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Features

Last updated: 2022-09-28 14:28:20

    Basic Features

    Feature
    Description
    Common Use Cases
    Billing
    Video call
    
    720p/1080p one-to-one or group video calls
    Each room allows up to 300 concurrent users, and up to 50 of them can turn their cameras on at the same time.
    
    One-to-one video calls, video conferences with up to 300 participants, online medical consultation, video chat, video customer service, video interviews, audiovisual recording, online insurance claim settlement, and video-based party games
    Audio call
    
    One-to-one or group audio calls, which support 48 kHz sampling and dual channels
    Each room allows up to 300 concurrent users, and up to 50 of them can keep their mics on at the same time.
    
    One-to-one or group audio calls, voice chat, audio conferences, audio customer service, and audio-based party games
    Interactive video streaming
    
    Video communication between anchors and audience
    Cross-room anchor communication
    Smooth mic on/off without waiting; anchor latency less than 300 ms
    No upper limit on the cumulative number of co-anchoring users in a room; up to 50 users can keep their mics on at the same time.
    Streaming to up to 100,000 concurrent users and a playback latency as low as 1,000 ms in the low-latency live streaming mode
    No upper limit on audience size in the CDN live streaming mode
    
    Low-latency live video streaming, interactive classrooms with up to 100,000 participants, live video competitions, video dating, remote training, large-scale conferences
    Interactive audio streaming
    
    Audio communication between anchors and audience
    Cross-room anchor communication
    Smooth mic on/off without waiting; anchor latency less than 300 ms
    No upper limit on the cumulative number of co-anchoring users in a room; up to 50 users can keep their mics on at the same time.
    Streaming to up to 100,000 concurrent users and a playback latency as low as 1,000 ms in the low-latency live streaming mode
    No upper limit on audience size in the CDN live streaming mode
    
    Low-latency live audio streaming, live audio co-anchoring, live audio competitions, audio chat rooms, audio dating, karaoke rooms, FM radio
    

    Advanced Features

    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
    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
    

    Extended Features

    explain
    Extended features are provided by other Tencent Cloud products and are charged according to the billing standards of the corresponding products.
    Feature
    Description
    Common Use Cases
    Billing
    CDN live streaming
    TRTC uses relaying and transcoding clusters to convert its UDP audio/video streams into RTMP streams in the cloud, which are then pushed to the standard live streaming system and distributed through CDNs to the audience.
    Interactive live streaming, live sharing, large-scale conferencing, live stream viewing by remote users
    CDN live streaming is charged by CSS.
    IM
    You can use the capabilities of IM, including one-to-one chat, group chat, and chat rooms with no upper limit on user number, to implement features such as chat, comments, and sending on-screen comments, gifts, and likes.
    You can also use IM for signaling-based interaction, call invitations, and user counting.
    Video customer service, interactive live streaming, interactive classroom, remote training
    IM features are charged by IM. For details, see Pricing.
    AI-based beauty filters
    Diverse effects enabled by face recognition technologies, such as AI-based beautification, makeup effects, facial feature adjustment, and green screen keying
    Video call, interactive live streaming, showroom streaming
    AI-based beauty filters are charged by Tencent Effect SDK.
    
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