New flat panel speakers targeted for the automotive industry

NXT is a company in the UK that has developed flat panel speakers. They make speakers for ceiling tiles, transparent speakers, car speakers, speakers for PAs, picture panels, speaking billboards, and has also been incorporated into the lid of an ACER laptop. Their latest product Audio Full Range (AFR) loudspeaker is a compact single-diaphragm, drive unit that is meant to replace the woofer, tweeter and associated filter components. The product is targeted for use the automotive industry.

Read more on the NXT web site.

Recent additions

There hasn’t been news to report recently, so you haven’t seen many new articles on the web site. There have been many new additions to the web site such as conference listings and a couple more files to download.

Phased fuel injectors reduce noise from jet engines

Gas turbine engines used in power generation and jet engines generate substantial noise from the combustion process, and the interaction of the expanding hot gases and the combustion chamber. Researchers have found that by using fuel injectors that are phased to release fuel at the correct time, the combustion pulses can be used to damp the system.

Read the full story on the ASME web site.

Authenticity of Osama bin Laden’s recording

The recent release of a tape recording of Osama bin Laden’s voice has officials questioning the authenticity of the speaker. Signal processing techniques and speech analysts have been employed to determine if the recording is of bin Laden or a skilled impersonator.

Read the story on yahoo.com.

ANSYS v7.0 released

Ansys have released version 7 of their finite element analysis software. There have been many improvements, including optimization routines, new elements, and my favourite – the ability to export analysis results into Microsoft Excel spreadsheets.

Read more on the ANSYS web site.

Concert hall acoustics

Leo Beranek is about to release the second edition of his book, “Concert Halls and Opera Houses: Music, Acoustics, and Architecture”, which is due out on February 15, 2003.

Click here to read a reviews of the 1st and 2nd editions on noiseboard.com.

Aircraft cabin simulator

BRE has developed an aircraft cabin simulator for an Airbus A300, and are developing a similar mock-up for a A380. The simulator is used for testing including noise, vibration, temperature, and humidity on cabin and cockpit crew and passengers.

Read the story on the SAE web site.
Read about the simulator on the BRE web site.