Squeeze C++ JUCE and Bottle It Into Linux Embedded Devices and More - Stefano Zambon - ADC 2024
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Running JUCE applications on embedded Linux devices is not a new thing. The topic has been treated in previous ADCs and, most notably, at ADC 2016 Felipe Tonello introduced a repository for Yocto/OpenEmbedded to make the task easier.
However, several things have changed in the meantime both in JUCE and in the embedded Linux world. This talk will present a new integration between CMake-based JUCE projects and Yocto/Openembedded, targeting modern embedded Linux platforms using the Raspberry Pi as an example.
The focus will be on the entire embedded development workflow, showing how to build target filesystem that can be run on the devices, cross-compiling SDKs, and automated testing tools suitable for modern CI/CD integration.
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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
This talk will cover the new JUCE 8 Direct2D renderer. We'll discuss the history of JUCE rendering, dig into the black box of what Direct2D is and actually does, explore what the new renderer can do, and cover practical tips for writing high-performance graphics code with JUCE 8.
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I've been writing software since my dad bought me a Texas Instruments 99/4A when I was twelve. I taught myself assembly language and BASIC and haven't really stopped since!
I've been a JUCE enthusiast for about as long as JUCE has existed and have been a JUCE forum member since 2005.
I've worked for Echo Digital Audio since 1993. I've worked on a diverse array of hardware and software projects for pro audio, broadcast, and test and measurement both for Echo and for consulting clients, including guitar effects, music synthesis, acoustic measurement, audio plugins, loudness measurement, embedded DSP code, audio firmware, real-time networking, time synchronization,Windows audio device drivers, Windows networking drivers, macOS audio device drivers, and a bunch of other projects I've probably forgotten about.
Recently I worked with the JUCE team to add Direct2D rendering to JUCE 8.
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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
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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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
A Critique of Audio Plug-In Formats - VST, AU, AAX, JUCE and Beyond - Fabian Renn-Giles - ADC 2024
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Audio plug-in formats such as VST, AU, and AAX have revolutionized the audio workflow, empowering a whole industry of creative coders. However, as programming paradigms and user expectations evolve, the design decisions of these established formats must be re-evaluated. This talk critically examines these design choices, exploring how they can be improved, and there is a new contender: CLAP.
The presentation is divided into two sections: a developer-focused critique and a customer-centric analysis. The developer-focused section delves into fundamental design flaws in plug-in APIs, such as stateful lifecycle management, poor single-use interface design, and why the overarching synchronous “process block” design may become quickly outdated with ever-increasing specialized hardware. The talk also discusses more audio plug-in specific issues like ambiguous parameter/state ownership, the limited utility of the “maxSamplesPerBlock” parameter, and what we can learn from Linux about negotiating bus formats.
The second section critiques audio plug-ins from the user’s standpoint. The talk explores major pain points such as lack of portability, cumbersome copy-protection mechanisms, and the archaic practice of plug-in scanning. The section concludes with a call-to-action for the industry to adopt unified standards as the only real solution to these problems.
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Fabian is a freelance C++ programmer, entrepreneur and consultant in the audio software industry. Before this, he was staff engineer at ROLI Ltd. and the lead maintainer/developer of the JUCE C++ framework (www.juce.com) - an audio framework used by thousands of commercial audio software companies. Before joining ROLI, he completed his PhD at Imperial College London, developing a numerical quantum optics solver with modern digital signal processing techniques and C++/MPI/OpenCL. Fabian is now a regular consultant specializing on low-level real-time C++, embedded audio, time sensitive networks, audio over WiFi and audio plug-in formats. His clients range from early startups to FAANG companies. Additionally, he is a regular speaker at the audio developer conference ADC and other C++ conferences.
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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
Join Us For ADC24 - Bristol - 11-13 November 2024
More Info: https://audio.dev/
@audiodevcon
Building an accessible JUCE app - Harry Morley - ADC 2023
During this talk we will investigate what goes into making a JUCE app accessible. We'll go over component grouping and hierarchies, keyboard focus, tips for testing accessibility and more, using real-world case studies and concrete examples.
The session will primarily be about screen reader accessibility, since you may be new to using the parts of JUCE that deal with accessibility.
The talk is designed for people who may not know where to begin when building an accessible app with JUCE, or simply for those who would like to hear some perspectives regarding creating accessible audio apps.
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Harry Morley
Harry has been a software developer at Focusrite for 4 years. He mainly works on C++ software that interacts with audio hardware, such as the Vocaster and Scarlett interfaces. Harry loves talking all things music, creativity and accessibility. Before Focusrite, Harry studied MA Computational Arts at Goldsmiths, and BMus Creative Music Technology at Surrey. He is a multi-instrumentalist who plays in a variety of genres and bands.
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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
Vars, Values and ValueTrees: State Management in JUCE - Jelle Bakker - ADC 2023
Managing various types of state, including global settings, presets, UI state, and application state, is crucial for building robust software. But, it comes with a challenge. State must be synchronized throughout the app. State must be stored and restored. And state is everywhere. There seems to be a lot of debate about what the best way is to solve these problems. The concept of centering your app around a model, a single point of truth, has long been recognized as a powerful pattern, often referred to in the context of MVC (Model-View-Controller). Adopting this approach will make extending and maintaining your software simpler. In JUCE you will find many classes designed for dealing with state, such as the AudioProcessorValueTreeState, ApplicationProperties, Value and Vars. This talk will serve as a guide and overview for how to manage data in JUCE applications.
Link to Slides: https://data.audio.dev/talks/2023/vars-values-and-value-trees/slides.pdf
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Jelle Bakker
Jelle Bakker is a JUCE developer, building audio-plugins and desktop applications. Jelle has worked as a contract software engineer for different companies across the globe. He specializes in software design and architecture. Besides that, Jelle is a father, coffee lover, and music performer, playing piano, electric guitar and cello.
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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
Join Us For ADC24 - Bristol - 11-13 November 2024
More Info: https://audio.dev/
@audiodevcon
Virtual Studio Production Tools With AI Driven Personalized Spatial Audio for Immersive Mixing - Dr. Kaushik Sunder & Krishnan Subramanian - ADCx India 2024
In recent years, Spatial audio formats such as Dolby Atmos, Sony 360 Reality, Auro 3D are on the rise. As a result of this, there is also an increasing need for having multi channel speaker setups and associated gear in the studio to produce, mix, and master music in such formats. These systems are extremely expensive, occupy space, time consuming to set up, and therefore a massive barrier to entry for most mixing engineers. In this talk, we will present some of the latest innovations in enabling an ecosystem of Virtual Studio Production with AI driven personalized spatial audio. We explore the need and integration of personalized HRTFs, Room acoustics modeling, and personalized headphone equalization for such virtual production tools. We will also present our experience leveraging JUCE for building spatial audio plugins, particularly as it pertains to virtualizing real world acoustic environments. By sharing our insights, this talk aims to provide valuable information to developers interested in building spatial audio plugins that bring down barriers of cost, accessibility, making “immersive for all” a reality for creative professionals.
Link to Slides: https://data.audio.dev/talks/ADCxIndia/2024/ai-driven-personalized-spatial-audio-for-immersive-mixing.pdf
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Edited by Digital Medium Ltd - 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
Prashant Mishra
Join Us For ADC23 - London - 13-15 November 2023
More Info: https://audio.dev/
@audiodevcon
Using Faust in JUCE Projects - Julius Smith - ADCx SF
Faust (Functional AUdio STream) is a domain-specific functional programming language for sound synthesis and audio processing (https://faustdoc.grame.fr). Faust development is routinely an order of magnitude faster to write and debug than C++, and the run-time performance is usually within a factor of two. Development is further facilitated by the large Faust Libraries collection of signal-processing functions (https://faustlibraries.grame.fr). Since Faust compiles to C++, it is natural to integrate C++ header files generated by the Faust compiler into a JUCE project or the like. A limitation encountered is that Faust's powerful pattern-matching facility requires its "macro arguments" to be bound at compile time, i.e., not signals or controller parameters. An example is the filter order in Faust's filter-design functions. When these arguments need to change at run time, it can make more sense to translate Faust to C++, so that the recursive pattern-matching in Faust is replaced by recursive C++ functions. Experience using ChatGPT-3.5 and ChatGPT-4 for this purpose and others will be summarized.
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Julius Smith
Professor Emeritus of Music and by courtesy Electrical Engineering, Stanford University, based at the Center for Computer Research in Music and Acoustics (CCRMA). Activities include teaching courses in signal processing and music technology, graduate student advising, and research in signal processing applied to music and audio. https://ccrma.stanford.edu/~jos/
Edited by Digital Medium Ltd - 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 ADC Team:
Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Join Us For ADC23 - London - 13-15 November 2023
More Info: https://audio.dev/
@audiodevcon
Massive leveraging of FlexBox using the JUCE C++ classes - Nick Porcaro ADCx SF
UI development using the JUCE classes wrapping FlexBox particularly via PluginGUIMagic has been used for rewriting a new portable version of a GeoShred, large popular iOS music app.
Several strategic modifications and optimizations were made to PluginGUImagic to make this happen. In this talk a demonstration of app will be given and how the layouts are made.
Nick is a software developer proficient in many languages including Objective-C, C++, PHP, Javascript, Python and Perl. He holds a B.S in electrical engineering from Texas A&M, and was a visiting scholar at the Center for Computer Research in Music and Acoustics (CCRMA), Stanford University. He was a founder of Staccato Systems, and worked for several other startup companies in a variety of fields – electronic design automation, geophysics, e-commerce, and digital audio. He has also done independent artistic work using 3D graphics with sound. In late 2011 he released an iPhone app called UndAground – New York, a cultural guide to New York City. He is also a jazz pianist.
Edited by Digital Medium Ltd - 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 ADC Team:
Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Join Us For ADC23 - London - 13-15 November 2023
More Info: https://audio.dev/
@audiodevcon
Leveraging JUCE for Developing Spatial Audio Plugins - Scott Murakami - ADCx SF
With the increased availability of immersive sound experiences through headphones and speakers, spatial audio has gained popularity in recent years. In this talk, we will present our experience utilizing JUCE for building spatial audio plugins, particularly as it pertains to virtualizing real world acoustic environments. We will discuss the benefits of using JUCE from both an engineering and team management perspective, providing practical tips and best practices for leveraging the framework to create immersive and realistic spatial audio experiences. By sharing our insights, this talk aims to provide valuable information for developers interested in building spatial audio plugins using JUCE, including both experienced and novice developers alike.
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Scott Murakami
I am passionate about audio in all its forms and approach it from different angles. I am both and engineer and an artist who has been focused on audio for many years from both perspectives, the technical and the artistic.
Currently, I work as a Software Developer for Embody making spatial audio tools for musicians, engineers, and the like. In my free time I enjoy tinkering with synthesizers and computers to create electronic music & sound art.
Edited by Digital Medium Ltd - 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 ADC Team:
Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
