MEALQ5UW7NJ4Tbm7Ch+Xq 7ic/GlWJh8HHETgESPrtPsikIq6AnCWKCr+3qyAAnxxL2CAdyvhY5fK3MgmmKiWYFHI/ x9DA==

Authentication-results: mx.google.com; spf=pass (google.com: domain of owner-auditory@xxxxxxxxxxxxxxx designates 132.206.27.101 as permitted sender) smtp.mailfrom=owner-auditory@xxxxxxxxxxxxxxx; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=sdu.dk

Comments: To: Kerry Walker <kerry.walker@xxxxxxxxxxxxx>

Delivered-to: dan.ellis@xxxxxxxxx

In-reply-to: <26686_1523938288_5AD573F0_26686_45_1_CAD5zth5js6165MUe0AcC3fn2YLvxHA9pAHAQZiewN6urLrp7Jg@mail.gmail.com>

List-archive: <http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

List-help: <http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>, <mailto:LISTSERV@LISTS.MCGILL.CA?body=INFO%20AUDITORY>

List-owner: <mailto:AUDITORY-request@LISTS.MCGILL.CA>

List-subscribe: <mailto:AUDITORY-subscribe-request@LISTS.MCGILL.CA>

List-unsubscribe: <mailto:AUDITORY-unsubscribe-request@LISTS.MCGILL.CA>

References: <26686_1523938288_5AD573F0_26686_45_1_CAD5zth5js6165MUe0AcC3fn2YLvxHA9pAHAQZiewN6urLrp7Jg@mail.gmail.com>

Reply-to: Jakob Christensen-Dalsgaard <jcd@xxxxxxxxxxxxxx>

Sender: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>

Thread-index: AQHT1gI3mFa1Q3mfsUyijG6bm7m4bKQEc/NU

Thread-topic: [AUDITORY] Loudspeaker recommendations for animal psychophysics experiments?

Dear Kerry,

If you want to stimulate with vibrations , I would recommend using a vibration exciter to generate controlled vibrations - for example the Bruel and Kjaer 4810 minishaker with a plate attached. The minishaker is basically a modified loudspeaker (modified so it does emit very little sound) and has a nice flat frequency response.

Greetings

Jakob

Jakob Christensen-Dalsgaard,
Center for Sound Communication
Institute of Biology, University of Southern Denmark
Campusvej 55
DK-5230 Odense M
Denmark

Tel: +45 6550 2448 (office) 

Web: http://www.sdu.dk/staff/jcd.aspx

From: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx> on behalf of Kerry Walker <kerry.walker@xxxxxxxxxxxxx>
Sent: Monday, April 16, 2018 5:12:06 PM
To: AUDITORY@xxxxxxxxxxxxxxx
Subject: [AUDITORY] Loudspeaker recommendations for animal psychophysics experiments?

Dear List,

We require a small loudspeaker to deliver vibrations in the 100-300Hz range to mouse whiskers. We are currently using a Visatron Rectangular Speaker Driver , which has a convenient flat surface, but is producing harmonic artefacts that will be easily audible to the mouse.

Does anyone have a favourite small loudspeaker than performs well in the low frequency range?

Thanks,

Kerry

Early Career Research Fellow, Dept of Physiology, Anatomy & Genetics, University of Oxford

Research Associate, St Catherine's College, University of Oxford

Oxford Anatomy and Physiology ranked #1 in the QS World University Rankings 2017, 2018