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Signal Processing

Paul Vo with his Vo-96 Acoustic Synthesizer

Back in November 2012, we brought you news of a new pickup harmonizer technology dubbed LEV-96 in prototype testing over at Moog Music. Sat in the sound hole of an acoustic guitar, the device took precise control of string vibrations to offer an expansive, colorful and rich harmonic backdrop to what was being played. Paul Vo, the inventor of the newly-renamed Vo-96 Acoustic Synthesizer, has since made some improvements to electronics, user interface and mechanical design, and has now launched a crowdfunding campaign to get what he calls the "most fundamental and radical innovation in the music industry today" into the hands of musicians.  Read More

Working in the strings before I plug in the AT-200 for the first time – it feels good in t...

Gizmag has been following the development of the Antares Auto-Tune for Guitar technology with great interest since it was first teased back in May 2011. In January 2012, it was launched in two guitars at the Winter NAMM show, but only one of those has actually made the leap into production. Peavey released its AT-200 as last year came to a close, and I've spent the last few weeks in the company of this game-changing guitar while also chatting with some of the folks involved in its development.  Read More

Three new BOSS stomps featuring Roland's Multi-Dimensional Processing technology have been...

The company that's said to have put the "stomp" in stompbox has detailed three new guitar effects pedals, featuring a new technology called Multi-Dimensional Processing (MDP) developed by its parent company Roland. The TE-2 Tera Echo is a landmark pedal not only because of the new signal processing technology, but also by virtue of it being the one-hundredth BOSS Compact Series model to be released. The MO-2 Multi Overtone uses a guitar's harmonic characteristics to build unique rich sounds that enhance the normal tone. Roland says that the DA-2 Adaptive Distortion unit makes use of the MDP technology to deliver perfect distortion wherever you play on the neck.  Read More

Peavey has announced the immediate availability of its AT-200 guitar featuring Auto-Tune f...

Peavey's AT-200 electric guitar featuring Antares Auto-Tune pitch correction technology, which was launched in January 2012, has now been released.  Read More

The new diode is made from two silicon rings that measure just 10 microns in diameter and ...

When it comes to speed, photons leave electrons for dead and have a higher bandwidth, which means optical computers will be much faster than their current electron-based cousins. While optical diodes for use in optical information processing systems already exist, these require external assistance to transmit signals so cannot be readily integrated into computer chips. Now researchers at Purdue University have developed a “passive optical diode” that not only doesn’t require any outside help to transmit signals, but is also so small that millions would fit on a computer chip, potentially leading to faster, more powerful information processing and supercomputers.  Read More

Antares Audio Technologies has announced the development of its Auto-Tune digital signal p...

Since Antares Audio Technologies first introduced its Auto-Tune vocal pitch correction technology in the late 1990s, musicians and fans alike have been somewhat divided about its use. Some artists like Cher and, more recently, T-Pain have openly embraced the voice processing tool while others have kept its use a closely guarded secret, and, at the opposite end, calls for an end to robo-voice gimmickry have been made by the likes of Jay-Z. Now, the company has announced that its Auto-Tune processing technology is being developed for the electric guitar - offering six-string slingers effortless intonation, pitch perfect tuning and access to whole new worlds of otherwise unavailable tone.  Read More

Sony's DR-GA200 headset

Hardened first person shooter (FPS) veterans know that your ears can be as important as your eyes when battling hordes of enemy combatants. Such veterans will also be aware that the staccato of gunfire and the sound of exploding body parts aren’t always appreciated by other members of the household – particularly in the early hours. In response to extensive research to show what different gamers want from their headsets, Sony has unveiled its DR-GA500 and DR-GA200 headsets designed to maximize spatial awareness without waking up the neighbors.  Read More

Experimental setup for THz-pump and optical-probe measurements used by the researchers

It’s a sign of the times when the speed of electrons moving through wires is seen as pedestrian, but that’s increasingly the case as technology moves towards the new world of optical communication and computing. Optical communication systems that use the speed of light as the signal are still controlled and limited by electrical signaling at the end. But physicists have now discovered a way to use a gallium arsenide nanodevice as a signal processor at “terahertz” speeds that could help end the bottleneck.  Read More

Colorized trace of pulses from the NIST/JILA dark pulse laser, indicating the light output...

OK, you’re right, it 's impossible to actually beam “nothing” across a room. It is, however, possible to beam light across a room, sending information in the form of extremely short dips in that light. That’s what America’s National Institute of Standards and Technology (NIST) has been doing with its dark pulse laser. Whereas regular lasers transmit information by using darkness as a zero point and light pulses as data, this one uses light as a zero point, with darkness as the data.  Read More

The WiNRADiO PFSL-G3 Portable Field Strength Logging and Surveillance System

Whether you’re tracking a moose, trying to locate a sinking ship, or conducting a little spying, you’re going to be using a field strength logger. One of the slickest units currently available is the WiNRADiO PFSL-G3 Portable Field Strength Logging and Surveillance System. Whereas such systems used to consist of several pieces of equipment, the PFSL-G3 is all contained in one portable, compact, rugged unit. It also now comes with an optional TETRA control protocol decoder, allowing users to prioritize signal traffic by importance.  Read More

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