Show HN: I made an additive synth with 10k oscillators

19 hours ago 1

is an additive synthesizer

sine machine is an instrument that you play in your DAW.

it looks like this:

Product screenshot

It runs on macOS and Windows.
It’s a VST3, AU and CLAP instrument.
You can also run it as a Standalone app.

Buy “Early Access”

It’s October 2025 and Sine Machine just had a private beta. Bugs were fixed. Features were added. Now I want to quietly (shhh!!) let a few more people play with it while I polish things up, wrap up the manual, fix obscure DAW bugs, etc.

  • MacOS AU, VST3, CLAP, Standalone (Apple Silicon and Intel)
  • Up to 3 installs per license (online activation required)
  • Windows VST3, CLAP, Standalone (Windows 8.1 and later)
  • Updates included

Sine Machine “Early Access”

$50 USD

Buy Now

I don’t do discounts or bLaCk fRiDaY dEaLZ!!

Note that the price might go up after “early access,” (everyone keeps telling me to charge more)

Frequently asked questions

Have a different question? Hit me up at [email protected]

What are the minimum requirements Windows: Windows 8.1 and later
MacOS: Apple Silicon recommended.
Intel Macs are supported (macOS 11 and later), I’ll be improving performance during early access.

What formats does Sine Machine come in? VST3, AU and CLAP on macOS.
VST3 and CLAP on Windows.
Standalone on both.

No AAX? Not at the moment. We recommend using Modalics’ amazing (and free!) PluginBuddy wrapper for people using Protools.

Is Sine Machine CPU hungry? It can be heavy on older machines, especially low notes with unison voices and all the bells and whistles. Otherwise it’s pretty chill.

Do you offer offline license authorization? Not at the moment, you’ll need to be online to authorize the purchase on your computer.

added the ability to map partials to arbitrary frequencies. instead of 500 harmonics, this is 500 sine waves tuned to the same pitch, spread apart a bit, going through various per-harmonic pitch and volume modulation pic.twitter.com/VJSuWnj6bx

— sudara (@sudara) August 20, 2025

last feature before private beta…

— sudara (@sudara) February 24, 2025

ok here we go, bending harmonics from a normal sawtooth to the set of fundamental frequencies contained in a 12tet minor 6/9 chord pic.twitter.com/D213OyE9Vi

— sudara (@sudara) February 27, 2023
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