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 ")

Touch Typing Taught Haptically DIY-style
'He then started hand movements of definite pattern...'

'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
  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

MIT's Robotic Cheetah Runs Free - And Frolics In The Grass
'THEY sent A SLAMHOUND on Turner's trail...'

Flying Robot Has An Arm
Drones with arms.

Strati 3D Printed Car
'You rode in it - you know how good it is.'

Tracking Spinning Space Junk
'Loose nuts and bolts... had been accumulating in Earth orbit'

Baidu Kuaisou Dune Poison Snooper Chopsticks
'Unobtrusive inspections with... snoopers... Will it be chaumas - poison in the food?'

Crystalized Light Created At Princeton
'It will be matter, matter made of light...'

The Amazing Gravity-Assisted Journey Of Rosetta
'...We used the [moon's] attraction to give us additional starting speed'

AirDog Auto-Follow Drone Captures Your Awesomeness
'Tight mid-shot and pull out on but behind me...'

Dell's Venue 8 7000 Tablet With RealSense Depth-Mapping
Focus on any part of a picture later.

Google's Cartographer Backpack For Indoor Mapping
'He reached to unsnap the cartograph from his belt.'

T-Mobile Sues Huawei Over Button Pushing Robot Idea From The 1930's
'Not the slightest change in their working betrayed the fact that they were now being directed by a machine instead of human beings.'

Hayabusa-2 Asteroid Cannon Strategy From 1950's SF Novel
'Fire streaked in a thin line from the muzzle of a cannon-like tube...'

Dyson 360 Eye Robot Vacuum Cleaner
'It vacuum-cleaned... or polished, consulting tapes in its idiot memory to decide which.'

First 3D Printer In Space?
'It can be mass-produced only in the orbiting factories...'

Google's Project Wing Will Find You
'Mechanical entities that flit at the edges of our vision, that can go anywhere, that are in our very midst...'

3D Printed Space Pizza For Astronauts
Put those butcher knives aside, and let me save that meal!

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.