Inexpensive acoustic projector delivers sound to moving targets

Imagine if you were a spy who needed to receive secret messages while you walked around a crowded room, but you didn’t want to wear an earpiece. Well, a cheap new device could help. It’s billed as being “the first sound projector that can tra… Continue reading Inexpensive acoustic projector delivers sound to moving targets

Building DIY Acoustic Panels To Cut Down On Echoes

Plenty of hackers and makers are passionate about content creation. In the dog-eat-ice-bucket-challenge world of online video, production value is everything. If you want to improve your audio quality then cutting down on echoes is a must, and these acoustic panels will help you to do just that. 

The build …read more

Continue reading Building DIY Acoustic Panels To Cut Down On Echoes

Dawn of the noisy electric car: EU laws requiring audible warning sounds take effect July 1

From July 1, any electric vehicle with four or more wheels that wants to be approved for road use in the European Union is going to have to have an “Acoustic Vehicle Alert System,” or AVAS, fitted, making a continuous noise of at least 56 dec… Continue reading Dawn of the noisy electric car: EU laws requiring audible warning sounds take effect July 1

Build Your Own Anechoic Chamber

For professional-level sound recording, you’ll need professional-level equipment. Microphones and mixing gear are the obvious necessities, as well as a good computer with the right software on it. But once you have those things covered, you’ll also need a place to record. Without a good acoustic space, you’ll have all kinds of reflections and artefacts in your sound recordings, and if you can’t rent a studio you can always build your anechoic chamber.

While it is possible to carpet the walls of a room or randomly glue egg crate foam to your walls, [Tech Ingredients] tests some homemade panels of …read more

Continue reading Build Your Own Anechoic Chamber