Subject: Re: Unknown biological sound From: Peter Lennox <P.Lennox@xxxxxxxx> Date: Thu, 10 Dec 2009 17:02:50 +0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Just had a mad thought: there are many known instances of innovation in birdsong, where 'found' sounds are incorporated into the song. This is most notable and incongruous when the sounds are man-made (we notice it more) - and the apogee of this is the Lyre bird that impersonates everything around it, including car alarms, cameras with motor shutters, distant chainsaws and so on. We actually (and carelessly) make a lot of noise underwater, mostly machine noises. I've never heard of such a thing, but wouldn't it be funny if it turned out that a particular underwater species had this kind of echolalia? 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 Bruno L. Giordano Sent: 10 December 2009 16:14 To: AUDITORY@xxxxxxxx Subject: Re: Unknown biological sound 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 > > >