Feature | Description | Common Use Cases | Billing |
Co-anchoring |
Smooth mic on/off without waiting |
Interactive live streaming, online class, chat room |
Basic service fees are charged for using the co-anchoring feature. |
Cross-room communication |
Anchors from different rooms can communicate with each other while audience members watch. |
Showroom streaming, cross-room communication, cross-room class |
Basic service fees are charged for using the cross-room communication feature. |
Screen sharing |
Sharing the desktop, a window (for example, a Microsoft PowerPoint window), or a portion of the desktop |
Online class, slideshow sharing, remote assistance |
Basic service fees are charged for using the screen sharing feature. |
Server-side local recording |
Server-side recording relies on the Linux SDK, which is not commercially available yet. If you have questions about the SDK or want to use it, please contact us at colleenyu@tencent.com. |
Audiovisual recording, archiving, compliance |
Basic service fees are charged for using the server-side local recording feature. |
On-cloud recording |
On-cloud recording relies on the relay-to-CDN feature and leverage the capabilities of CSS to record live streaming sessions (audio/video). Recording files are saved securely and in real time to VOD. |
Audiovisual recording, archiving, compliance |
On-cloud recording is a value-added service and incurs additional fees. |
On-Cloud MixTranscoding |
TRTC uses an MCU cluster to mix and transcode the audio and video streams in a room and publishes the mixed stream to CSS for on-cloud recording or CDN playback. |
Stream mixing, recording format conversion |
On-Cloud MixTranscoding is a value-added service and incurs additional fees. |
High audio quality |
48 kHz sample rate, end-to-end 192 Kbps bitrate, and dual channels for a clear and immersive audio interaction experience |
Audio call, video call, interactive live streaming, audio chat room, high-audio-quality FM radio, music class, karaoke, online class |
Free of charge |
High video quality |
720p/1080p HD video |
Video call, interactive live streaming, online class |
Free of charge |
3A processing |
Leveraging the industry-leading 3A (acoustic echo cancellation, active noise suppression, automatic gain control) technologies of Tencent Ethereal Audio Lab, TRTC can ensure audio quality even when multiple people speak at the same time or in the presence of background noises. |
All audio scenarios |
Free of charge |
AI-based noise suppression |
Removing inconstant noises that traditional noise suppression technologies cannot handle, such as cough, sneeze, and car horn |
Audio call, video call, interactive live streaming, audio chat room, online class |
Apply for beta testing |
Basic beauty filters |
Basic beautification features, including skin brightening, skin smoothing, blush, and basic filters |
Video call, interactive live streaming, online class |
Free of charge |
Background music |
Using local music files in formats such as MP3, AAC, and WAV as background music |
Audio call, video call, interactive live streaming, online class, audio chat room, karaoke, FM radio |
Free of charge |
Audio effects |
Audio effects such as applauding, cheering, whistling, and booing |
Audio call, video call, interactive live streaming, audio chat room, karaoke, FM radio |
Free of charge |
Publishing system audio |
Publishing the audio you play locally, for example, the music played by QQ Music on your computer, to remote users |
Interactive live streaming, online class, audio chat room, FM radio |
Free of charge |
Voice changing |
Voice changing effects such as little girl, middle-aged man, and metal |
Audio call, video call, interactive live streaming, audio chat room, karaoke, FM radio |
Free of charge |
Reverb |
Reverb effects such as karaoke, small room, hall, and bathroom |
Audio call, video call, interactive live streaming, audio chat room, karaoke, FM radio |
Free of charge |
Volume callback |
Callback of audio volumes, which you can use to display audio waveforms or volume reminders |
Audio call, video call, audio chat room, FM radio, karaoke, and speech detection |
Free of charge |
In-ear monitoring |
Recording local audio and playing it back in the local user’s earphones, usually for detection of speech errors or pitch control during singing |
Interactive live streaming, showroom streaming, karaoke |
Free of charge |
Custom audio data |
Callback of raw audio for custom processing. You can connect the SDK to non-standard external devices or use local audio files. |
Non-standard device connection, custom audio effect, speech processing, speech recognition |
Free of charge |
Custom video data |
Custom video sources and renderers. You can use non-camera video sources such as video files, external devices, and third-party sources. |
Custom beauty filters, custom data sources, multi-device management, video recognition, image processing |
Free of charge |
SEI message |
Embedding custom information such as lyrics and questions as SEI frames into published video streams |
Karaoke, live quiz, interactive live streaming |
Free of charge |
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