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 -
IBM's Neuromorphic Chip
'The full sensitivity of the neuristor brain was not appreciated at first.' - Roger Zelazny, 1976.
Software Agents Fight Unseen On The Web
'...Worms and counter-worms loose on the data-net.' - John Brunner, 1975.
Terminal Snooping At Bloomberg
'The evidence began with a slowed response at her computer terminal.' - Frank Herbert, 1977.
Will There Be A Digital Afterlife?
'A quick exchange of energies resulting from the relocation of discorporate states.' - Samuel R. Delany, 1968.
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.
Untethered Drone Gets Wireless Power
'We'll use my 'broomstick'.'
ESA Plans Akon Projectile To Europa ala Jules Verne
'... might [it] not be possible to project a shot up to the moon?'
Transparent OLED TV By Panasonic
It's the look of things to come.
Shape-Memory Metal Transforms Millions Of Times
'Annealed in any shape for a time, and codified, the structure of that shape is retained down to the molecules.'
Advertising Drones Hover Over Traffic In Mexico
'Blurbflies are allowd to travel the streets, buzzing their adverts alive and direct...'
How Can Amazon Patent A Voice-Controlled Drone?
''Tight mid-shot...' he told it.'
'North Sense' Wearable Piercing From Cyborg Nest
'The fingers opened from the many-scaled stellarimeter grafted onto his palm.'
proCover Smart Sock Prosthetic Limb Enhancement
'Series of chemelectric afferent nerve-analogues, which permitted it to gauge to an ounce...'
Robots And AIs Will Replace Humans At 7 Percent Of U.S. Jobs
'And Mike took on endless new jobs.'
Human Doctors Still Better Than Computers
'Nowadays surgery was normally done by autodocs...'
FEDOR Humanoid Robot To Join Russians In Space
Am enjoying view of Russian robot.
BMW Self-Balancing Motorcycle - Never Put Feet On Road
'He had never ridden any motorized device that lacked onboard steering and balance systems...'
MicroTug Is A Micro Robot Beast
'And it had been dragging something...'
Linear Elastic Actuator in Parallel (LEAP) - It's A Hopping Robot
'...Probably the most grotesque forms of transportation ever invented.'
Smart Glove Controls 3D Printed Robotic Arm (Waldo!)
'Waldo flexed and extended his fingers gently; the... waldoes... followed in exact, simultaneous parallelism.'
Wearables For Animals Totally A Thing
'Twin deformities on either side of his skull had been engineered to house sensor units.'
More SF in the News Stories
More Beyond Technovelgy science news stories