Voice Stress Detection In Emergency Callers
Voice stress analysis software developed in the Netherlands is being used to help triage emergency medical responses.
"Stress and negative emotions, in general, have a strong influence on voice characteristics," the researchers explain. "Because speech is a natural means of communication, we can utilise the sound patterns of speech to detect stress and (negative) emotions in a non-intrusive way by monitoring the communication." Factors such as how quickly a person is talking, whether or not there are rises and falls in pitch and tone and breathing rate, all change when we are stressed and can be detected.
The team has now "trained" a computer algorithm that receives audio input from emergency calls to assess the emotive level of the callers' speech. Four different training techniques were used with recordings from actual emergencies of known outcome and the team says their error rates are as low as 4.2% for a database of call centre recordings used in the research. Optimisation of the algorithm using a larger training set and more robust statistical tools might improve that still further.
The researchers expect the system to have military applications in the first instance. However, it could be adapted to the civilian emergency services and perhaps other applications, such as criminal investigations.
Science fiction readers of course recall that the HAL-9000 system from the 1968 novel and film 2001: A Space Odyssey was able to detect the stress in voice samples. Here is the exchange between Dave Bowman and the HAL-9000, as described in Arthur C. Clarke's novel:
"Hal, switch to manual hibernation control."
"I can tell from your voice harmonics, Dave, that you're badly upset. Why don't you take a stress pill and get some rest?"
"Hal, I am in command of this ship. I order you to release the manual hibernation control."
"I'm sorry, Dave, but in accordance with special subroutine C1435-dash-4, quote, When the crew are dead or incapacitated, the onboard computer must assume control, unquote. I must, therefore, overrule your authority, since you are not in any condition to exercise it intelligently."
"Hal," said Bowman, now speaking with an icy calm. "I am not incapacitated. Unless you obey my instructions, I shall be forced to disconnect you."
(Read more about HAL-9000.)
Scroll down for more stories in the same category. (Story submitted 3/22/2011)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 2 )
Related News Stories -
Digital Immortality For Your Personality
'You've got remote storage. How regular is the update?' - Richard Morgan, 2003.
Computer Finds Cancer Doctors Miss
The computer will see you now.
Melomics Avant Garde Computer Musician
'Rollo sat at the keyboard, prim, inhuman, rigid, twin lenses focused somewhere off into the shadows...'- Herbert Goldstone, 1953.
x.ai And The Quest For A Digital Personal Assistant
'In McKie's thoughts, the DS [Daily Schedule] was suddenly transformed into a valued confidante.'- Frank Herbert, 1977.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Heart-In-A-Box Saves Organ For Later
'Storage in the hospital's organ banks...'
MultiFab 10-Material 3D Printer
'On the concrete platform, in front of the dying Biltong, lay a heap of originals to be duplicated.'
Chaac Ha Dew Collector ala Dune
'The surface condenses moisture out of the air. That moisture trickles down...'
Digital Immortality For Your Personality
'You've got remote storage. How regular is the update?'
Robots Take Our Jobs By Reading Our Instructions
'The Talk Between Robots radio...'
Surgery In Space
' It was a ... coffin, form-fitted to Nessus himself...'
Flimmer Navy Drone Flies And Swims
Launch the Flying Sub!
Taser Drones Now Legal In North Dakota
'I sent my eyes on their rounds and tended my gallery of one hundred-thirty changing pictures...'
Growing Metal In The Shape You Want
What more do you need, engineers?
Self-Healing Materials For Spacecraft
'It even had an inter-skin layer of gum that sealed the punctures...'
World's First Full-Colour, Flexible Thin-Film Reflective Display
'A wide sheet of clear material suddenly flared with light and swirling colour....'
Jazz AI Compliments Of DARPA
'I request that you feed the correlation between those dots and the levers of the panel into my memory banks.'
Tasty Space Lettuce!
Having tested, we tasted.
See LG OLED Wallpaper - Amazing Video
'... television that unrolled like a poster.'
Canada's Inflatable Space Elevator Tower
"...establish an elevator system linking Earth to space?"
Ekso Works Industrial Exoskeleton
'Earth's scientists [devised] rigid metallic clothing not unlike armor...'
More SF in the News Stories
More Beyond Technovelgy science news stories