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Devialet wants its sound tech in everything you use

Devialet wants its sound tech in everything you use | cross pond high tech | Scoop.it

While the Phantom is a product that’s actually for sale in places such as the Apple store, its real purpose is to showcase Devialet’s audio technologies. In a recent interview, Devialet CEO Quentin Sannié explained that the company’s ultimate goal is to get its technology into everything from phones, to cars, to television sets — really, anything that outputs audio.

The Phantom is a showcase for two of Devialet’s developments: a software-based technology called Speaker Active Matching (SAM) and a hardware-based amplification system that combines an analog amp with a digital one. Sannié says that the SAM algorithm could be implemented into any digital signal processor, even the one in your phone, and can improve the sound quality of hundreds of devices. The algorithm is developed by measuring the behavior of each speaker and then creating a mathematical model to control how the speaker behaves. This measurement process can be done in about 10 minutes using special, laser-based tools the company developed for it.

The Phantom is a showcase for Devialet's technologies

Sannié says that a system using SAM can reproduce lower frequencies without changing its hardware at all, and it can even enable noise-cancellation without the need for a subwoofer. It’s part of the reason that the Phantom’s relatively small drivers move so quickly when the volume is cranked up and have little to no distortion. Sannié claims that SAM could even be used by a streaming service to optimize audio before it’s even delivered to a listener. A user could tell the service what kind of speakers or headphones they are using and the sound would be tailored just for them.

Philippe J DEWOST's insight:

Devialet Chief Maestro details his grand music sheet in this interesting feature. La French Tech has a voice !

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George Goodman's curator insight, March 14, 2016 12:50 PM

Devialet Chief Maestro details his grand music sheet in this interesting feature. La French Tech has a voice !

Ty Garibay's curator insight, March 14, 2016 8:10 PM

Devialet Chief Maestro details his grand music sheet in this interesting feature. La French Tech has a voice !

Scooped by Philippe J DEWOST
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Human hearing beats the Fourier uncertainty principle

Human hearing beats the Fourier uncertainty principle | cross pond high tech | Scoop.it

People can simultaneously identify the pitch and timing of a sound signal much more precisely than allowed by conventional linear analysis. That is the conclusion of a study of human subjects done by physicists in the US. The findings are not just of theoretical interest but could potentially lead to better software for speech recognition and sonar.

 

Human hearing is remarkably good at isolating sounds, allowing us to pick out individual voices in a crowded room, for example. However, the neural algorithms that our brains use to analyse sound are still not properly understood. Most researchers had assumed that the brain decomposes the signals and treats them as the sum of their parts – a process that can be likened to Fourier analysis, which decomposes an arbitrary waveform into pure sine waves.

Philippe J DEWOST's insight:

Humain Brain vs. Fourier + Gabor : 1-0

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