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Machine hearing, also known as machine listening or computer audition is the ability of a computer or machine to take in and process sound data such as speech or music. [8] [9] This area has a wide range of application including music recording and compression, speech synthesis and speech recognition. [10]
Sound recognition can classify feature vectors. Feature vectors are created as a result of preliminary data processing and linear predictive coding. Sound recognition technologies are used for: Music recognition; Speech recognition; Automatic alarm detection and identification for surveillance, monitoring systems, based on the acoustic environment
Surface acoustic wave sensors are a class of microelectromechanical systems (MEMS) which rely on the modulation of surface acoustic waves to sense a physical phenomenon. The sensor transduces an input electrical signal into a mechanical wave which, unlike an electrical signal, can be easily influenced by physical phenomena.
Computer audition (CA) or machine listening is the general field of study of algorithms and systems for audio interpretation by machines. [ 14 ] [ 15 ] Since the notion of what it means for a machine to "hear" is very broad and somewhat vague, computer audition attempts to bring together several disciplines that originally dealt with specific ...
Teleceptive active sensory systems collect information by directing propagating energy and detecting objects using cues such as time delay and intensity of return signal. Examples include echolocation of bats and electrosensory detection of electric fish. Contact active sensory systems use physical contact between stimuli and organism. Insect ...
Although the system is sensitive to both temperature and strain variations these can often be separated as those due to temperature tend to occur at a lower frequency range than strain. Unlike other distributed fiber techniques such as those based on Brillouin or Raman scatter, distributed acoustic sensing is only able to detect changes in ...
Many types of sensors use capacitive sensing, including sensors to detect and measure proximity, pressure, position and displacement, force, humidity, fluid level, and acceleration. Human interface devices based on capacitive sensing, such as touchpads, [1] can replace the computer mouse.
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
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