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 -
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.
Touch Typing Taught Haptically DIY-style
'He then started hand movements of definite pattern...'
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.
Smart Window Tints, Powers Itself
'The polawindow, which he tuned to clear transmission.'
A Basic Income TED Talk
'They de-emphasized what lack of work would do to Mr. Everyman'
What Can Magic Leap Expect From New 'Chief Futurist' Neal Stephenson?
'The goggles throw a light, smoky haze across his eyes...'
Should SETI Talk To Molecular Cloud Barnard 68?
'I myself am building basic chemicals at about 10,000,000,000 times the rate at which building is occurring on the whole ... surface of your planet.'
LikeAGlove Smart Garment Knows Your Size
'The tailor set moving a mechanism...'
EXACTO Bullets Change Course In Mid-Air
'This little weapon ejects a rather ingenious missile...'
Button-Pushing Robots Have Taken Our Jobs, Thankfully
'The ten forked ends of each arm commenced a rattling pressing of the buttons.'
Puls 'Smart Watch' Replaces Your Cell Phone
Even before Dick Tracy, there were Ideas about this.
Small Molecule Walker Takes First Steps
'The bits were in motion.'
US Navy Laser Ready For Use
Fifty years from cartoon to reality.
Fast Lightweight Autonomy Indoor Drones For DARPA
'the Scarab buzzed into the great workroom... and sought the security of a shadowed corner.'
Ninebot One Self-Balancing Wheel
'It had been a long time since the Chief Engineer had ridden one of these silly-looking little vehicles...'
FuturICT Knowledge Accelerator And Psychohistory
'The reactions of human conglomerates to fixed social and economic stimuli...'
Stellar Navigation Based On Network Analysis
'We are a traveling people. We need a travel station here.'
New 'Smart-Skin' Senses Pressure, Humidity, Heat
'You can even sense with your fingertips...'
Mimo Baby Monitor
'In every diaper there is a fine copper wire.'
More SF in the News Stories
More Beyond Technovelgy science news stories