Sound analysis - Import export

Cabins are used to determine the acoustic absorption properties of materials and are generally called "acoustic test cabins" or "reverberation rooms". These cabins are designed to detect the sound absorption properties of materials against frequency, measure their acoustic performance and determine their properties. Here are some of different types of cabins: ​ Reverberation Rooms: In these rooms, sound waves hit and reflect on surfaces and resonate for a while. In this process, the acoustic absorption capabilities of the material are measured. Acoustic Test Booths: These booths are designed to evaluate the acoustic performance of specific materials or products. They often include high-sensitivity microphones, sound sources and measuring devices. Acoustic Rooms: These rooms are generally large and can be specially designed. It is used for larger-scale or special tests of the acoustic properties of materials.

Acoustic Testing Cabins are specialized enclosures designed for conducting precise evaluations of soundproofing and acoustic performance. These cabins provide controlled environments for testing materials, components, and products under various noise conditions. Equipped with advanced sound measurement instruments and analysis tools, these cabins facilitate comprehensive acoustic testing. They allow for the assessment of sound absorption, transmission loss, reverberation time, and other key parameters crucial for evaluating noise reduction capabilities. Acoustic Testing Cabins feature customizable configurations to accommodate different testing requirements and sample sizes. They offer flexibility in testing methodologies and ensure accurate and reliable results.

Acoustics Rich and powerful acoustic features for your simulation needs Actran Acoustics is the foundation module of the Actran family and is both a standalone tool and a pre-requisite for advanced modules like Actran VibroAcoustics, Actran AeroAcoustics or Actran TM. Actran Acoustics contains a wide set of acoustic modeling features making it the CAE tool of choice for simulating a large variety of problems, from the simplest component to the most elaborate system. The Actran Acoustics product relies on Free Field Technologies’ exclusive powerful, robust, fast and reliable acoustic finite and infinite element library. Sound fields in cavities are easily analyzed with Actran Acoustics which offers both modal and physical approaches. Absorbing walls may be modelled in detail using impedance conditions or porous material models. Actran Acoustics is also uniquely suited for sound radiation analysis where it brings unprecedented efficiency, speed and productivity to your analysis process. Actran Acoustics features seamless interfaces with most FEA structural analysis codes like NASTRAN, ABAQUS™ or ANSYS™. Actran Acoustics also offers powerful features for analyzing sound propagation in ducts and may be used for designing e.g. intake and exhaust lines or air distribution systems in buildings, aircrafts and cars. Among the many advanced features available in Actran Acoustics are the handling of a mean flow field (convected acoustic propagation) and temperature gradient effects. Specific elements are also available to handle visco-thermal effects important when sound waves propagates in narrow ducts or thin cavities (eg: hearing aids, solar array panels, etc.). Pressure field generated by the vibration of a powertrain. Target Applications: Sound radiation by vibrating structures: powertrain, engine components (oilpan, intake manifold and air filter, valve cover, etc.), compressors, electrical motors, loudspeakers and more. Intake and exhaust noise, including complex mufflers and silencers. Air conditioning units and distribution systems (calculation of transfer matrices coefficients). Sound absorption inside passenger compartment of cars, trains and aircrafts. Sound propagation in complex media with mean flow or temperature gradient. Audio devices such as telephones, hearing aids or musical instruments.