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 -
AIREAL Lets You Feel Virtual Objects In The Open Air
'Startled, he touched his mouth. 'How the devil did you do that?' he shouted.'- Frederick Pohl, 1965.
Millimeter-Scale Computing For 'Internet of Things'
'In their megalomania they thought to make the very sand beneath their feet intelligent...'- Stanislaw Lem, 1965.
Fujitsu Touchscreen Mixes Real And Virtual Worlds
'His hands flashed over the keyboard - it had not been there a moment before, but it was operative...'- Frederik Pohl, 1965.
Nanowire Memristor Networks Form 'Brains'
'He had constructed ... a brain, of metal... whose atomic structure he claimed was analogous to the atomic structure of a living brain.'- Edmond Hamilton, 1926.
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.
Tongue Mouse Created By Valve Engineer
'He pressed hard with his tongue against his right upper first molar.'
K5 Autonomous Data Machine The Future Of Mall Security
''Halt!' A robot guard appeared...'
RF Safe-Stop Shuts Cars Off
'...a police control-override.'
Army's New Bird-Like Surveillance UAV
'The prototype blue-bellied, gray-backed tracer-bird with the wide-angle eye...'
Honda's Tumblebug - The UNI-CUB beta
'A tumblebug does not give a man dignity...'
NASA's LADEE Enters Lunar Orbit
'... dust normally on the surface picks up and keeps a charge.'
3D Printing An Entire Car
"... Almost as good as the original it was printed from."
Aldebaran Robot Talks Like C3PO - Almost
'See Vee Threepio - Vee for versatility - at your service...'
Google's Skin Tattoo Lie Detector
'Three and a half centimetres in diameter, permanently fixed in the centre of his forehead.'
inFORM Dynamic Shape Output Device
Like that pushpin device you remember, but supercharged.
Owlet Vitals, The Future Of Baby Monitoring
'In every diaper there is a fine copper wire...'
Robert Heinlein, Your Personal Electric Helicopter Will Be Ready In 2016
"They were half way home when a single flyer, hopping free in a copter harness, approached the little parade."
WildCat Runs Faster Than You, Untethered
'...moving with such drifting ease that it was like a single solid cloud of black-grey smoke blown at him in silence.' Almost.
HiBot's ACM-R5H Robot Video Shows Graceful Terminator-Style Swimming
'No! No! Aaaaaaarrrrrrgh!'
tDCS Jumpstarts Your Future
'We invented a scanner that can change the labyrinthine neural connections of the brain by tiny electronic impulses...'.
RealView Interactive Live Medical Holography
Surgeons can see an organ in its entirety in a live image.
More SF in the News Stories
More Beyond Technovelgy science news stories