Alibaba Cloud RTC provides core features such as audio-only communication, video calls, and interactive streaming. It also includes key attributes such as multi-resolution video and device adaptation, which allow you to select scenarios based on your business needs.
Main features
Alibaba Cloud RTC provides the following main features:
Feature | Typical scenarios |
Audio-only communication | 1-on-1 and multi-party voice chat, in-game voice chat, voice parties, Werewolf, board games, and foreign language teaching. |
Video calls | 1-on-1 and multi-party video chat, interactive classrooms, video parties, and video conferences. |
Interactive streaming | Enables interactive co-streaming between streamers and viewers. Other viewers can watch multiple streamers interact and co-stream across different live channels. |
Screen sharing | Supports screen sharing from PCs and subscriptions on all platforms. This is a productivity tool for interactive classrooms, video conferences, esports streaming, and game commentary. |
Bypass live streaming | Combines audio and video streams in a channel based on a selected layout. The combined stream is then pushed as an RTMP stream to Alibaba Cloud Live for large-scale distribution to an unlimited number of viewers. |
Cloud recording | Combines audio and video streams in a channel based on a selected layout. The combined stream is then recorded in the cloud and stored in OSS. |
Dynamic video encoding | Multi-resolution video that adapts to device screens. Dynamic encoding that adapts to network conditions to ensure stable and smooth calls. |
Set video properties | Adjust video specifications, orientation, definition, and smoothness based on the business scenario and user preferences. |
Media device management | Supports querying, testing, and switching audio and video devices. Includes a device wizard. |
Camera management | Provides methods to switch between front and rear cameras, zoom, set exposure, and focus. This makes the captured image clearer and optimizes its size and brightness. |
Key attributes
Alibaba Cloud RTC provides the following key attributes:
Attribute | Description |
Audio 3A | Industry-leading audio 3A processing, which includes Automatic Gain Control (AGC), Acoustic Echo Cancellation (AEC), and Acoustic Noise Suppression (ANS). Supports custom optimization for scenarios such as vocals and musical instruments. |
Multi-resolution video | Layered video encoding with multiple resolutions. Supports 480p and lower, 720p and lower, and 1080p and lower (on specific devices). |
Transmission over weak networks | Precise bandwidth detection and intelligent congestion control. Tolerates a packet loss rate of up to 70%. |
Platform compatibility | Supports Android, iOS, Windows, Mac, and web browsers. For more information about system version requirements, see Limits. |
Device adaptation | Compatible with over 5,000 Android device models. Compatible with Windows 7 and later. |