Tag Archives: audio-visual

BETT focus: The importance of audio in classrooms

lightspeed

Despite taking up half of the term “audio-visual”, the impact of audio on offer at BETT seemed to be lacking. Although many of the latest interactive screens had integrated speakers, there was only a small cross-section of companies offering speakers or microphones to enhance both the classroom and a presentation theatre within an education establishment.

Studies have been carried out to prove the impact that classroom noise can have on students and Lightspeed’s latest Exciter technology takes this research into account. According to a study from 1994, a professor of Audiology proved that ELL (English Language Learning) children were affected by ambient noise in a classroom. Word recognition by these pupils was affected by volume, distance from the speaker and how the audio was distributed, but all of the children; both native and non-native had better understanding when little or no additional noise was created, through issues like feedback, or buzzing electronics. In a current situation where classrooms are full to the brim, distance cannot often be altered, so teachers need to be as audible as possible, regardless of the room size.

Lightspeed have taken these ideas to create a speaker that enhances both audibility (the volume) and intelligibility (the clarity) in the classroom by using a panel style instead of a cone-shaped speaker. This helps distribute soft consonant sounds and creates a clear sound without having to use maximum volume. This simple yet effective technology creates a natural voice for the teacher and feedback is eliminated regardless of where the teacher is located in the room.

 

Lightspeed's TopCat speaker

Lightspeed’s TopCat speaker

If you’re interested in enhancing your audio in either the classrooms or would like to upgrade your school hall acoustics, our free health checks can offer you advice and support regarding your specific needs. We can carry out acoustic tests, as well as finding ways to minimize feedback and ambient noise, so contact us via our query forms and we can get back to you.

 

New material likely to cause an electronic revolution

graphene-spl

When something involving technology or science is broadcast on the BBC’s news channels, you know it must be big news and the fact that said science could revolutionize audio-visual gets us at Paragon very excited!

After being identified in 2004 by a pair of university students in Manchester, interest in graphene has been increasing rapidly with electronic companies such as the mighty Samsung being granted patents. The number of filed patents has increased rapidly since 2007, with entities from the likes of China, America, South Korea and a few from Britain leading the way.

Graphene has caught the IT and AV world’s attention due to being ultra-thin and incredibly flexible without losing any strength, which enables possibilities for bendy screens, lighting within walls and power saving batteries. For those of us that aren’t as scientifically savvy, graphene is a form of carbon that is only one atom thick and arranged in a honeycomb structure. This is what helps it to be a great conductor, without taking up a lot of room and is rumored to eventually replace silicon in electronics. Below is a video by Samsung, showcasing some applications they feel will eventually be possible with graphene.

Make sure to keep an eye on the Tech Zone, as we plan to follow this story through its evolution and are intrigued as to when this adaptation will be available.