Tag Archives: signal processing

Redefining Signal Processing with Air-T

Artificial intelligence (AI) is an area of computer science that works towards creating machines that could make decisions, react, and interact just like a human would. To be considered AI a computer must be capable of recognizing speech, learn, plan, and solve problems. To do all this a computer must have a way to perceive the world and even interact with it (move). This type of technology has been used for personal assistants such as Siri and Alexa, for customer prediction (Netflix and Pandora), for autonomous vehicles, gaming etc. However, one application that has not been exploited is for signal processing.

Deepwave Digital decided to be pioneers in using AI for signals. The company created the AIR-T (Artificial Intelligence Radio Transceiver) which is a high-power SBC that uses NVIDIA Jetson TX2 for signal processing and deep learning applications.

Nowadays we deal with an increasing number of signals, because of Wi-Fi and cellular communications, and the technology is still human dependent to select the correct frequencies. Because of this, the need for an AI to do the work for us has become increasingly high, and as it turns out the AI can do the work better than us.

The AIR-T board also includes Xilinx Artix 7 FPGA and an Analog Devices 9371 MIMO transceiver with two RX channels of 100 MHz and a couple of TX channels of 250 MHz for connectivity, the device includes Bluetooth, Wi-Fi, HDMI, GPIO/UART, USB 2.0 and 3.0 etc. It uses Ubuntu 16.04, and it can be programmed using Python or C++.

All these characteristics make the device adaptable to many applications which will allow users to create and shape different projects. This project gives users the ability to adapt to software defined radio. Deepwave said:

This versatile system can function as a highly parallel SDR, data recorder, or inference engine for deep learning algorithms. The embedded GPU allows for SDR applications to process bandwidths greater than 200 MHz in real-time.

The device is not yet on sale, and Deepwave is expected to launch a crowdfunding to commercialize the product in the future, so there is still no information about price or sellers.

The idea is to redefine how signal processing is done using machine learning.

[source]

Tune Your String Instruments Perfectly With Roadie Tuner

Roadie Tuner is a dream come true for guitarists! The automatic ring tuner, that is quick, easy to use, and three times more accurate than the human ear, is dedicated to beginner guitarists who are almost always frustrated with not knowing how to tune their guitar. This ultimate musician’s tool works on all string instrument to fine tune them in seconds, including bass guitars.

Roadie Tuner pairs with a free app on your smartphone, iPod or tablet through Bluetooth 4.0 smart. All the audio processing happens on the smartphone which sends tuning commands to Roadie. You can choose from a list of alternate tunings or you can easily create your own.

You can set up a profile for your instrument in Roadie Tuner app and it will track its maintenance history. Thus, it will inform you of the quality of your strings and recommend restringing as soon as the tone quality deteriorates.

Roadie tuner team had just launched their second version of this amazing product, Roadie 2. The new about this tuner the fact that it is  fully standalone and uses vibration detection to tune in even the noisiest of environments. Thus, no need to be paired with a mobile app anymore to tune your instruments.

Below are Roadie 2 technical specifications:

  • Metallic gearbox: Built with a 380:1 gear ratio motor that insures Roadie 2 will turn those rusty pegs for you. The motor can turn in micro-movements to achieve unparalleled precision.
  • Battery:Powered by a rechargeable Lithium Ion battery (included). Lasts 1 month on a single charge. Includes a battery indicator to show you how much juice is left.
  • USB-C: With a charging cable included.
  • Built-in user interface: For easy selection of instruments and tunings.
  • Bluetooth 4.0 low energy
  • Haptic feedback: When a string is in tune, Roadie will give you a little shake to move on to the next string.
  • OLED screen Invisible when off, lights up beautifully as soon as you turn Roadie 2 on.
  • Knob interface: Intuitive and fast to scroll through your instruments and tunings.
  • Weight: Product weight: 3.2 ounces. Shipping weight: 9.9 ounces.
  • Product dimensions: 3.4 x 3.0 x 1.0 inches.
  • Material / Color:Plastic / Black.

“I think the concept is fantastic and I would be thrilled to have one of these because I actually play twelve string guitars. You don’t know how bloody difficult it is to keep a twelve string in tune” – Spike Edney, Queen

More details about extra features within the Roadie Tuner app, the product versions and more are available at the Kickstarter campaign the team had launched 2 days ago. Within only 3 hours, the campaign had achieved its goal and it is already 300% funded. Early bird offers still has 8 hours to go, you can pre-order your own Roadie for $79! Also check out the official website for more information.