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Articles related to "signal"


Amazon Releases New Public Data Set to Help Address “Cocktail Party” Problem

  • Maarten Van Segbroeck, an applied scientist in the Alexa International group and first author on the associated paper, cowrote this post with Zaid Ahmed.
  • Amazon today announced the public release of a new data set that will help speech scientists address the difficult problem of separating speech signals in reverberant rooms with multiple speakers.
  • Each participant was outfitted with a headset microphone, which captured a clear, speaker-specific signal.
  • Also dispersed around the room were five devices with seven microphones each, which fed audio signals directly to an administrator’s laptop.
  • The data set we are releasing includes both the raw audio from each of the seven microphones in each device and the headset signals.
  • The headset signals provide speaker-specific references that can be used to gauge the success of speech separation systems acting on the signals from the microphone arrays.

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AI Detects Heart Failure from One Heartbeat: Study

  • Doctors can detect heart failure from a single heartbeat with 100% accuracy using a new artificial intelligence-driven neural network.
  • That’s according to a recent study published in Biomedical Signal Processing and Control Journal, which explores how emerging technology can improve existing methods of detecting congestive heart failure.
  • Led by researchers at the Universities of Surrey, Warwick and Florence, it shows that AI can quickly and accurately identify CHF by analyzing one electrocardiogram (ECG) heartbeat.
  • Unlike existing methods that are often time-consuming and inaccurate, their model combines advanced signal processing and machine learning tools on raw ECG signals to improve detection rates dramatically.
  • In another part of the experiment, a specific CNN model was used to improve the accuracy of CHF detection while taking into account comparable models.

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Smart speaker system uses white noise to monitor infants' breathing

  • googletag.cmd.push(function() { googletag.display('div-gpt-ad-1453799284784-2'); }); Now researchers at the University of Washington have developed a new smart speaker skill that lets a device use white noise to both soothe sleeping babies and monitor their breathing and movement.
  • "If we could use this white noise feature as a contactless way to monitor infants' hand and leg movements, breathing and crying, then the smart speaker becomes a device that can do it all, which is really exciting." (adsbygoogle = window.adsbygoogle || []).push({}); White noise is a combination of different sound frequencies, which makes a seemingly random soothing sound that can help cover up other noises that might wake a sleeping baby.
  • Now researchers at the University of Washington have developed a new smart speaker skill that lets a device use white noise to both soothe sleeping babies and monitor their breathing and movement.

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Here's how the Air Force trains its pilots to survive, evade, resist, and escape when behind enemy lines

  • Being an aircrew member in the armed forces isn't just flying a plane, helicopter or a jet.
  • It's putting your own personal safety on the line to protect people from threats known and unknown.
  • The armed forces puts a great emphasis on ensuring these pilots are safe and have the knowledge and skills to make it home safe in any situation they might endure.
  • This responsibility heavily lies on the shoulders of the United States Air Force's survival, evasion, resistance, and escape (SERE) specialist, whose main job is to train aircrew and other military personnel how to survive in a variety of environments and conditions.
  • O'Grady who in 1995 was shot down and stranded in enemy territory for six days during the Bosnian War, used these skills taught by SERE to return to safety.

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