Dev tools · alternatives · 2026
24 alternatives to Koelsynth – a simple FM synthesis library
This is part of my journey on pybind11. I wrote a tiny FM Synthesis library in C++ and a Python wrapper for that using pybind11. There is a command-line piano app in the examples directory if you want to play with it. Here is the link: https://github.com/charstorm/koelsynth/tree/main/examples/si... My next target is to attach this to some kind of physics simulation - like a bunch of balls moving around in a box with some internal walls. When the ball hits certain trigger points, it produces the sound.
Koelsynth is a lightweight FM synthesis library written in C++ with a Python wrapper built using pybind11. It includes a command-line piano application for experimentation. The library enables sound generation through… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Koelsynth – a simple FM synthesis library launched in 2023; newer entries below may have overtaken it.
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I built a synthesizer based on 3D physicsfree tier, from $99/mo▲512I've been working on the Anukari 3D Physics Synthesizer for a little over two years now. It's one of the earliest virtual instruments to rely on the GPU for audio processing, which has been incredibly challenging and fun. In the end, predictably, the GUI for manipulating the 3D system actually ended up being a lot more work than the physics simulation. So far I am only selling it direct on my website, which seems to be working well. I hope to turn it into a sustainable business, and ideally I'd have enough revenue to hire folks to help with it. So far it's been 99% a solo project, with…
2025 · anukari.com · its alternatives →
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Tones is a simple, open, collaborative music-making platform. All tones are created using the built-in synthesizer.
2018 · tones.fm · its alternatives →
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I built k-synth as an experiment to see if a minimalist, K-inspired array language could make sketching waveforms faster and more intuitive than traditional code. I’ve put together a web-based toolkit so you can try the syntax directly in the browser without having to touch a compiler: Live Toolkit: https://octetta.github.io/k-synth/ If you visit the page, here is a quick path to an audio payoff: - Click "patches" and choose dm-bell.ks. - Click "run"—the notebook area will update. Click the waveform to hear the result. - Click the "->0" button below the waveform to copy…
Mar 2026 · octetta.github.io · its alternatives →
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If you already know what bytebeat is, you don't need an explanation. If not, check my project :) Here is how it looks: SELECT mono(output( arraySum(x -> 1 / 6 * running_envelope(30 * (1 + x / 6), time, 0.05 * x, 0.005, lfo(0, 0.25, sine_wave, time / 8), 0.1) * sine_wave(time * 80 * exp2(x / 3)), range(12)))) FROM table; To check how it sounds, find the examples in the repository https://github.com/ClickHouse/NoiSQL
2023 · github.com · its alternatives →
- 5WA
Hi, I'm the author of this little Web Audio toy which does physical modeling synthesis using a simple spring-mass system. My current area of research is in sparse, event-based encodings of musical audio (https://blog.cochlea.xyz/sparse-interpretable-audio-codec-pa...). I'm very interested in decomposing audio signals into a description of the "system" (e.g., room, instrument, vocal tract, etc.) and a sparse "control signal" which describes how and when energy is injected into that system. This toy was a great way to start learning about physical modeling synthesis, which seems…
2025 · blog.cochlea.xyz · its alternatives →
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Keyboard-controlled music sequencer, sampler, and synth - kofigumbs/typebeat
2022 · github.com · its alternatives →
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Western music theory library in C. Contribute to thelowsunoverthemoon/mahler.c development by creating an account on GitHub.
Feb 2026 · github.com · its alternatives →
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Body: I built a polyphonic synthesizer in Python with a tkinter GUI styled after the Moog Subsequent 37. Features: 3 oscillators, Moog ladder filter (24dB/oct), dual ADSR envelopes, LFO, glide, noise generator, 4 multitimbral channels, 19 presets, rotary knob GUI, virtual keyboard with mouse + QWERTY input, and MIDI support. No external GUI frameworks — just tkinter, numpy, and sounddevice.
Feb 2026 · github.com · its alternatives →
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A powerful realtime node-based audio synthesizer. Contribute to monadgroup/axiom development by creating an account on GitHub.
2018 · github.com · its alternatives →
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In 2020, Magenta released DDSP [1], a machine learning algorithm / python library which made it possible to generate good sounding instrument synthesizers from about 6-10 minutes of data. While working with DDSP for a project, we realised how it was actually quite hard to find 6-10 minute of clean recordings of monophonic instruments. In this project, we have combined the DDSP architecture with a domain adaptation technique from speech synthesis [2]. This domain adaptation technique works by pre-training our model on many different recordings from the Solos dataset [3] first and then…
2022 · erlj.notion.site · its alternatives →
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Generate custom metal music tracks with DJEN, the powerful online music generator. Choose from a wide range of customization options to create the perfect sound, then save and share your tracks with the DJEN community.
2016 · djen.co · its alternatives →
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CLAVIER-36 is a programming environment for generative music. Programs are laid out in a two-dimensional grid, and evolve over time according to a fixed set of rules. The system is much like a cellular automaton, in that most of the rules governing the evolution of the system are local. C36 programs describe sequences of discrete events in time. The environment includes a primitive sampler, as a self-contained means of interpreting these events as sound. For full expressivity, though, the system is best used as a generator of data for interpretation by an external musical instrument, such as…
2025 · clavier36.com · its alternatives →
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Friendly articles and tutorials for front-end web developers. ❤️
2019 · joshwcomeau.com · its alternatives →
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SlideSynth▲49— Move touch up and down to change frequency, move touch left and right to change volume. — Tap the logo to loop, tap again to stop looping, tap yet again to cancel the loop. — Tap the waveform icons to change the waveform.
2024 · slidesynth.com · its alternatives →
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AudioCipher▲90Creative melody generator VST for music producers
2021 · audiocipher.com · its alternatives →
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Stable Audio 2.0▲156One shot sample generation for the SignalsAndSorcery.com platform - shiehn/sas-sample-generator
2024 · stability.ai · its alternatives →
- 17
A synth piano synth that generates all of its audio files dynamically using JavaScript and data URIs. Choose from a variety of sounds styles and play with the looper, visual waveforms, and more.
2012 · mrcoles.com · its alternatives →
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Hello HN! This is a Python app I've built for fun, while learning the Textual library, it's a piano/synthesizer app that you can play with the keyboard + mouse. You can see a demo video of it here: https://www.youtube.com/watch?v=0VXit110PcA You need to install FluidSynth before using it: https://www.fluidsynth.org/ It uses the Python bindings pyFluidSynth library: https://github.com/nwhitehead/pyfluidsynth And the General User GS soundfont: http://www.schristiancollins.com/generaluser.php If you try it out, i'd love to…
2023 · github.com · its alternatives →
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GPU powered models to convert any song to piano
Aug 2026 · pianoify.net · its alternatives →
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C Pixels-based graphical audio synthesizer implemented as a WebSocket server - grz0zrg/fas
2020 · github.com · its alternatives →
- 23TZ
2018 · zynaddsubfx.sf.net · its alternatives →
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Ever since childhood I've wanted to play around with modular synthesis, so now I'm building an application to do just that!
2023 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →