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 -
Lizard Squad, Nihilistic Technofetishists For Hire
'The Modern's were mercenaries...'- William Gibson, 1984.
CoBots - Collaborative Robots Ask Humans For Help
'Whenever a robot finds something it can't identify... You give it a good look.'- Harry Harrison, 1956.
Neuromorphic Brain-Chip Takes Flight
'Cultured brains on a slab.'- Peter Watts, 1999
'Hello, Computer!' Intel's Core M Catches Up To Scotty
Scotty's impulse to talk was right, it seems.
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.
3D Printer 'Teleports' Objects Like Simak's Way Stations
'An entirely new being but exactly like the old one'
Laser Etching Makes Metal Super-Hydrophobic
'The water flowed off those walls without binding tension.'
Patient Walks Out With Fully Artificial Heart
'The throb of the robot pump gave him confidence...'
Radisens' Gemini Instant Blood Tests
An amazing lab-on-a-panel.
Nonhuman Artist Collective Keeps Robot Artist Earnings Until Legal
Pay the artists!
Argentine Orangutan Receives Basic Human Rights
'They wouldn't dare let the Fuzzies be proven sapient...'
Elon Musk, Google To Extend Internet Into Earth Orbit, Then Mars
'This was the center of Interplanetary Communications.'
Range R Lets Police See Into Your House
There are lots of ways to see through walls!
Thync Mood Alteration Like PKD's Mood Organ
'I sat down at my mood organ and I experimented...'
Atlas DRC Robot Now Untethered
Would a robot walking toward you make you feel afraid?
VirtualGreen Putting Simulator Like Brin's Needle-Gym
'My eyes saw a tiny, off-white chamber, its coarse floor of needles mimicking a steep hillside...'
VW Golf R Touch With Gesture Control
'All you had to do was wave your hand...'
The Bioengineered Uterus
Will it ever exist?
3Doodler 2.0 Create A 3D Object With A Pen
'Plastic comes out of the end of the drawing arm and hardens as it comes.'
Cambrian Genetics Says 'Print Your Own Genetically Unique Creature'
'The study of Nature makes a man at last as remorseless as Nature.'
Meet 'Ross', Your Watson-Based Legal Researcher
'Why don't we just feed the bloody thing to LEX and ask for a summary?'
More SF in the News Stories
More Beyond Technovelgy science news stories