Acoustics
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Boss has added an interesting new amplifier to its acoustic range. The AC-22LX battery-powered compact amplifier for acoustic instruments rocks Air Feel processing for faithful natural tones at performance volumes.
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Due to factors such as murky water and limited peripheral vision, it can be hard for scuba divers to keep track of where their fellow divers are at all times. A newly developed smartwatch app, however, may soon make it much easier for them to do so.
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EPFL researchers have developed a 100% effective, ultra-thin active noise cancelling system that uses an ionized air plasma propulsion system instead of speakers. A 17-mm-thick (0.6-in) layer can block 20 Hz noise as well as a 4-m-thick (13-ft) wall.
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Back in 2017, HyVibe launched an Indiegogo for a hybrid acoustic with built-in digital smarts. This was followed by a kit to give such superpowers to any acoustic. Now the company is back with an Essential system that players can install themselves.
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Whisper Aero says its electric aircraft propulsion systems are "20% more efficient and 100x quieter than anything else on the market." They're designed for drones, planes and possibly eVTOLs, and there's also a funky-looking concept plane.
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Researchers have taken another step forward in medical micro-robotics, designing a tiny sound-propelled bot with a unique design that mimics natural swimmers like bacteria. It can quickly move around the body to deliver drugs where they're needed.
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Using touchscreens or buttons to control devices isn't always practical, and voice commands may not work in loud environments. A new system offers an alternative, in that it utilizes acoustic waves which travel across the surface of existing objects.
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A new 16-string, single-fret acoustic instrument called the Hanago has launched on Kickstarter, which is designed to combine the best aspects of piano and guitar to make learning to play easy, while also laying down the foundations of music theory.
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While there are some mechanical problems that can easily be detected by a car's onboard sensors, there are others which are a bit trickier. The V2M system is designed to catch those other ones, by listening for them using onboard modules.
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Scientists have created “acoustic holograms” that can assemble matter into 3D objects, using just sound. The technique works with various types of particles and even living cells, allowing for a new kind of 3D printing that’s fast and contact-free.
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Engineers have developed a new system that can move objects without physical contact. The technique involves ultrasound waves acting on specialized surfaces to push or pull objects in set directions, which could help in manufacturing and robotics.
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While seabed-located cameras are great for tasks such as monitoring wildlife, powering them can be challenging. That's where a new MIT-designed camera comes in, as it requires no battery, plus it wirelessly transmits its photos through the water.
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