Tag: cpp

Writing Correct C++ GUI Code: Bug-Free JUCE UI – Jan Wilczek – ADC 2024

https://audio.dev/ -- @audiodevcon​
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Writing Correct C++ GUI Code: Bug-Free JUCE UI - Jan Wilczek - ADC 2024
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Do you want to:

- Build large-scale and small-scale applications with graphical user interfaces for clients?
- Confidently design your app’s UI architecture using a structured approach?
- Ensure your app is bug-free also in the UI code without laborous manual testing?

How many times have you opened your JUCE GUI app only to find something isn’t working?

How many times have you ended up with too much logic in your Component classes?

And how many times were you scared to start a new project because of the perceived size of the app and lack of confidence in how to design it or start coding?

Graphical user interfaces often suffer from testability problems and thus require a lot of manual testing. How can we overcome this issue? One approach is automated testing with sophisticated GUI analysis tools. However, an easier solution has largely been ignored by JUCE developers: the Model-View-ViewModel (MVVM) pattern, which has been successful in frameworks like Windows Presentation Foundation (WPF) and Android development.

What will you learn from this talk?
- The differences between modern GUI architectures (MVC, MVP, MVVM).
- How to design your GUI app architecture for scalability and maintainability.
- How to reduce development time, costs, and stress by leveraging the power of the MVVM pattern in JUCE apps for clean and testable GUIs.
- How to effortlessly test your GUIs in an automated way without even launching your app.
- How to handle multithreading issues when interacting with GUI code.

Who is this talk for?
- Mostly mid and senior JUCE developers.
- Junior developers can benefit from learning about the scope of the problem and possible solutions.

The talk draws heavily on JUCE concepts, so it may be somewhat challenging for those completely new to the JUCE C++ framework.

The talk will include real-world examples, a step-by-step guide, and additional helpful references for future self-study.
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Slides: https://data.audio.dev/talks/2024/bug-free-juce-ui/slides.pdf
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Jan Wilczek

I am an audio programming consultant and educator, the creator of TheWolfSound.com blog and YouTube channel dedicated to audio programming.

In 2023, I launched "DSP Pro," an online course on digital audio signal processing tailored for complete beginners. DSP forms the backbone of audio processing, crucial for applications such as DAW plugins.

I offer one-on-one coaching for ambitious students and aspiring audio programmers, providing personalised guidance to help them excel.

Beyond teaching, I work as a consultant and freelancer in audio programming. My main interests include C++, software architecture, and mobile development, especially as they relate to audio.

Since 2024, I have been in charge of JUCE's YouTube channel development.

I have published research on Virtual Analog modeling of distortion circuits using deep learning techniques.

Regarding my academic background, I graduated with honors from Friedrich-Alexander-Universität Erlangen-Nürnberg, completing an elite master’s program in Advanced Signal Processing and Communications Engineering. I also hold a Bachelor of Engineering in Acoustic Engineering from the AGH University of Science and Technology in Kraków.

I work from home in Katowice, Poland.
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ADC is an annual event celebrating all audio development technologies, from music applications and game audio to audio processing and embedded systems. ADC’s mission is to help attendees acquire and develop new audio development skills, and build a network that will support their audio developer career.
Annual ADC Conference - https://audio.dev/
https://www.linkedin.com/company/audiodevcon
https://twitter.com/audiodevcon
https://facebook.com/audiodevcon
https://instagram.com/audiodevcon
https://www.reddit.com/r/audiodevcon/
https://mastodon.social/@audiodevcon
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Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
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Organized and produced by JUCE: https://juce.com/
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Special thanks to the ADC24 Team:

Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#adc #cpp #juce #audiodev #dsp #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #musictech #soundtech #audiotech #audiotechnology

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Can Audio Programming be Safe? – Dave Rowland – ADC 2024

https://audio.dev/ -- @audiodevcon​
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Can Audio Programming be Safe? - Dave Rowland - ADC 2024
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Safety is an increasingly discussed topic in relation to programming and often little or misunderstood. With organisations like the NSA and NIST recommending developers move away from memory unsafe languages (such as C and C++), there is a lot of uncertainty in the air about what this means for current programming practices. With a focus on the audio industry, are we even exposed to any of these risks?

In this talk we look at the different types of safety, including memory and functional safety, and how these relate to security. We see what risks we might be exposed to and the current strategies for mitigating them.

We then look into what possible alternatives to “memory unsafe languages” there are, why they are safer and if they are suitable for audio use. Should we all be migrating to Rust, Hylo, Swift or Cmajor? What can we learn from the approach these languages take?

Finally we look at existing tooling such as static analysers and sanitizers and see if these provide any safety nets for memory unsafe languages. What is the most pragmatic approach to audio development with one eye on the future landscape.
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Slides: https://data.audio.dev/talks/2024/can-audio-programming-be-safe/slides.pdf
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Dave Rowland

Dave Rowland is the CTO at Audio Squadron (owning brands such as Tracktion and Prism Sound), working primarily on the digital audio workstation Waveform, and the engine it runs on. David focuses on the architecture and real-time elements of the software.

In academia, David has taught on several modules at the University of the West of England on programming for audio. David has a passion for modern C++ standards and their use to improve code safety and brevity, has spoken at Meeting C++, C++ on Sea, C++ Online and is a regular speaker at the Audio Developer Conference and related monthly meetup. Past presentations: https://github.com/drowaudio/presentations/
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ADC is an annual event celebrating all audio development technologies, from music applications and game audio to audio processing and embedded systems. ADC’s mission is to help attendees acquire and develop new audio development skills, and build a network that will support their audio developer career.
Annual ADC Conference - https://audio.dev/
https://www.linkedin.com/company/audiodevcon

https://facebook.com/audiodevcon
https://instagram.com/audiodevcon
https://www.reddit.com/r/audiodevcon/
https://mastodon.social/@audiodevcon
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Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
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Organized and produced by JUCE: https://juce.com/
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Special thanks to the ADC24 Team:

Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#cpp #cppprogramming #adc #audiodev #cprogramming #audio #conferenceaudio #audioprocessing #audioprogramming #musictech #soundtech #audiotech #audiotechnology

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Automated Analog Circuit Modeling – C++, Python, MATLAB, and XML – Eric Tarr – ADCxGather 2024

https://audio.dev/ -- @audiodevcon​
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Automated Analog Circuit Modeling - C++, Python, MATLAB, and XML - Eric Tarr - ADCxGather 2024
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As a software developer, are you interested in creating audio tools involving analog circuit modeling? If so, the "Point To Point Library" from Hack Audio makes it easier than ever to prototype and create real-time signal processing algorithms for your software. The library comes with over 100 circuit examples for you to use, which can also be easily customized by modifying individual circuit components. Or, start from scratch and create your very own DSP models based on schematics using the library's automated circuit solver. Prototype your implementations in either Python or MATLAB to analyze common processing measurements. Then, create real-time C++ effects using example JUCE projects. Additionally, simple XML scripts can be loaded to test circuit implementations in the "Analog Circuit Factory" plug-in available for Mac and Windows in AAX, VST3, and AU formats.
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Eric Tarr

Eric Tarr is the owner of Hack Audio and an Associate Professor of Audio Engineering Technology at Belmont University.  He received a Ph.D., M.S., and B.S. from the Ohio State University in Electrical and Computer Engineering.  He received a B.A. in Mathematics with a minor in Music from Capital University. He is the author of a textbook published by the Audio Engineering Society and Focal Press titled, “Hack Audio: An Introduction to Computer Programming and Digital Signal Processing in MATLAB.”  His interests in audio engineering include acoustic and electronic system modeling, signal processing for auditory prostheses, and audio plug-in software development. He has created software for many companies including Apogee, Gibson/KRK Loudspeakers, Sennheiser, Empirical Labs, Skywalker Sound, L.R. Baggs, KIT Plugins, Mixwave, and Impact Soundworks. He has received research grants from the Tennessee Entertainment Commission, Epic Games, AFWERX , and was the recipient of the Gibson Foundation Les Paul Music Innovation Award. He has served as an Expert Litigation Consultant on lawsuits involving audio and software development.
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ADC is an annual event celebrating all audio development technologies, from music applications and game audio to audio processing and embedded systems. ADC’s mission is to help attendees acquire and develop new audio development skills, and build a network that will support their audio developer career.
Annual ADC Conference - https://audio.dev/
https://www.linkedin.com/company/audiodevcon
https://twitter.com/audiodevcon
https://facebook.com/audiodevcon
https://instagram.com/audiodevcon
https://www.reddit.com/r/audiodevcon/
https://mastodon.social/@audiodevcon
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Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
---

Organized and produced by JUCE: https://juce.com/
---

Special thanks to the ADCxGather Team:

Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#softwaredevelopment #digitalsound #adc #audiodev #dsp #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #musictech #soundtech #audiotech #audiotechnology

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Javascript, WebViews and C++ – “If You Can’t Beat Them, Join Them” – Julian Storer – ADC 2024

https://audio.dev/ -- @audiodevcon​
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Javascript, WebViews and C++ - “If You Can’t Beat Them, Join Them” - Julian Storer - ADC 2024
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This talk is an "everything you need to know" about the pros, cons, tricks, tips and gotchas of using a WebView and javascript in your native C++ app or plugin.

Over the last few years, more and more developers have been drawn to web-technology for their GUIs because HTML/CSS/JS is so ubiquitous, has great tools, a huge ecosystem, and is fast to iterate on. However, gaffer-taping a WebView onto some back-end code written in C++ can be complicated.

After 30 years of writing UIs (and UI frameworks) in C++, I've spent the last couple of years migrating to WebViews in several projects. This talk is a brain-dump of what you need to know about this from the perspective of an audio/realtime C++ developer.

I'll cover the essential best-practices of how to create and manage mixed C++/JS projects, lessons learned, gotchas, benchmarks, top tips, and all the pros and cons you might be wondering about if you're a "web-curious" C++ coder.
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Julian Storer

I'm the creator of JUCE, Tracktion, Cmajor and CHOC 🙂
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ADC is an annual event celebrating all audio development technologies, from music applications and game audio to audio processing and embedded systems. ADC’s mission is to help attendees acquire and develop new audio development skills, and build a network that will support their audio developer career.
Annual ADC Conference - https://audio.dev/
https://www.linkedin.com/company/audiodevcon

https://facebook.com/audiodevcon
https://instagram.com/audiodevcon
https://www.reddit.com/r/audiodevcon/
https://mastodon.social/@audiodevcon
---

Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
---

Organized and produced by JUCE: https://juce.com/
---

Special thanks to the ADC24 Team:

Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#adc #javascript #cpp #webview #audiodev #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #musictech #soundtech #audiotech #audiotechnology

Filed under: UncategorizedTagged with: , , , ,

A More Intuitive Approach to Optimising Audio DSP Code – Gustav Andersson – ADC23

https://audio.dev/ -- @audiodevcon​

A More Intuitive Approach to Optimising Audio DSP Code - Guiding the Compiler Through Optimising Your Code for You - Gustav Andersson - ADC 2023

As audio developers we all want our code to be blazingly fast, DSP code in particular. But when reading up on how to optimise audio DSP code, it is easy to get sucked into a world of counting divisions, vector instructions, compiler intrinsics and inline assembly, and think: this is impossible. These are techniques with a very steep learning curve and that require deep technical knowledge of how CPUs and compilers work. The resulting code is also often difficult to read, maintain, and possibly less flexible, as direct inline assembly or intrinsics are often tied to specific cpu architectures.

This talk will present a completely different approach to optimising, one that is more intuitive and accessible, and doesn’t trade speed for readability and maintainability of the code - Simply let your compiler do the hard work for you!

Compilers today are immensely good at optimising code. The difference between an optimised and un-optimised build of the same code can be an order of magnitude, if not more. Still there are things we as programmers can do when we write our code, that affects the level to which the compiler can optimise it.

In this talk we will talk about techniques compilers use to optimise code, and how to write code in a way that enables the compiler to optimise it as efficiently as possible. We will show useful patterns, and anti-patterns, that facilitate or hinder optimisation respectively. We will discuss how to benchmark and measure code and different kinds of bottlenecks, i.e. cpu/memory/pipeline bound code, and how to get the compiler to tell us when it is not able to optimise efficiently.

We will go through a few case studies comparing the performance and generated assembly code, before and after optimisation techniques have been employed. We will also take a look at how using functions from the c++ standard library compares to writing your own functions.

The main focus will be on optimising small, tight loops of audio DSP code that generally run directly from cache. The focus will not be on optimising higher level architecture, memory layout or cache-friendliness.

The talk will come with a companion repository posted on github.
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Gustav Andersson

Will code C++ and python for fun and profit. Developer, guitar player and electronic music producer with a deep fascination with everything that makes sounds in one form or another. Currently on my mind: modern C++ methods, DSP algos, vintage digital/analog hybrid synths.
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Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
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Organized and produced by JUCE: https://juce.com/
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Special thanks to the ADC23 Team:

Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra

#adc #audiodev #dsp #audio #cpp

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