background image


Two dots moving

January 22, 2024


Two Dots Moving from Trond Lossius on Vimeo.

After three days of intensive coding, two dots are moving…

Please listen using headphones.

AntiRSI recompiled

December 30, 2023

AntiRSI is a handy little macOS app that encourages shorter and longer breaks while at the computer to avoid muscle strain and tension. I first downloaded it over a decade ago and have always copied it when migrating to new laptops. With the latest migration to a computer running Sonoma on an M2 processor, it stopped working.

It appears that the original developer no longer maintains it, but I found a more recent fork on GitHub. I checked out and compiled it, and it instantly works. Nice!

Multchannel Reverb

December 28, 2023

After several days of tweeking, I have managed to make a fully functional multichannel reverb VST plugin. The plugin is developed in Juce and make use of frameworks from the IEM Ambisonic plugin suite. The reverb algorithm itself is the open-source freeverb implemented using Faust on a per-channel basis, with no reverb diffusing or leaking between channels.

More than anything else, this is a working proof-of-concept of how Faust can be used to develop VST plugins processing multichannel and ambisonic signals.

Reverbs in Faust

December 18, 2023

Over the past few days I have been looking into Faust, a functional programming language for sound synthesis and audio processing created at the GRAME-CNCM Research Department.

Specifically, I am checking out the various built-in reverb modules. They are straight forward to compile as JSFX plugins for Reaper, allowing rapid prototyping. It also seems doable to compile into VST plugins using JUCE.

Looking at the source code for the reverb modules, they appear themselves to be programmed in Faust. As such they should be quite hackable.

Multichannel DeGrader VST plugin

August 4, 2023

DeGrader Demo from Trond Lossius on Vimeo.


The DeGrader VST plug-in is now fully functional, with similar behaviour to the C’74 Max object degrade~ Based on code base for the IEM Ambisonics Plug-in Suite, it can process from two to sixty-four audio channels. The DSP signal processing algorithm is a port from Jamoma DSP code, and hence proof of concept for porting and implementing further DSP algorithms from Jamoma to VST.

In the process, I gradually learn more about C++ development, the IEM code base and the Juce framework.

Restoring video and audio documentation

August 1, 2023

When I ported this web site to Nanoc last year, video and audio documentation of past works, hosted at Vimeo and SoundCloud, got lost in the transition. Today I finally got around to restore them.

There is a series of works done in recent years that remains to be properly documented and added, one of them being this collaboraiton with Ingeborg Annie Lindahl at Surnalad billag in 2021:

Trond Lossius ยท The Transience of Time (soundtrack, 2021)

Compiling IEM plugins usinc Cmake

July 31, 2023

A note to myself after a way too long hiatus here at the blog:

Here is how to compile the IEM Ambisonics plugins using Cmake:

// Clone and set up repository with the JUCE submodule
git clone
cd IEMPluginSuite
git submodule init
git submodule update

// Set up build folder
mkdir build
cd build

// Set up Xcode project to build VST plugins only
cmake .. -GXcode -DIEM_BUILD_VST2=ON \

The Xcode project can be found in the build folder. Choose the ALL_BUILD scheme, and build. The VST plugins built will install to the ~/Library/Audio/Plugins/VST/IEM folder.

I have updated the code for a GainAdjust plugin I made a while back to boost signals from Zylia recordings, and I am currently working on some multi-channel DSP processors. Tye altered GUI works and compiles, but it remains to implement the DSP processing.

Dolby Atmos ABC

July 10, 2022

For long I have wanted to get aquinted with Dolby Atmos. Over the past week I have spent a few hours a day reading up, and I now have Reaper integrated with the Dolby Atmos Renderer. The two above screenshots are initial tests listening back to some 3rd order ambisonic field recordings, decoded for and played back using Dolby Atmos. A next step will be to render to ADM files that I can load on my iPhone in order to see how they sound with head tracing.

Whle figuring out how to work with Dolby Atmos in Reaper, I found quite a few useful tips on the YouTube Channel of Immersive Audio Mixer, so a shout-out and thanks for that!

Field recording at Ensjø

June 19, 2022

For the first time in quite a while, I have added a new field recording to the Suburb Sound site. Check it out here.

Moving to a new server

May 22, 2022

For the past fourteen years, this website has been running as a Ruby on Rails application at a Mac OSX Server hosted by BEK. For several years, BEK has warned me that the server will soon close down, but until now, I have never had the time to act on it, apart from backing up server content. It has made me hesitant to add new content to the website, with the result that there has been very little activity here in recent years.

I have ported the site from Ruby On Rails to Nanoc. Nanoc generates static web pages with security and speed benefits on the server-side. Creating new content is a little finicky, but it should still be OK. Hopefully, the transition will invite more activity here in the future.

For the time being, the website uses the same layout as when conceived initially back in 2003. However, I plan to update it later this year to make it responsive.

The above image has nothing to do with anything; it is just a sample image that, at some point, came bundled with OSX. I included it here to test that I have gotten the CSS right for images in new blog posts.

For older blog posts, please refer to the monthly archives.