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Hotori8h ago · 9 min read

How we deliver voice only to people nearby in a 2D virtual office (SFU subscription permissions, not mixing)

In our 2D virtual office, voice reaches only nearby people because the media server refuses to forward it to anyone else. The app server works out who is near whom and gives each speaker a list of all

1 hotoriplace.hashnode.dev

Muhammad JareerOct 7 · 8 min read

Breaking Down the Per-Minute Cost of a Production Voice Agent

Every AI voice call is five services billing at the same time. Platforms advertise one of them as the headline price, which is why the number on the pricing page rarely matches the invoice. In 2026, a

keencraft.hashnode.dev

Neeraj SharmaOct 2 · 3 min read

Our voice agent costs 2.5¢ a minute. Here's the whole bill.

We run an AI interviewer that talks to candidates over phone calls. It started on a managed voice platform at roughly 10¢ a minute. The same interviews now run on a custom LiveKit pipeline at about 2.

axionry.hashnode.dev

Mohammed UsmaniSep 29 · 11 min read

From 2.44 s to 1.81 s: working through my voice agent's latency list, and the fast model that went silent

TL;DR Part 1 ended with a list of things to try. I tried all of them on the same phone agent, now running a recruiter's pre-screening call. At the agent, the median reply went from 2.44 s to 1.81 s

mohammed-usmani.hashnode.dev

Mohammed UsmaniSep 26 · 11 min read

LiveKit turn detection on real phone calls: why a 2-second average hid a 3.6-second stall

TL;DR I built a voice agent you can call from a real phone (SIP through LiveKit Cloud) and measured every turn instead of trusting averages. On a test call the average reply took about 2 seconds, bu

mohammed-usmani.hashnode.dev

Takshak Singh RajawatAug 15 · 12 min read

ArthSakhi: Building a Voice Agent That Knows When to Speak, Act, and Ask for Help

A practical story of building a voice agent that can guide users, use tools, respect consent, and know when to ask for help. Project: ArthSakhi (अर्थसखी)Challenge: 10 Days of Voice Agents — VoiceForB

takshak.hashnode.dev

DEEPANKAR PatelAug 15 · 16 min read

Kisan Mitra: Building a Voice-First AI Farming Companion for Indian Farmers

How I built a multilingual agricultural voice agent with memory, real-time data, outbound calls, human escalation, specialist agents, and analytics. What if a farmer didn't have to open an app, navig

bot-docs.hashnode.dev

Pooja MAug 15 · 6 min read

Building LearnBuddy: A Step-by-Step Guide to Creating an AI Voice Agent for Students

Why I Built LearnBuddy Artificial intelligence has transformed the way we learn, but most AI learning tools still focus primarily on English. As a student, I wanted to explore how AI could make learni

learnbuddyjournal.hashnode.dev

Om MishraMay 8 · 8 min read

i didn't want to walk desk to desk

A classroom problem, five design questions, and what I built to answer them Picture this: A lab of thirty students learning to build things with AI. Two hours. One teacher. And every few minutes, some

peek.hashnode.dev

Vasudev SiddhMay 4 · 8 min read

Vaani: Building a Voice Agent That Knows When Not to Talk

The hardest part of a voice agent is not making it speak. It is making it speak at the right time, with the right context, and then leaving behind enough evidence that a human can trust what happened.

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