Subject: Re: Audibility of fire alarms From: Hermann Stemberger <hermann(at)STEMBERGER.AT> Date: Sun, 19 Sep 2004 19:57:50 +0200From: "Brad Ingrao" <info(at)bradingrao.com> > Does anyone of any research that identifies the acoustic characteristics > needed to arouse people from sleep. Possibly The Roar of a Lion? Or the "White Shark" soundtrack? Sorry, could not resist ;-). To supply some Information from my own experience. When i get used to my alarm-clock sound i can ignore it. So it should be a very unfamiliar sound. And the second thing: It should be heavily arranged in the 1-4kHz frequency range. And additionally Harmonic Distortion helps signals to be louder recognised as they are. Regards, Hermann. Best Regards, > > Brad Ingrao, MSEd, CCC-A, FAAA > > Editor > > EDEN - The Electronic Deaf Education Network > > info(at)bradingrao.com > > > > _____ > > From: AUDITORY Research in Auditory Perception > [mailto:AUDITORY(at)LISTS.MCGILL.CA] On Behalf Of Brungart Douglas S Civ > AFRL/HECB > Sent: Wednesday, September 15, 2004 3:21 PM > To: AUDITORY(at)LISTS.MCGILL.CA > Subject: Possible National Acadamy of Science Post-Doc Opportunity at AFRL > > > > I wanted to alert everyone to this possible research opportunity at our > laboratory at Wright-Patterson AFB in Dayton, Ohio. We are looking for > possible post-doc candidates interested in auditory localization and > multitalker speech perception. The program is administered by the > National > Academy of Sciences, and the stipend is relatively generous. There is no > guarantee that funding will be available, but for the right candidate this > could be a great opportunity. The deadline to apply for the fall cycle is > November 1st. Note that the position is open only to US citizens and > legal > permanent residents (Green Card Holders). > > Thanks, > > Doug Brungart > > Increasing Information Transfer in Audio Display Systems > > Human audition is an amazingly complex modality capable of extracting > spatial, spectral, and temporal information from multiple simultaneous > sound > sources even in adverse listening environments. However, most real-world > audio display systems rely on relatively simple stimuli that fail to take > full advantage of the inherent capabilities of human listeners. The goal > of > this research is to find ways to increase the amount of information > transferred to listeners through audio display systems. The effort > involves > two broad areas of research. The first area focuses on the generation of > robust and intuitive azimuth, elevation, and distance cues that maximize > the > transfer of spatial information in audio displays, especially in noisy > environments that involve more than one virtual sound source. The second > area focuses on improving the segregation of competing sound sources in > complex listening environments, especially those that involve more than > one > simultaneous speech signal. A major component of this research is a study > of > the role that non-energetic "informational" masking plays in the > perception > of multiple speech signals. > > > > > > More info about the program... > > > > http://www4.nationalacademies.org/pga/rap.nsf/ByTitle/13.15.07.B5700?OpenDoc > ument > > More info about our laboratory and its facilities: > > http://www.hec.afrl.af.mil/HECB/index.shtml > > > > > >