Tag Archives: Vibration

Recovery of sound from video

Research carried out by the Massachusetts Institute of Technology, along with Microsoft and Adobe, has been used to extract audio data from video by analysing the tiny, imperceptible vibrations that occur in objects when they are subject to a sound.

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Solent Acoustics is running an MSc in Applied Acoustics

The MSc in Applied Acoustics targets those who are working in, or wish to work in professional fields linked to acoustics.   It particularly targets people with relevant qualifications who would like to develop their acoustics knowledge to work in acoustics consulting, but it is also highly relevant to people working in environmental health, occupational health and safety, product development and design, audio engineering, mechanical engineering and environmental consulting.

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The LDV: Laser Doppler Vibrometer

Solent Acoustics has recently acquired a laser doppler vibrometer!

Produced by Polytec, the PDV-100 is capable of non-contact velocity measurement from 0 to 22kHz with a range of around 30m. The laser itself is eye-safe, making it perfect for use in student projects. It is also very portable which allows us to carry out measurements in a wide range of locations, even with limited access.

The LDV can be used for almost any vibration measurement without providing an additional mass to the subject under test as an accelerometer would. This increases the accuracy of vibration measurements while also allowing us to investigate things not possible with accelerometers, such as the sound of a spiders mating dance!

For more information on the PDV-100 read the data sheet provided by Polytec, found here: http://goo.gl/wisNsw

Tour Our Facilities

Here at Southampton Solent University we were lucky enough to have a brand new hemi-anechoic chamber opened on May 2013. Take a look around in the interactive street-view image below, or hit continue reading to see some higher quality images of our equipment.

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