Github Archives

OpenRefMic is a cheap open source low-noise reference microphone you can build yourself for under $40

Jul 4, 2022 by John Aldred Leave a Comment

Reference mics can be a vital tool when it comes to audio. They’re the microphones that capture the uncoloured sound, with a flat response and almost complete transparency to let you measure the acoustic characteristics of the room in which you’re recording. They let you test rooms for echo and reverberation. They let you hear (and see, on charts) what frequencies your room naturally enhances or destroys.

Reference mics can be quite expensive, though, so GitHub user loudifier decided to design his own and make it open source. It’s called OpenRefMic and it promises a low cost with a high performance that “meets or exceeds the performance of professional reference microphones”. And while commercially available reference microphones aren’t all expensive, they usually come with pretty high self-noise levels. And none are this cheap!

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Chinese developer arrested after compromising every single drone by ‘accidentally’ posting DJI’s private keys on Github

Apr 30, 2019 by Dunja Djudjic 7 Comments

A Chinese developer has exposed DJI’s AES private keys by posting them onto Github in plain text. By doing this, he made it easy to decrypt DJI’s encrypted flight control firmware. So, when it was discovered, it sent the man to jail and he’ll have to pay a fine of nearly $30,000.

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This software makes it easier than ever to colorize black and white images

May 19, 2017 by Dunja Djudjic 5 Comments

Colorizing a black and white image in Photoshop requires a huge amount of time, and not to mention that you need exceptional skill to do it. A year ago, Richard Zhang and a team at University of California revealed Algoritmia, an app that does it automatically. It was fun to play with it, but there was still plenty of room for improvement. Now, a year later, they have found a new approach. And this time, the results are way more impressive.

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Facebook releases image identification software to the public

Aug 29, 2016 by John Aldred 1 Comment

Facebook has announced that it is releasing three of its main image identification algorithms to the public. It’s not the first time Facebook has opened its research to the public, and it likely won’t be the last. In this particular instance, Facebook say that they hope the work will “rapidly advance the field of machine vision”.

Such technology has already come a long way in just the last few years. It’s a bit like what you see on Google when you search by uploading a image. It makes an attempt to identify the person, place, or object in the image, and offer similar or related results. It’s also similar to the technology coming in the iOS 10 update to automatically categorise your photos.

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