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ACTRAN (acronym of ACoustic TRANsmission, also known as the Acoustic NASTRAN) is a finite element-based computer aided engineering software modeling the acoustic behavior of mechanical systems and parts. Actran is being developed by Free Field Technologies, a Belgian software company founded in 1998 by Jean-Pierre Coyette and Jean-Louis Migeot.
The lack of reflections in a free field means that any sound in the field is entirely determined by a listener or microphone because it is received through the direct sound of the sound source. This makes the open field a direct sound field. [3] In a free field, sound is attenuated with increased distance according to the inverse-square law. [1]
An acoustician version has been offered as Smaart Acoustic Tools, however as of Smaart v7.4, Acoustic Tools have been included within the Impulse Response mode of Smaart. A standalone sound pressure level monitoring-only version called Smaart SPL was released in 2020.
Bioacoustics is a free R package available in CRAN to analyze audio recordings and automatically extract animal vocalizations. ItcContains all the necessary tools to process audio recordings of various formats (e.g., WAV, WAC, MP3, ZC), filter noisy files, display audio signals, detect and extract automatically acoustic features for further ...
The three main groups of microphones are pressure, free-field, and random-incidence, each with their own correction factors for different applications. [1] Well-known acoustic sensor suppliers include PCB Piezotronics, Brüel & Kjær, GRAS and Audio Precision. [2]
The company originally developed a product called the Song Sleuth, a device that would attempt to automatically identify birds from their songs in real time in the field. As this concept proved too expensive for the consumer market, the underlying technology was used to develop autonomous acoustic and ultrasonic recorders and analysis software ...
Enhanced Acoustic Simulator for Engineers (EASE) is an engineering design and analysis software for optimizing acoustics. [1] The full product is licensed and copy protected. It can perform complex analysis in three-dimensional space. There is a free-to-use web-based version available for two-dimensional analysis with limited geometry options. [2]
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