VoxFlux converts live event audio into production-ready captions and AI translation for event screens, live streams and AV workflows.
Use microphones, USB audio interfaces or mixer feeds as the source for live captioning and AI translation during conferences, hybrid events and productions.
Convert spoken content into real-time captions or AI-translated captions for audiences, accessibility workflows and multilingual event delivery.
Deliver caption and translation outputs to event screens, relay displays, live streams, webcast workflows and audience-facing browser outputs.
Designed for AV teams, event organisers and production companies that need practical caption and translation workflows for live event environments.
Launch live captions or AI translation in minutes. Connect a live event audio source, create a session and send production-ready outputs to event screens, live streams and AV workflows.
Choose the microphone, USB audio interface or mixer feed you want VoxFlux to monitor. The live audio meter confirms signal presence before streaming begins.
Select source language, output language and operating mode, then create a secure live session. VoxFlux automatically generates caption and translation output links.
Begin streaming live event audio to VoxFlux for live captions or AI translation. Usage and remaining credit balances update during operation.
Send captions or translations to event screens, relay displays, confidence monitors, live streams, browser outputs or mobile viewers.
VoxFlux runs entirely in the browser with no software installation required. For reliable live captions and AI translation, use supported browsers, stable internet connectivity and clean live event audio sources.
Recommended: Google Chrome (latest), Microsoft Edge (latest)
Supported: Safari (best effort), Firefox (limited operational testing)
Required browser capabilities include microphone/audio device access, WebSocket connectivity, local storage, clipboard access and fullscreen support.
Minimum: 10 Mbps download / 5 Mbps upload
Recommended: 20+ Mbps download / 10+ Mbps upload
Mission-critical live events and AV workflows should use wired Ethernet wherever possible rather than shared or unstable Wi-Fi connections.
VoxFlux is designed for desktop or laptop operation with browser access, stable internet connectivity and access to live event audio sources.
Mobile devices are supported for viewer outputs, not primary production operation.
VoxFlux works with live event audio sources presented to the browser as an input device, including microphones, USB audio interfaces, mixer USB outputs and virtual audio routing tools.
Live captions appear in near real time with low operational latency, depending on internet stability, audio quality and browser performance.
Live translation workflows typically introduce a small additional delay compared with same-language live captioning due to translation processing.
VoxFlux processes the audio source selected in your browser for live captions and AI translation. For best results, use a clean programme feed, mixer output or dedicated USB audio interface rather than a laptop microphone.
USB microphones and headset microphones can be used for simple setups, testing and small meetings.
Built-in laptop microphones are not recommended for live event production because they often capture room noise, echo and audience sound.
Interfaces such as Focusrite, MOTU, RME, Audient, Behringer and similar USB devices can be selected directly inside the ASR Control page.
Use a stable line-level feed where possible and avoid clipping the input.
VoxFlux can use live event audio from mixing desks that expose a USB audio output to the browser, or from a mixer routed through an external USB interface.
A post-fade or dedicated speech mix is usually better than a full room mix.
Advanced users can route event audio using tools such as Loopback, VB-Audio, BlackHole or Dante Virtual Soundcard, provided the final route appears as a browser-selectable audio input.
Use the VoxFlux audio meter before streaming. Aim for a strong, consistent speech signal without red-level clipping.
Clean speech input improves live caption accuracy and AI translation quality.
For conferences, hybrid events and live productions, take a direct audio feed from the AV mixer or audio interface rather than relying on room microphones.
One clear speech feed is usually better than multiple open microphones mixed with room noise.
The VoxFlux live control dashboard is where live caption and AI translation sessions are created, audio sources are selected, languages are configured and live event audio is streamed in real time.
Create a live caption or AI translation session directly from the browser. VoxFlux automatically generates output links for event screens, browser displays and mobile viewing.
Existing sessions may be restored if still valid.
Select the spoken source language and, where required, the target translation language for multilingual live event workflows.
VoxFlux supports a wide range of live captioning and AI translation languages for conferences, webinars, broadcasts, hybrid productions and international events.
Language availability may vary depending on selected source and target language combinations. For mission-critical multilingual events, always test your exact workflow in advance.
Choose between live captions, AI translation or bilingual output depending on your production requirements.
Mode selection affects output behaviour and credit usage.
The live input meter confirms signal presence before streaming begins, helping operators verify audio routing before going live.
Start and stop live event audio streaming directly from the control interface.
Live usage, active session cost and remaining credits update during operation.
The built-in preview provides live operator monitoring for captions, translation and transcript activity without affecting public output displays.
VoxFlux offers three live output modes, optimised for different production workflows including live captions, confidence monitoring, event screens and AI translation displays.
Lowest-latency live caption mode with immediate transcript rendering.
Best for accessibility captions, confidence monitors and fast-response live production environments where immediacy matters most.
Live Type uses interim speech recognition updates before final caption confirmation.
Smooth scrolling final-caption mode designed for teleprompter-style confidence viewing.
Best for presenters, stage confidence monitors and cleaner live caption readability.
Only completed final captions are shown, avoiding interim flicker.
Static final-caption display for clean audience-facing caption presentation.
Best for AI translation displays, event screens, relay screens, stream overlays and stable public caption output.
Designed for readability with no scrolling or interim caption movement.
The VoxFlux caption display output is the live presentation layer for captions and AI translation. Use it for event screens, audience displays, confidence monitors, relay screens, browser-based outputs and multilingual event delivery.
The caption display connects to your active VoxFlux session using the generated live output link.
Connection and streaming status are displayed live, helping operators verify output readiness.
Configure font family, font size, bold, italic, text colour and background colour to match production requirements.
Move captions horizontally or vertically, control caption width and adjust line count to suit event screens, projectors, stream overlays or custom layouts.
The caption display supports fullscreen browser presentation for live production environments including dedicated event screens, audience displays and confidence monitors.
Automatically clear displayed captions after a configurable silence period, or keep captions persistent depending on your production workflow.
Optional output filtering modes can help soften or mask inappropriate language where required for public-facing caption and translation displays.
VoxFlux uses account credits for live caption and AI translation sessions. Credits can be topped up from your dashboard and monitored during live event operation.
Live caption sessions use caption credits while live event audio is actively being processed.
Caption credits are designed for same-language live captions, event screens, live streams and accessibility workflows.
AI translation sessions use translation credits while spoken content is translated into another language.
Translation credits are used for multilingual events, translated captions, live streams and AV workflows.
During operation, VoxFlux shows active session usage, current session cost and remaining account balances.
Operators should check available credits before starting mission-critical live events.
Credits can be added from the VoxFlux dashboard using available caption or translation credit packages.
Top up before events to avoid interruption during live caption or AI translation workflows.
VoxFlux can support concurrent live sessions, depending on account access, available credits and active usage.
This is useful for multi-room conferences, parallel sessions and larger live event productions.
Account areas may include order history, billing details and previous credit purchases for operational tracking.
Keep billing details up to date before purchasing credits for live event delivery.
VoxFlux can generate a dedicated mobile viewer link for private live caption and translation viewing on phones or tablets, ideal for presenters, speakers and backstage teams.
The ASR Control page can generate a mobile-specific viewer link optimised for phones and tablets.
The viewer connects automatically to the active session without exposing operator controls.
Mobile Viewer is designed for readability with a simplified display, clean presentation and distraction-free viewing during live events.
Presenter confidence monitoring, backstage support, private translation viewing, speaker reference feeds and discreet live caption monitoring.
Mobile Viewer supports both portrait and landscape usage depending on device preference and viewing distance.
Because the viewer receives lightweight live captions and translation text rather than video, mobile viewing works well even on modest mobile internet connections.
Mobile Viewer is intended for viewing only. Primary live production control should remain on a desktop or laptop operator workstation.
VoxFlux stores recent live session activity and provides downloadable transcript exports for post-event review, subtitle workflows, event documentation, content creation and archive use.
Recent live caption and AI translation sessions can be reviewed from your account dashboard, giving operators visibility into previous events, usage history and completed live productions.
VoxFlux provides downloadable transcript exports for completed live sessions, making it easy to review event captions, archive conference content or hand over transcripts after production.
Plain text transcript downloads provide a simple readable transcript record suitable for editing, reporting, accessibility records, content creation and event documentation.
Download subtitle-compatible SRT files for post-production caption workflows, video subtitling, accessibility delivery, video publishing and content repurposing after live events.
Transcript exports help event teams move smoothly from live delivery into post-event editing, subtitle creation, accessibility compliance, archive workflows, knowledge sharing and internal documentation.
Transcript downloads are restricted to authenticated account access and associated session ownership, helping maintain secure control of event transcripts and production records.
Most live event setup issues are quick to resolve. Use the guidance below to diagnose common browser, audio, connectivity, live caption and AI translation workflow problems.
Confirm your browser has permission to access microphones and audio devices. Refresh the device list after connecting new hardware.
Confirm the correct audio source is selected and check the live input meter for signal presence before starting the stream.
Confirm the output page is connected to the correct active session and that live streaming has been started from the ASR Control dashboard.
Older saved sessions may expire. Create a new live caption or AI translation session if a restored session is no longer valid.
Confirm the correct operating mode is selected and that both source and target languages are configured correctly for your multilingual event workflow.
Confirm the session is actively streaming and that the mobile viewer link was generated from the current live session.
Live caption performance depends on internet stability, browser performance, audio quality and workflow mode. AI translation workflows naturally introduce slightly more delay than same-language live captioning.
Live caption accuracy is heavily affected by noisy event audio, room microphones, overlapping speakers, clipping, poor microphone placement or incorrect language selection. A clean direct speech feed usually delivers the best results.
Live caption and AI translation sessions require available credits. Check balances in the ASR Control interface before or during operation.
Some managed corporate networks, firewalls or restrictive browser security policies may interfere with live WebSocket connections. Testing on the intended event network in advance is strongly recommended.
For live event production, use current versions of Chrome or Edge and avoid overloaded machines, unstable Wi-Fi or unnecessary browser tabs.
Quick answers to common technical, operational and live event workflow questions about VoxFlux live captions, AI translation and browser-based event delivery.
No. VoxFlux runs entirely in the browser with no desktop software installation required.
Current versions of Google Chrome and Microsoft Edge are recommended for live event production and operational use.
Yes. VoxFlux works with mixer feeds, USB audio interfaces and other audio sources that appear as selectable browser input devices.
Accuracy depends heavily on audio quality, speaker clarity, background noise and language selection. Clean direct speech feeds produce the best live caption performance.
Live AI translation appears in near real time, with slight additional delay compared with same-language live captions due to translation processing.
VoxFlux supports a wide range of languages for live captions and AI translation across conferences, webinars, hybrid events, live streams and multilingual event workflows.
Yes. VoxFlux supports concurrent live caption and AI translation sessions, subject to available account usage and credit availability.
Yes. Mobile Viewer provides a dedicated live caption and translation viewing experience for phones and tablets, ideal for presenters, speakers, multilingual attendees and backstage teams.
Yes. VoxFlux supports TXT transcript exports and SRT subtitle files for post-event editing, subtitle workflows, accessibility delivery and content repurposing.
A clean direct speech feed from a mixer, audio interface or dedicated microphone will usually deliver significantly better caption accuracy than room microphones or noisy laptop audio.
If you have technical questions, feature suggestions or need help with a live workflow, our team is here to help.
Contact Support