Date de Parution: 2015-05-27
Nordic Semiconductor announced that, following a successful Kickstarter event, French startup 3D Sound Labs is using Nordic nRF51822 system-on-chip (SoC) to provide Bluetooth Smart (formerly known as Bluetooth Low Energy) wireless communications for smartphones and smart phones. Neoh 3D audio headsets will start shipping in June.
Neoh headphones reportedly use the company's binaural algorithm (3D sound on headphones) to produce truly immersive 3D spatial sound, which uses advanced 9-axis motion sensing (including gyroscopes, accelerometers and magnetometers) ) To track the smallest user head movements. 3D Sound Labs says no one can stay completely still while watching a movie, and compensating for tiny motions is the most important because the brain uses these micromotions for sound localization. This means that even if the wearer shakes his head (for example, looking right or left), as in a traditional movie theater or home theater sound system, the sound field remains static in Neoh headphones.
The Nordic nRF51822 SoC is used to send motion sensor data to a free partner, the Neoh Player application, which runs on any Bluetooth Smart Ready smartphone or tablet (a laptop version is under development).
Audio reproduction has evolved from mono (one speaker or "channel") to stereo (two channels) and has since evolved into the original surround sound format for movie soundtracks: Dolby Pro-Logic . These include left and right stereo channels, a central "voice" channel (mainly used for on-screen dialogue), and a mono rear channel for "surround" sound.
3D Sound Labs states that it has evolved further to 5.1, providing five independent surround sound channels (that is, the rear channel is stereo instead of mono) and a dedicated subwoofer channel (in 5.1 " .1 "); 6.1 (the rear stereo channel gets an additional center mono channel; and the latest 7.1 (the rear channel is divided into two stereo channels) format; not to mention some upcoming" real "3D audio formats These formats can provide a more realistic sound experience.
According to 3D Sound Labs, with the Neoh 3D headset, all of these sound formats are available through the free partner smartphone or tablet Neoh Player application (upcoming notebooks) Computer version) to complete the conversion of complex audio signal processing. The 360-degree sound field of up to 30 unique channels makes the sound really move around the user and feel from any distance or direction.
"This is not only Creates an amazingly realistic surround sound experience that is superior to any current home theater audio system Real portability is now available, and users can enjoy and enjoy it anytime, anywhere, "he said. 3D Sound Labs co-founder and vice president of product and operations Dimitri Singer." And great, this immersive experience can also be used for Video games, and it can give users incredible tactical advantages by improving users' perception of the gaming environment and making them respond faster and better to gaming events. "
Neoh 3D headphones are rechargeable by 3.7 V lithium-ion Battery-powered, it can run for at least 18 hours between charges (about 12 movies).
Singer said that the 3D Sound Labs chose the Nordic nRF51 series because it can meet its ultra-low power consumption requirements, and it occupies hardware and software. The best compromises have been made in terms of ground area, including the embedded ARM Cortex M0 core, which can not only run the Bluetooth smart protocol stack and 3D Sound Lab application software.
"Working with many semiconductor suppliers, I was surprised by the dedication of the Nordic Semiconductor team and how hard they worked to provide customers with truly first-class service." "We have handled all the businesses we encountered in a timely and efficient manner. And technical support issues. This allowed us to free up our energy and focus on developing the best products for our customers. "
