15:I[981,["658","static/chunks/658-a698693f56d0116a.js","183","static/chunks/183-6beeeb801c274aaa.js","474","static/chunks/app/%5Btype%5D/layout-631c4730b83c8223.js"],"Posts"] 16:T46d,I built an English pronunciation assessment engine that fits in 17MB and runs in under 300ms on CPU.

Architecture: CTC forced alignment + GOP scoring + ensemble heads (MLP + XGBoost). No wav2vec2 or large self-supervised models — the entire pipeline uses a quantized NeMo Citrinet-256 as the acoustic backbone.

Benchmarked on speechocean762 (standard academic benchmark, 2500 utterances): - Phone accuracy (PCC): 0.580 — exceeds human inter-annotator agreement (0.555) - Sentence accuracy: 0.710 — exceeds human agreement (0.675) - Model is 70x smaller than wav2vec2-based SOTA

Trade-off: we're ~10-15% below SOTA on raw accuracy. But for real-time feedback in language learning apps, the latency/size trade-off is worth it.

Available as REST API, MCP server (for AI agents), and on Azure Marketplace.

Demo: https://huggingface.co/spaces/fabiosuizu/pronunciation-asses...

Interested in feedback on the scoring approach and use cases people would find valuable.17:T4e3,Hey HN,

I vibed Chowser because I was tired of links always opening in my "default" browser when I wanted them in a specific session (work, personal, research, etc.).

Chowser is a lightweight macOS app that acts as your default browser. Instead of opening a link immediately, it pops up a sleek picker that lets you choose which browser to use for that specific link.

Key Features: Lightweight & Native: Built with SwiftUI/AppKit. It lives in your menu bar and uses zero resources when idle. Keyboard First: Press ⌘⇧1 through ⌘⇧9 to snap-select a browser instantly. Set & Forget: Once it's set as your default browser, it stays out of your way until you click a link. Open Source:

Accenture combats AI refuseniks by linking promotions to log-ins

Show HN: I Emulated My Childhood

Show HN: 17MB pronunciation scorer beats human experts at phoneme level

The Great Locomotive Chase

State of Generative Media

Brave Iranians gather in central Iran to honour those killed in uprising

Trump to order declassification of UFO/UAP related files

Show HN: SaveTheTrade – a simple trade journal and performance tracker

Wikipedia has deprecated and will blacklist archive.today

TamboUI: A Modern Terminal UI Framework for Java (GraalVM Native)

Optimism Plunges 28% as Base Drifts from OP Stack: What's Next?

Show HN: Aismond – attack-surface monitoring for MSP client fleets

I discovered a hidden tragedy tied to Russia's most famous painting

I have included AI in Corpus Lifetime free. net worth in one place

Retrofitting Bridges with "Smart" Steel

CHERIoT Rust status update #0

Pens, pen clips, design engineer, obsession. Surprisingly interesting [video]

Trump directs US govt to release files on 'alien and extraterrestrial life'

Show HN: Delulu9 - SEO keyword research for Claude Code content pipeline

Show HN: Chowser – A lightweight macOS browser chooser

I Donut Belive

Show HN: FakeSec – AI photo detector with 12 independent analysis methods

Ask HN: How many people are facing the problem of gst invoice mismatch?

Using an Agent Engine AI Agent from Dotnet C#

Vibenchmarking different JSON schema validator CLI tools

Regulated Crypto Investigation Team – Intelligence Cyber Wizard Services

I tried building my startup entirely on European infrastructure

How HTTP Requests Work

Tech Is Taking over Olympic Curling

US Justice Department hangs Trump banner at headquarters

Show HN: MatsuriMap – Free interactive map for events and festivals in Japan