Matthijs Hollemans Claim this profile

Source code for the book Code Your Own Synth Plug-Ins With C++ and JUCE

JUCE implementations of the classic MDA audio plug-ins

Source code for the book Core ML Survival Guide

Types and functions that make it a little easier to work with Core ML in Swift.

Everything we actually know about the Apple Neural Engine (ANE)

A neural network toolkit for Metal

Tiny YOLO for iOS implemented using CoreML but also using the new MPS graph API.

The MobileNet neural network using Apple's new CoreML framework

The BlazeFace face detector model implemented in PyTorch

A custom tab bar controller for iOS 5

Source code for my blog post "Getting started with TensorFlow on iOS"

UIControl for iOS that acts like a rotary knob

iPhone version of the VGGNet convolutional neural network for image recognition

Shows how to draw a 3D object without using shaders

Reliability diagrams visualize whether a classifier model needs calibration

DSP Magnetic Tape Emulation

This project is now deprecated.

Sample-based audio player for iOS that uses OpenAL.

A UIScrollView subclass that shows previews of the pages on the left and right.

Collection of notes on how to use Apple’s Metal API for compute tasks

Source code for my blog post series "On-device training with Core ML"

Running Inception-v3 on Core ML

A fast matrix type for Swift

Class for doing simple iOS sound synthesis using Audio Queues.

This code is now deprecated.

Source code for the blog post "Custom Layers in Core ML"

The classic s(M)exoscope oscilloscope VST using modern JUCE

Python script to examine Core ML's mlmodel files

Compares the speed of Apple's two deep learning frameworks: BNNS and Metal Performance Shaders

Allows you to combine a JPEG with a second image to give it transparency.

The TinyML "Hello World" sine wave model on Arduino Uno v3

Code snippets of sound synthesis algorithms in C++

Lowpass filter + saturation audio effect plug-in

Color theme for Xcode 8 based on the colors from the WWDC 2016 slides

Using a recurrent neural network to teach the iPhone to play drums

A simple LISP interpreter written in Swift

Example code for my blog post FFT Processing in JUCE

Drawing semantic segmentation masks with Metal

VST that combines the classic mdaPiano and EPiano in a new plug-in

Category on UIViewController that makes it easy to present modal view controllers that only partially cover the screen.

Playing with the Metal Performance Shaders matrix multiplication kernel

Live visualization of convolutional neural network using the iPhone's camera

A simple class for managing the lifecycle of your UIPopoverControllers

The SEFR classifier implemented in Swift

Simple bass synth VSTi based on window function synthesis

Library for making railroad diagrams in Swift

Basic digital level meter plug-in.

Shows how to use AVAudioPlayer to play a buffer of waveform data that you give it.

My January 2013 game for #OneGameADay (iPhone). The galaxy is falling apart and it's your job to move all the planets back to where they belong. Lots of swiping involved.

JUCE versions of selected Airwindows plug-ins

Tool that quickly lets you pick tint colors for navigation bars etc.

A simple Objective-C wrapper around the sqlite3 functions.

A basic example of how to implement logistic regression in Swift

PyTorch helper code

Simple tool for shrinking images 50% by averaging the color (and alpha) of each 2x2 pixel block.

Simple bass/mids/treble equalizer plugin written in JUCE

handy utility for monitoring levels and protecting ears while developing plug-ins

My curated list of audio DSP and plugin development resources

Various resources related to developing plugins for audio production.

Everything must bounce!

Category on NSObject that lets you override methods on existing objects using blocks, without having to make a subclass.

A simple example of how to make a UIWindow that appears on top of everything else, including the status bar.

A port of the juce AudioFilePlayerDemo into plug-in format

the iOS Dev Directory

Source code for my RWDevCon talk on app architecture.

Category that allows you to write, for example, [UIColor xFF3399] to make a new UIColor object with values #FF3399.

No description.

An open-source vibrato plugin with an extensive modulation system.

Unified-Modal Speech-Text Pre-Training for Spoken Language Processing

Source code for my RWDevCon talk on Swift closures and generics.

🤗 Transformers: State-of-the-art Machine Learning for Pytorch, TensorFlow, and JAX.

Core ML Community Tools.

An Open Source Machine Learning Framework for Everyone

No description.

PyTorch image models, scripts, pretrained weights -- (SE)ResNet/ResNeXT, DPN, EfficientNet, MixNet, MobileNet-V3/V2, MNASNet, Single-Path NAS, FBNet, and more

Cross platform plugin testing and validation tool

No description.

A VSTi that transforms input MIDI to polyphonic xenharmonic MPE MIDI.

Deep Learning library for Python. Runs on TensorFlow, Theano, or CNTK.

Repository for CocoaHeadsNL app.

Materials for my RWDevCon inspiration talk

No description.