Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: =?UTF-8?B?TWF0aGlhcyBLxZFyYmVy?= Newsgroups: comp.sys.mac.misc Subject: Re: unidentified alert sound: 4 very low 'sighs'? Date: Tue, 22 Oct 2013 09:12:36 +0800 Lines: 11 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: individual.net BIK7GmCS86W1oaSLBPQ4TQCL4qVq5HXnxgoOF4fE+5nxQHfJA= Cancel-Lock: sha1:/eWcNnIoF0WbREH7lItzGGExRTQ= User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 In-Reply-To: X-Enigmail-Version: 1.5.2 OpenPGP: id=78D0B871 Xref: csiph.com comp.sys.mac.misc:3233 Chris Ridd wrote: > Plug in some headphones and see if the noise goes away? The noise is *very* sporadic, so it's gone away (most of the time) When it happens is unpredictable but it sounds ominous enough to make me wonder what failure may be causing it. Hence my quest to identify it. It's not an issue of a constant noise.