title: Agora Audio Broadcasting Overview description: platform: All_Platforms updatedAt: Mon Mar 11 2019 09:08:59 GMT+0000 (UTC)
Agora Audio Broadcasting Overview
The Agora Native SDK for Audio Broadcasting enables one-to-many and many-to-many audio live streaming. Different from the traditional CDN live broadcast, which only allows one-way communication from the hosts to the audience, the Agora SDK for Interactive Broadcast empowers the audience to interact with the hosts through hosting-in, like a viewer jumping onto the stage in the middle of a play to perform. The Agora Native SDK for Interactive Broadcast is applicable to scenarios that encourage active engagement, such as game-playing, online classes for students in small groups, and Q&A sessions during E-commerce live streaming.
Functions and Scenarios
The Agora Native SDK for Audio Broadcasting boasts a flexible combination of functions for different scenarios.
|Host-in at the Client Side||An audience switches to a co-host and interacts with the existing host.|
|Host-in across Channels||Hosts interact with each other across channels.||PK Hosting.|
|Audio Mixing||Sends the local and online audio with the user's voice to other audience members in the channel.|
|Screen Sharing||Hosts share their screens with the audience in the channel.|
|Modify the Raw Data||Developers obtain and modify the raw voice data of the SDK engine to create special effects, such as a voice change.|
|Inject an Online Media Stream||Injects an external audio stream to an ongoing live broadcast channel. The host and audience in the channel can listen to or watch the stream while interacting with each other. You can set the attributes of the audio source.|
|Push Streams to the CDN||Sends the audio of your channel to other RTMP servers through the CDN:
See the following sample code for application scenarios:
|Property||Agora Live Broadcast Specifications|
|SDK Package Size||3.69 MB to 7.75 MB|
|Host Capacity||17 users|
|Audience Capacity||One million users|
|Audio Anti-packet-loss Rate||70% (uplink and downlink)|
|Latency between the Host and the Host-in Audience/Host||200 ms to 600 ms|
The Agora Native SDK for Interactive Broadcast is supported on platforms such as iOS, Android, Windows, macOS, Linux, Web, and WeChat Mini-programs, and allows for cross-platform connections. The following is a list of supported platforms and their versions.
The Android SDK supports the following architecture: