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ProductProduction · v1.0.0Desktop softwareLive Captions & Speech

Echoline

Live captions and subtitles on your PC with Hindi/Hinglish support.

Live captions and subtitles on your screen for your microphone or any app's audio, made 100% locally on your PC with Hindi and Hinglish support.

Download for Windowsx64 · v1.0.0 · Direct .exe
100% Offline
Zero Telemetry
SPEC.01

<180ms

Speech latency

SPEC.02

0 bytes

Cloud audio sent

SPEC.03

Native

Hinglish support

SPEC.04

Live

Status

studio / echoline · DirectComposition
Modern architectural studio workspace
pulse / 30 days

Uptime

99.98%

LCP

0.9s

Errors

0.02%

30 days · one incident, 4m

The Problem

Context breakdown during technical communication

Cloud captioning services send private meeting audio over the internet, introduce multi-second latency, and fail terribly on Indian English, Hindi and code-switched Hinglish.

How It Works

Transparent hardware overlay with zero-latency input

An offline real-time speech engine running on local CPU/GPU that provides streaming subtitle overlays, acoustic soundwave meters, and one-click export to SRT/VTT without sending a single byte to the cloud.

4 core layers
Speech Engine

Local offline ASR with Voice Activity Detection (VAD) and normalizer

Languages

Native support for Indian English accents, Hindi and conversational Hinglish

Visualizer

Real-time acoustic RMS soundwave canvas and confidence-tinted word tokens

Export

Instant timestamped transcript export to SRT, VTT and TXT formats

Start here

Tell us what you want to build.

One call, a deterministic technical scope, and a 100% fixed price. From architecture to launch, we engineer software that drives real business results.