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-9000)

"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.)

Via Gizmag.

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 |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 2 )

Related News Stories - (" Computer ")

'No Man's Sky' - The Matrix Is Almost Ready
Ready for an adventure, Neo?

Google's Project Tango VR Tablet Pictures Your 3D World
'Surely most were virtual, but the blending was perfection.' - Vernor Vinge, 2006.

Oculus Rift Combats Battlefield Trauma
Virtual reality could soften the blow of real reality.

Google Offers Future Prediction In The Cloud
'Beyond the machinery sat the three precogs, almost lost to view in the maze of wiring...'- Philip K. Dick, 1956.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

Hotel Staffed Entirely By Robots
'A planet-wide chain of hotels that specialized in non-human service.'

Electric Bacteria That Live On Pure Energy
'April 5, 1977; that was the night the waveries came.'

EXACTO Smart Bullet From DARPA
Nicely visualized in what 1984 movie?

Neural Implant To Treat Memory Loss
'You've got remote storage. How regular is the update?'

MIT's Shape-Shifting Robot Materials
The T-100, an advanced prototype, is made of liquid metal. Not quite ready.

LS3 AlphaDog Robot Marine Corps Video
'He admired the fast-plodding, articulated legs, so necessary since roads had degenerated...'

Vantablack Is Blacker Than Your Black
'Well, we have a black coating now thatís ninety-nine percent absorptive...'

Remotely Operated Gardening Rover - Student's Space Agricultural Robot
'There were things growing all over the place, not just in some domed enclosures blasted some millions of miles out in to space.'

Revisiting A Cloud City On Venus
Lando Calrissian, are you still available?

'Windowless Cockpit' Like Star Trek's Patent Applied For
Mr. Sulu, take us out.

'No Man's Sky' - The Matrix Is Almost Ready
Ready for an adventure, Neo?

The Claustrum - The Brain's On Off Switch?
'All I have to do is move this switch and he'll recover consciousness...'

Haptic Gloves Teach Braille Without Effort
'Jenkins bit his lip... [at] the sensation of having his fingers manipulated by the gauntlets he wore.'

India's Commuters Face Philip K Dick's 'Sales Pitch' Future
'All around him the vague half-defined echoes of ads glittered and gibbered...'

Harvard's Robobee Has Insect-Inspired Eyes
'It studied its surroundings... and saw with its minute vision tubes.'

Robots Implore Humans For Help Online
'Whenever a robot finds something it can't identify straight off... it puts whatever it is in the hopper outside your window.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.