What I Learned Tracking 5 Realtime Moderator Signals in a Node.js Voice Lobby
Short answer: for realtime moderator disconnects in a gaming voice lobby, correlate observability signals across transport, session ownership, and f…
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Audio works, video is black: debugging a layered WebRTC SFU in Go
Audio connects instantly, the viewer hears everything, and the video tile stays black. The publisher side looks fine. ReplaceTrack returns nil , whi…
Benchmarking Voice AI for Engineering Screening: How We Achieved 94% Correlation with Senior Human Interviewers
When automated hiring platforms claim "expert-level candidate evaluation," engineering leaders remain skeptical. LLM-based evaluators are notoriousl…
EP05: How Simulcast works and what it's for
Episode 5 of 20 in the **PPCDN Low-Latency Live Streaming Course * — building a self-hosted, low-latency live-streaming CDN from protocols to global…
WebRTC vs HLS for live streaming: latency, interaction and when to use each
From the Streaming CDN team. The original, kept up to date, is at streaming-cdn.ewin888.com/guides/webrtc-vs-hls-live-streaming-latency . HLS and DA…
WebRTC Voice Lobby Telemetry: Setting Replay Boundaries for Disconnected Players
Short answer: replay connection and delivery metadata, not recorded voice, and stop replay at the point where a player could mistake an old event fo…
I built a chat app solo — rooms, voice/video calls, E2EE, and in-room games
I didn't want to build another messenger. There are plenty. What I wanted was a place where you walk into a room built around a shared interest — mo…
Building a Zero-Middleman Peer-to-Peer Remote Desktop using WebRTC and Native OS APIs
Abstract Most traditional remote desktop solutions operate on a client-server relay paradigm: every desktop video frame and every mouse movement is…
Как мы подружили WebRTC с Asterisk: детективная история одного звонка
Задача звучала невинно: два браузера, кнопка «Call», голос в обе стороны. Под капотом — Asterisk 22 в Docker, Coturn, JsSIP и SIP поверх WebSocket.…
What breaks when you self-host a TURN server (coturn — symptom, cause, fix)
The first article in this series was the traps inside the code. The second was the layer underneath — the candidates that lie, the UDP firewall nobo…
WebRTC works on your laptop. Here is what breaks when you put it on a server.
The first article in this series covered the traps inside the code — the Pion v4 API changes, the SSRC rewrites, the renegotiation timing. This one…
What actually breaks when you build a WebRTC SFU in Go
Every Pion example I found stops at "hello world": two peer connections, one track, it works, the blog post ends. That is the easy 20%. The other 80…
The iOS camera lies for about a tenth of a second, and that is why nobody noticed it
Now, two weeks ago I wrote that the iOS camera track reports 1920 by 1080 while the browser draws portrait, and that you should measure the picture…
Your Browser Found an Address. Now Let's Find a Path.
Part 2 of the WebRTC Blog Series — The Lab In Part 1 , we asked a deceptively simple question: What address does my browser have? We discovered that…
Building a random chat where language doesn't matter: WebRTC, relay as a condition, and live translated captions
The original Omegle proved something for fourteen years: two strangers who would never have met can have a good conversation. It shut down in 2023.…
Realtime Audit Signals for Voice Lobby Fan-Out (and Why Delivery Evidence Matters)
For a gaming voice lobby, the least complex design that still gives operators trustworthy evidence is a small audit stream beside the media path: em…
The Next Person Should Not Inherit Your Beauty Filter: Build a Reset-Safe Tencent RTC Camera Booth
A shared camera experience at a hackathon, community event, or creator booth has an awkward failure mode: the next participant can inherit the previ…
How to Ship AI in Real-Time Communications: A 7-Stage Adoption Framework for Engineering Teams
How to Ship AI in Real-Time Communications: A 7-Stage Adoption Framework for Engineering Teams AI is rapidly changing how real-time communication pl…
How I Built a Zero-Install, Multi-Gigabyte P2P File Transfer Engine in the Browser with WebRTC & File System Access API
Ever tried sending a 15GB 4K video file or a raw dataset to a teammate sitting at the next desk? The options are surprisingly clunky: Hunt for a phy…
A Practical Framework for Testing AI Voice Agents Before They Hit Production
If you've shipped a conversational AI voice agent, you already know the demo always works. Quiet room, good mic, patient tester. The real test start…
How We Solved 360 Video Streaming & Real-Time Uploading for iOS Devices
When building real-time media applications—especially in high-stakes environments like remote exam proctoring—supporting mobile devices comes with a…
Playwright + Chromium: 1 Script Replaces 2 Manual Testers for WebRTC Video Call E2E
If you've ever watched a QA engineer press "call" on one laptop, walk across the room, and press "answer" on a phone before the ringing stops, you a…
ZeroRelay: Direct Browser-to-Browser Sharing - No Server Ever Sees Your Data
A fully open-source P2P mesh app for sharing text, code, notes, and files directly between browsers. No signup, no accounts, no database. The Pain P…
Media over QUIC in 2026: a hands-on intro for web devs
TL;DR Media over QUIC (MoQ) is an IETF pub/sub transport for live media running over QUIC and WebTransport. As of April 2026 WebTransport works in e…
Bridging RTSP to WebRTC on iOS: Feeding GStreamer Frames into a WebRTC Pipeline
Most WebRTC tutorials on iOS assume your video comes from the device camera. You call RTCCameraVideoCapturer , point it at the front lens, and the f…
WebSocket Half-Open Connections and gRPC Gateway Discovery in Complex LAN WebRTC Systems
The target scenario is not consumer calling. It is closer to B2B institutional device fleets: many shared devices, long-running uptime, centralized…
I Built an AI-Powered Meeting Platform From Scratch — Here’s How It Actually Works
A complete breakdown of Hoovik: WebRTC signaling, distributed Node.js with Redis, real-time emotion AI, RAG on meeting transcripts, and a Python tra…
WebRTC Video Call Tutorial with PeerJs Alternative
WebRTC Video Call Tutorial: Build a 1:1 Video Chat in JavaScript with @metered-ca/peer Scope — a 2-tab, 1:1 WebRTC video call . Two browser tabs joi…
Building Production Voice AI Agents: Latency, Architecture, and What Nobody Tells You
Originally published on prodinit.com Key Takeaways Sub-300ms end-to-end latency is the human-conversation threshold for voice AI. The latency budget…
How we connect two strangers' webcams fast (and keep the TURN bill small)
Camdiv matches you with a random stranger and puts you both on live video. I wrote separately about the genuinely hard part, which is moderation. Th…