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 ")

Vint Cerf's 'Digital Dark Age' Vs. George Orwell's
'You could never consult Archival Records in a straightforward manner.'- Frank Herbert, 1984.

Data Mining Computers Detect Your Emotions
'I can tell from your voice harmonics, Dave, that you're badly upset.'- Arthur C. Clarke, 1968.

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.

 

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

eMotionButterfly Ultralight Robot From Festo
'Artificial butterflies darted along invisible beams...'

Graphene Cytobot - Cyborg Bacterial Spores May Help Astronauts
'[It] had not yet objected to being made over into a portion of an electronic system... '

XM82 Personal Flamethrower Now In Development
'Skeletons in tatters. Burned by a flesh gun'

Delightful Plen2 Mirror Robot - The Anti-Terminator
Time for fun, Will Robinson!

LiquiGlide Will Be Everywhere
'They poured the remnants of eggs out of their frictionless cups...'

US Customs Now Doing Facial Recognition At DC Airport
Are you who you say you are?

How Many Systems In That Galactic Empire Now?
'An Empire to twenty million stellar systems...'

Petman Robot Pushes Itself To The Limit
'There was the butler robot, hard at work, his copper face expressionless...'

Coleus LED 'Skylight' Dispenses Natural Sunlight Indoors
'How do they work it so that the sky is visible at every level of the city?'

UR3 Robot At Work On Copies Of Itself
'I don't mean that you should construct this ultra-microrobot with your own fingers, of course...'

3D Printing 'Terminator T-1000-Style'
Not quite 'a mimetic polyalloy...'

Norlin Shoe Drone Robot UAV In-Store Delivery Thing
'Robot-salesmen were everywhere, gesturing, pleading, shrilling.'

Bridge-MINDER Repair Robot
'The repair robots had started out on their rounds...'

Super Ball Bot Tensegrity Robot For Solar System Exploration
'Each leg in turn acted as a pivot around which the creature whirled its body...'

iSkin On-Body Touch Sensors
'Three rows of four colored dots appeared on the heel of my left hand.'

Britain To Build Spaceport, First In Europe
'The space-ports at the three great cities...'

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.