Life & fun · alternatives · 2026
24 alternatives to KFR 7 – major update for C++ DSP library
Key additions: RVV SIMD support for RISC-V devices. Elliptic IIR filter design and zero-phase IIR filtering via filtfilt. Audio reading/writing completely reworked and now supports WAV, W64, RF64/BW64, AIFF, FLAC, CAF, ALAC, MP3, and raw formats. New high-level Audio module for multichannel processing. There are also performance improvements since KFR6 for DFT (up to 40% on ARM) and matrix transpose (up to 30%).
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1

Hi HN, OpenAI recently released a model for automatic speech recognition called Whisper [0]. I decided to reimplement the inference of the model from scratch using C/C++. To achieve this I implemented a minimalistic tensor library in C and ported the high-level architecture of the model in C++. The entire code is less than 8000 lines of code and is contained in just 2 source files without any third-party dependencies. The Github project is here: https://github.com/ggerganov/whisper.cpp With this implementation I can very easily build and run the model - “make…
2022 · github.com · its alternatives →
- 2

State-of-the-art (ranked #1 Aug 2022) German Speech Recognition in 284 lines of C++. This is a 100% private 100% offline 100% free CLI tool. - DeutscheKI/tevr-asr-tool
2022 · github.com · its alternatives →
- 3
MiMo-V2.5 Voice▲115Bilingual ASR for dialects, code-switching, and songs
Apr 2026 · mimo.mi.com · its alternatives →
- 4

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 →
- 5
KRFT 1.5.0▲110A modular instrument for music production
2017 · studioamplify.com · its alternatives →
- 6
Stable Audio 2.0▲156One shot sample generation for the SignalsAndSorcery.com platform - shiehn/sas-sample-generator
2024 · stability.ai · its alternatives →
- 7

AOO is a lightweight and flexible peer-to-peer audio streaming and messaging solution. It allows to send audio and messages in real-time and on demand between network endpoints - not only in local networks, but also over the public internet! The C/C++ library can be easily embedded in host applications or plugins. It even runs on embedded devices, such as the ESP32. In addition, the project contains a Pure Data external and a SuperCollider extension. The following article provides a high level introduction and demonstrates some use cases:…
2024 · aoo.iem.sh · its alternatives →
- 8

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 →
- 9

Graph-oriented live coding language and music/audio DSP library written in Rust - chaosprint/glicol
2022 · github.com · its alternatives →
- 10RR
Last April I shared about my Resonate project here (https://news.ycombinator.com/item?id=43694157) A lot has happened since: the work I presented in much more detail at last June's International Computer Music Conference (ICMC) got best paper award. I also gave a talk at the Audio Developer Conference in Bristol last November, the video is on YouTube). This year's work, which I recently presented at this year's ICMC, starts with known techniques from the phase vocoder literature to build self-tuning filter banks that extract very efficiently the frequency components that are…
2025 · alexandrefrancois.org · its alternatives →
- 11

Production ASR for noisy multilingual audio
Apr 2026 · microsoft.ai · its alternatives →
- 12

- 13

Low power, cross-platform 3D audio
2016 · superpowered.com · its alternatives →
- 14AT
A 3.16M-parameter INT4 transformer running entirely in the on-chip memory of a Xilinx Kria KV260. Zero DRAM in the token loop, 59,965 tok/s on the fabric, bit-exact. Chat with it live.
Aug 2026 · mikeayles.com · its alternatives →
- 15
Audio Kit▲96Open-source audio synthesis, processing & analysis platform.
2014 · audiokit.io · its alternatives →
- 16

Max/MSP externals covering essential studio gear. Contribute to apresta/max-studio-tools development by creating an account on GitHub.
Jul 2026 · github.com · its alternatives →
- 17

SIMD noise library for Rust. Contribute to verpeteren/rust-simd-noise development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 18

This project is a Windows port of the whisper.cpp implementation: https://github.com/ggerganov/whisper.cpp Which in turn is a C++ port of OpenAI's Whisper automatic speech recognition (ASR) model: https://github.com/openai/whisper The implementation has no dependencies, usually much faster than realtime, and should hopefully work on most Windows computers in the world.
2023 · github.com · its alternatives →
- 19

Graph-oriented live coding language and music/audio DSP library written in Rust - chaosprint/glicol
2022 · github.com · its alternatives →
- 20

A powerful realtime node-based audio synthesizer. Contribute to monadgroup/axiom development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 21KJ
2014 · pozadi.github.io · its alternatives →
- 22RS
2016 · gammarf.io · its alternatives →
- 23

a5eq.lv2 is a versatile LV2 plugin featuring a high-performance 5-band equalizer, equipped with a Low Shelf, three Peaking Filters, and a High Shelf. The goal of a5eq.lv2 is to deliver optimized performance on both AMD64 and ARM64 architectures. By leveraging SIMD instructions, the plugin ensures efficient and reliable operation. As the author of a5eq.lv2, I welcome feature requests and ideas for improvement.
2024 · github.com · its alternatives →
- 24

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