About Throughline
What is Throughline?
Throughline is a modular audio plugin for building instruments, effects and MIDI processors.
Who is Throughline for?
Musicians, producers, sound designers, educators and the generally curious.
Do I need experience with modular synthesis to use it?
No. Play around. Break things. That is the best way to learn.
Is Throughline still in beta?
Yes. Throughline is currently in private beta on Mac. Mac and Windows are planned for the first public release. Sequencing and MIDI workflow improvements lead current development. A standalone app and Linux support are in development. Scope and timing may change as development and testing progress.
Compatibility and installation
Is Throughline a standalone app or a DAW plugin?
The current private beta runs as a DAW plugin. A standalone app is in development, with sequencing and MIDI workflow improvements taking priority.
Which operating systems does Throughline support?
The current private beta requires macOS 13 or later and supports Apple Silicon and Intel Macs. Mac and Windows are planned for the first public release. Linux support is in development. Windows installation requirements will accompany the release.
Which plugin formats are available?
Audio Unit and VST3 on macOS.
Which DAWs are officially supported?
Logic Pro, Ableton Live, and Reaper are the initial compatibility targets. Throughline may work in other AU or VST3 hosts, but those hosts are not yet part of the formal compatibility pass. If you run into a problem, please get in touch.
What is the difference between Throughline, Throughline FX, and Throughline MIDI?
Throughline is the synth instrument: it receives MIDI and produces audio. Throughline FX processes incoming audio. Throughline MIDI receives, transforms, and sends MIDI without acting as an audio instrument. Use the variant that matches the track and routing job.
Can I use Throughline without an internet connection?
Yes. Installation and normal plugin use do not require a continuous internet connection. You need internet access for the initial download and for website services such as purchases, refunds, release downloads, and support.
Is an account required to use or activate Throughline?
There is no licence key or online activation inside the plugin. A website account is required to buy Throughline and manage downloads, refunds, and support. I hate intrusive activation systems as much as you do.
How many computers can I install Throughline on?
As many as you personally need. The licence is for you, not your computer. I am not checking. You bought it. Do what you want.
Patching and workflow
Can I build both monophonic and polyphonic instruments?
Yes. Build a monophonic voice directly on the canvas, or place one voice inside a Polyphony Zone. Throughline runs that voice separately for each held note. Polyphony Zones currently support 1–16 voices.
Can Throughline process external audio?
Yes. Load Throughline FX, connect an Audio Input node to an Audio Output node, and put some other nodes in between.
Can Throughline generate or process MIDI?
Yes. Load Throughline MIDI, connect a MIDI Input node to a MIDI Output node, and put some other nodes in between.
Can patches sync to my DAW’s tempo and transport?
Yes. Choose Host timing in the header. Clock-aware nodes follow the Global Clock automatically; use Sync mode for timing controls that offer it. Connect a separate Clock to override a node’s timing source. See Sync to tempo.
Are presets, templates, or example patches included?
Yes. Throughline includes starter and example patches, with a focused V1 factory set being expanded as its workflows pass release testing.
Can I save patches separately from my DAW project?
Yes. Your DAW saves the current patch with the project, and you can also export it as a separate
.tlpatch file for backup or later use.Can I share patches with other Throughline users?
Yes. Send them the exported
.tlpatch file and they can import it into Throughline. They need a version that supports the nodes and features used by the patch.Will patches remain compatible with future updates?
Patch compatibility is a release requirement. Throughline versions its patch format and automatically migrates supported older patches when necessary. Compatibility is tested during the release process. Older versions of Throughline may not open patches saved by newer versions.
Performance and reliability
How demanding is Throughline on the CPU?
CPU use depends on the patch. More nodes, effects, active voices, and higher sample rates require more processing. Throughline’s audio engine is designed for bounded real-time processing and tested against native performance benchmarks. The exact load depends on your computer, DAW, and audio settings.
Does Throughline introduce latency?
Throughline does not apply a fixed global latency and currently reports zero samples of latency to the DAW. Some nodes deliberately delay the signal as part of their sound—for example, Delay and Granular Delay. Your audio interface and DAW buffer settings also affect monitoring latency.
What limitations or known issues should I expect?
- Formal compatibility currently centres on AU and VST3 in Logic Pro, Ableton Live, and Reaper.
- Step Sequencer and Euclidean Sequencer are available. Audio clips and MIDI clips are disabled.
- Groups, visual Frames, and saved user Groups in the Local Library are available. Mono Synth, Bass Synth, Pad, Kick and Snare are available as editable Groups. Built-in Effect templates are not offered for new patches.
- Polyphony Zones support 1–16 voices, cannot be nested, and offer Oldest, Quietest, or Highest voice stealing.
- Sampling, granular instruments, MPE, community patch sharing, and additional formats remain roadmap work. Granular Delay, which transforms incoming audio, is available.
Is Throughline suitable for live performance?
It depends on your hardware and the complexity of your patches. Test the exact set before taking it on stage. Throughline’s Macros provide a compact set of host-automatable controls that you can connect to hardware through your DAW’s mapping tools.
Support and roadmap
Where can I find documentation and tutorials?
Where can I follow development?
Follow the public roadmap. Now shows available beta features, Next shows work in development, and Later shows directions under investigation and planned for future releases. Scope and timing remain open.