On macOS, arm64, and universal binaries

January 5, 2021January 5, 2021 Chris Cannam

A handful of notes I made while building and packaging the new Intel/ARM universal binary of Rubber Band Audio for Mac. I might add to this if other things come up. See also my earlier notes about notarization. Context I'm using an ARM Mac – M1 or Apple Silicon – with macOS 11 "Big Sur",… Continue reading On macOS, arm64, and universal binaries

Code · Mighty Convolvuli · Security And That · Work

On macOS “notarization”

February 12, 2020February 17, 2020 Chris Cannam

I've spent altogether too long, at various moments in the past year or so, trying to understand the code-signing, runtime entitlements, and "notarization" requirements that are now involved when packaging software for Apple macOS 10.15 Catalina. (I put notarization in quotes because it doesn't carry the word's general meaning; it appears to be an Apple… Continue reading On macOS “notarization”

Code · Mighty Convolvuli · Work

What does a convolutional neural net actually do when you run it?

April 18, 2018April 20, 2018 Chris Cannam

Convolutional neural networks (or convnets or CNNs) are a staple of "deep learning". There are many tutorials available that describe what they do, either mathematically or via quasi-mystical appeals to intuition, and introduce how to train and use them, often with image classification examples. This post has a narrower focus. As a programmer, I am… Continue reading What does a convolutional neural net actually do when you run it?