EN60065 AMD12 and EN60950 have new clauses for limits for headphones sold without players. Also EN50332-2 specifies measurement criteria for standalone headphones.
Also be aware that there are draft standards for EN50332-1 and -2 which are out for vote by the National Committees and are expected to be published soon. -----Original Message----- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: Friday, March 29, 2013 1:29 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: USA Lab for Headphone Sound Pressure Level Test per EN 50332-1 In message <00c301ce2c9f$447f03c0$cd7d0b40$@gmail.com>, dated Fri, 29 Mar 2013, Carl Newton <emcl...@gmail.com> writes: >I'm walking on new ground with this one. I have an automotive audio >system with a wireless connection to portable headphones for use within >the vehicle. Because they are wireless, the headphones have their own >internal speaker amplifiers and volume adjustment. The sound source is >external and not portable, but the headphones appear to qualify as >portable. What's your take on this? It isn't a portable music player within the definition is EN 60065. One criterion is that you can *walk around* with the *player* and headphones on your person. Your player is fixed in the car, and I don't suppose you can walk around in the car! Having said that, your system could be used for listening to music for long periods, so I recommend that you do restrict the maximum sound level to 100 dB SPL. A measurement using a 1 kHz sine wave and an IEC 60318-1 simulator should be sufficient. EN 50332-1 is only a 'method of measurement' standard; the safety requirements are in EN 60065, and your system might not be able to support all of them (such as the automatic warnings). -- OOO - Own Opinions Only. See www.jmwa.demon.co.uk Which Thunderbird will David Miliband pilot? Or will he drive Lady Penelope? John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
