How to Broadcast with OBS Studio or a Mobile RTMP Encoder

The HTML5 Videochat interface accepts RTMP streams from any encoder — OBS Studio on desktop, Larix Broadcaster on mobile, or any other RTMP-compatible app. This enables professional-quality streaming from dedicated hardware or software without being limited to browser-only broadcasting.

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Requirements

– A site running Broadcast Live Video with a VideoWhisper Server or Wowza SE connection

– A channel configured with roomInterface = html5app (HTML5 Videochat)

– OBS Studio (PC/Mac/Linux) or Larix Broadcaster (iOS/Android)

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Getting Your Stream Settings

1. Log in to your site and go to your channel page

1. From the channel menu, open External Encoders (or Broadcast → External Apps)

1. Copy the Server URL and Stream Key shown for your channel

These two values are all you need to configure any RTMP encoder.

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Setting Up OBS Studio

1. Open OBS → Settings → Stream tab

1. Set Service to Custom

1. Paste your Server URL into the Server field

1. Paste your Stream Key into the Stream Key field

1. Click Apply and OK

1. Click Start Streaming

Recommended OBS settings:

– Video bitrate: 1000–4000 kbps depending on resolution

– Audio bitrate: 128–192 kbps

– Resolution: 1280×720 or 1920×1080

– Encoder: x264 (software) or hardware encoder if available

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Setting Up Larix Broadcaster (Mobile)

Larix Broadcaster is a free, professional RTMP app for iOS and Android — the recommended replacement for the discontinued Wowza GoCoder.

1. Download Larix Broadcaster from the App Store or Google Play

1. Open Settings → Connections → tap + to add a new connection

1. Enter a name (e.g., your site name)

1. Set URL to your Server URL + / + your Stream Key (combined as one RTMP URL, e.g., rtmp://your-server/live/streamkey)

1. Tap Save and return to the main screen

1. Tap the record button to start streaming

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Viewers Watch via HLS/DASH

Once your encoder starts sending RTMP, the channel automatically becomes live. Viewers on your site watch via:

– HLS — iOS, Android, and all mobile browsers

– MPEG-DASH — desktop browsers with adaptive bitrate

– WebRTC — if available, for lowest latency playback

Chat is active alongside the stream for real-time viewer interaction.

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See Also

– Videochat & Tipping Platform →

– Get a Turnkey Hosted Site →