SOUL Wants to Process Your Audio

Abstraction is the core of nearly all progress in computing. Unless you are fabricating your own semiconductors and drawing wire, we all create with building blocks ranging from components like CPUs, to operating system functions, to specialized libraries. Just as …read more

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DSP Spreadsheet: The Goertzel Algorithm is Fourier’s Simpler Cousin

You probably have at least a nodding familiarity with the Fourier transform, a mathematical process for transforming a time-domain signal into a frequency domain signal. In particular, for computers, we don’t really have a nice equation so we use the discrete version of the transform which takes a series of …read more

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Learning SDR and DSP Hack Chat

Join us on Wednesday, November 11th at noon Pacific for Learning SDR and DSP Hack Chat with Marc Lichtman!

“Revolution” is a term thrown about with a lot less care than it probably should be, especially in fields like electronics. It’s understandable, though — the changes to society that have …read more

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Hackaday Links: October 11, 2020

If you’re interested in SDR and digital signal processing but don’t know where to start, you’re in luck. Ben Hillburn, president of the GNU Radio Project, recently tweeted about an online curriculum for learning SDR and DSP using Python. The course was developed by Dr. Mark Lichtman, who was a …read more

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Intuition about Signals and Systems

Signals and systems theory is a tough topic. Terms like convolution and impulse response can be hard to understand on a visceral level and most books that talk about these things emphasize math over intuition. [Discretised] has a YouTube channel that already has several videos that promise to tackle these …read more

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Most Android Phones Can Be Pwned Just by Watching a Video

More than 400 bugs in Qualcomm Snapdragon chips mean the Android phone in your pocket could be tremendously vulnerable.
The post Most Android Phones Can Be Pwned Just by Watching a Video appeared first on Security Boulevard.
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Qualcomm Bugs Open 40 Percent of Android Handsets to Attack

Researchers identified serious flaws in Qualcomm’s Snapdragon SoC and the Hexagon architecture that impacts nearly half of Android handsets. Continue reading Qualcomm Bugs Open 40 Percent of Android Handsets to Attack

A Mini SDR Receiver Using An Audio DSP

Software defined radio or SDR is the most exciting frontier in the field of radio, transferring as it does all signal functions from the analogue to the digital domain. Radios using SDR techniques can be surprisingly straightforward and easy to understand, and [Ray Ring]’s little SDR receiver manages to combine …read more

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