Subject: Re: Unknown biological sound From: "Bruno L. Giordano" <bruno.giordano@xxxxxxxx> Date: Thu, 10 Dec 2009 11:14:25 -0500 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>I have to agree with Peter: I would be very surprised if this was a biological sound. It sounds too regular and sustained to me, although the 21st century man might have developed a mistaken identification bias to survive in a modern jungle of living agents and evil machines, where seahorses (and woodpeckers) are rare and harmless ;-) Bruno Jazz wrote: > Sounds like a Sea-horse, But lots of Fish make similar soundsthere are more to listen to on the websight below > http://www.dosits.org/gallery/fishnbay/15.htm > Jazz > > > http://www.dosits.org/gallery/fishnbay/15.htm > > > > ----- Original Message ---- > From: Peter Lennox <P.Lennox@xxxxxxxx> > To: AUDITORY@xxxxxxxx > Sent: Thu, 10 December, 2009 10:42:15 > Subject: Re: [AUDITORY] Unknown biological sound > > There seem to be two sets of sounds - the clicks that sound like mic handling noise aren't at the end, so I'm not sure if they were what you were telling me to ignore. They're certainly much closer to the mic than the other, continuous noise, in fact I think they're very close. > The other noise - is it definitely animal? - How long was the noise? - continuous or in short bursts like your sample? - it sounds rather like a motor - could even be something like a compressor, transmitting through the hull of a boat. There seems to be some reverberation there which I assume results from the source-mic distance (and certainly it doesn't sound like very deep water) but it could be be structural reverberation if it actually came from an object with a rigid body such as a boat. > I'll be happy if you find out what it is! > Regards > ppl > > Dr Peter Lennox > > Director of Signal Processing and Applications Research Group (SPARG) > School of Technology, > Faculty of Arts, design and Technology University of Derby, UK > > p.lennox@xxxxxxxx > (01332) 593155 > http://sparg.derby.ac.uk/SPARG/Staff_PLX.asp > > > -----Original Message----- > From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx On Behalf Of Linda Sebastianutto > Sent: 10 December 2009 14:43 > To: AUDITORY@xxxxxxxx > Subject: Unknown biological sound > > Dear list members, > > During a nocturnal acoustic survey in shallow waters in the Northern > Mediterranean Sea my colleagues recorded some strange sounds of > unknown origin. > You can find an example in attachment; it is band-pass filtered (50 - > 600 Hz), and amplified. Please try to ignore the "clicks" at the end > of the sound. > Does any of you have an idea of what kind of animal emits a sound like > this? Maybe a fish? > > Thank you in advance > L Sebastianutto > > > > Linda Sebastianutto, PhD student > Cognitive Neuroscience Sector > International School of Advanced Studies > via Lionello Stock 2/2 > Trieste - Italy > > email: sebast@xxxxxxxx > tel: +39 040 3787604 > > > > > ---------------------------------------------------------------- > SISSA Webmail https://webmail.sissa.it/ > Powered by Horde http://www.horde.org/ > > > The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this email was sent to you in error, please notify the sender and delete this email. Please direct any concerns to Infosec@xxxxxxxx > The policy is available here: http://www.derby.ac.uk/LIS/Email-Policy > > > > > > __________ NOD32 4676 (20091210) Information __________ > > This message was checked by NOD32 antivirus system. > http://www.eset.com > > >