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PulseWaves
Ultra-efficient generative LoFi engine in Rust for deep work
Meet PulseWaves: a local-first, open-source procedural audio generator written in Rust. No loops, no cloud tracking—just 100% real-time soundscapes tailored across 5 neuro-acoustic modes and 9 native textures. Powered by your HRV, it codes perfect states for deep focus or deep rest. Zero lag, zero battery drain. Open, sync, and breathe.
Hi Product Hunt community! 👋
I’m Walther, the creator behind PulseWaves.
Like many of you, I spend hours glued to my screen coding and designing. For years, my go-to for deep focus was streaming Lo-Fi channels or noise apps. But I noticed two things that bothered me: they constantly drained my battery, and my brain eventually got tired of the same repeating audio loops, breaking my concentration.
That’s why I decided to build a high-performance solution from scratch under a local-first philosophy.
PulseWaves is not an audio player; it’s a fully native, procedural synthesizer written in Rust that calculates every note, textmode visual, and frequency transition in real-time, directly on your device. No internet required, zero cloud tracking, and almost no battery overhead.
Whether you need to smash a heavy coding session, take a precise power nap, or just wind down, PulseWaves is built to adapt to your mind.
I’d love to hear your thoughts, feedback, or any ideas on how you customize your focus environment. Thank you so much for the support!
How does it actually pull HRV data - is it pairing over Bluetooth with something like a Whoop or Apple Watch, or do you need a separate sensor?
Rust audio engine with HRV-driven soundscapes is a really compelling combo, and the local-first angle makes it feel snappy on my machine.
Curious how it actually pulls HRV data locally without needing a paired wearable or some extra bridge app—does it read from the webcam or expect a specific device?
The Rust build feels snappy on my laptop, and the focus mode with the rain texture genuinely helped me settle into a writing session without my usual distractions.
The Rust foundation is a really smart call here, getting that kind of low-latency performance without eating battery is no small feat. Love that it leans into HRV for real personalization instead of just slapping an AI label on it.
Rust audio tools always make me nervous but this runs ridiculously light on my laptop, barely any cpu while shaping HRV-driven textures. The focus mode actually held my attention through a 90-minute writing block, which rarely happens.
Switched between the focus and rest modes on my laptop, and the textures actually felt distinct instead of generic noise. Love that it just runs locally without phoning home, makes it easy to throw on for a long work session.
The Rust build is impressively light and the HRV-driven textures actually shift in a way I can feel within a minute. Wish there was a simple way to save custom mode blends, but for a v1 this is genuinely polished.
About PulseWaves on Product Hunt
“Ultra-efficient generative LoFi engine in Rust for deep work”
PulseWaves was submitted on Product Hunt and earned 5 upvotes and 11 comments, placing #69 on the daily leaderboard. Meet PulseWaves: a local-first, open-source procedural audio generator written in Rust. No loops, no cloud tracking—just 100% real-time soundscapes tailored across 5 neuro-acoustic modes and 9 native textures. Powered by your HRV, it codes perfect states for deep focus or deep rest. Zero lag, zero battery drain. Open, sync, and breathe.
PulseWaves was featured in Android (57.3k followers), Health & Fitness (82.9k followers), Productivity (655.7k followers), Meditation (12.7k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 242.1k products, making this a competitive space to launch in.
Who hunted PulseWaves?
PulseWaves was hunted by Walther Stein. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Walther Stein