How to Publish and Receive Stereo Audio

Stereo audio can be published to Phenix using:

• RTMP with the mpegts-unicast-ingest capability
• MPEG-TS or source-uri into the Phenix Encoder. The configuration file for the content must include the argument '--audio-channel-layout=stereo'

When contributing stereo audio using RTMP or SRT, use the mpegs-unicast-ingest capability to preserve the stereo channels. Without using this capability, a single track will be played for both channels.

The audio and video must be in formats that are supported by mpegts-unicast-ingest, e.g., 48 kHz sample rate. See details for SRT and RTMP.

Optionally, the high-fidelity can be used to provide a higher bitrate to enhance overall audio quality.

If you are using the Phenix Encoder to publish content with stereo audio, please contact your Phenix technical representative for assistance.

Stereo is offered in the SDP negotiation with all browsers, so stereo will be available if the client's browser supports stereo. Stereo is also available in the mobile SDKs (Android and iOS).