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Tencent Real-Time Communication
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    Features

    Last updated: 2024-04-02 16:20:56
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      Basic Features

      Feature
      Description
      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, dual-channel 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 members
      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 members
      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
      Uses a recording MCU cluster to record the upstream audio and video streams in a room either separately or after mixing. Recording files are saved securely and in real time to VOD.
      Dual-channel recording, archiving, compliance
      On-cloud recording is a value-added service and incurs additional fees.
      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.
      Uses a relay and transcoding cluster to convert UDP streams into RTMP streams in the cloud, pushes the streams to CSS, and distributes them via CDNs. This feature is also called "Relay to CDN".
      Interactive live streaming, live sharing, large-scale conferencing, live stream viewing by remote users
      Relay to CDN is a value-added service and is charged by CSS. For details, see Relay to CDN > Billing.

      Advanced Features (Paid)

      Feature
      Description
      Use Cases
      Billing
      AI noise suppression
      Removes intermittent noises that traditional noise suppression technologies cannot handle, such as cough, sneeze, and car horn. If Chat features are used, noise suppression can work for both TRTC calls and local recordings.
      Audio call, video call, interactive live streaming, audio chat room, online class
      Buy a TRTC monthly package to unlock these features.
      Less stutter under poor network conditions
      Reduces stutter rate and loading time under poor network conditions.
      Audio call, video call, interactive live streaming, audio chat room, online class
      Publishes and plays streams using RTMP.
      Online class, sports event streaming
      3D spatial audio
      Delivers different audio effects according to the face orientation of a virtual anchor and the orientation and location of audio sources to enable a spatial and life-like sound experience.
      Audio chat room, karaoke room, FM radio, virtual concert, online gaming
      Scaled video coding
      Leverages the O264RT coding technology of Tencent Media Lab to reduce loading time, notably cut bandwidth consumption, and improve compatibility with devices.
      Video call, online class, interactive live streaming
      Region of interest coding
      Reduces CPU usage and delivers a video experience with the lowest possible latency and highest possible quality in most scenarios.
      Video call, online class, interactive live streaming
      The anchor can publish videos and share the screen at a resolution of 2K/4K (only 2K+ is supported on PC and web currently).
      Video call, online class, interactive live streaming
      Voice Changer Effect
      Voice changer effect can be applied to human voices, and through acoustic algorithm, the voices are processed for a second time to obtain a timbre different from the original sound.
      Audio chat room, karaoke room, FM radio, virtual concert, online games, etc.

      Other Advanced Features

      Feature
      Description
      Use Cases
      Billing
      Anchor-audience communication
      Audience members can turn their mics to communicate with the anchor. The mic-on/off process is smooth and requires no waiting.
      Interactive live streaming, online class, chat room
      The feature itself is free, but audio/video call or live streaming durations will be generated when you use this feature, so TRTC basic service fees will be incurred.
      Cross-room communication
      Anchors from different rooms can communicate with each other while audience members watch.
      Showroom streaming, cross-room match, cross-room class
      The feature itself is free, but audio/video call or live streaming durations will be generated when you use this feature, so TRTC basic service fees will be incurred.
      Screen sharing
      The anchor can share the desktop, a window (for example, a Microsoft PowerPoint window), or a portion of the desktop to others.
      Online class, slide sharing, remote assistance
      The feature itself is free, but audio/video call or live streaming durations will be generated when you use this feature, so TRTC basic service fees will be incurred.
      Local server 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.
      Dual-channel recording, archiving, compliance
      The feature itself is free, but audio/video call or live streaming durations will be generated when you use this feature, so TRTC basic service fees will be incurred.
      High sound 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
      High video quality
      720/1080p video quality
      Video call, interactive live streaming, online class
      Free
      3A processing
      Leverages the industry-leading 3A (acoustic echo cancellation, active noise suppression, automatic gain control) technologies of Tencent Ethereal Audio Lab to deliver high audio quality even when multiple people speak at the same time or in the presence of background noises.
      All audio scenarios
      Free
      Basic beauty filters
      Basic beautification effects, including skin brightening, skin smoothing, rosy skin, and basic filters
      Video call, interactive live streaming, online class
      Free
      BGM
      The anchor can play an audio file in MP3, AAC, or WAV format as background music during a call or live stream.
      Audio call, video call, interactive live streaming, online class, audio chat room, karaoke room, FM radio
      Free
      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
      Publishing computer audio
      The anchor can publish the audio they play locally, for example, the music played by QQ Music on their computer, to remote users.
      Interactive live streaming, online class, audio chat room, FM radio
      Free
      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
      Reverb
      Reverb effects such as karaoke, small room, hall, and shower room
      Audio call, video call, interactive live streaming, audio chat room, karaoke, FM radio
      Free
      Audio volume callback
      Callback of audio volumes, which you can use to display audio waveforms or show volume reminders
      Audio call, video call, audio chat room, FM radio, karaoke, and speech detection
      Free
      In-ear monitoring
      Records local audio and plays 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
      Custom audio data
      Callback of raw audio captured from a non-standard external device or a local audio file for custom processing.
      Non-standard device connection, custom audio effect, speech processing, speech recognition
      Free
      Custom video data
      Custom video sources (such as video files, external devices, and third-party data sources) and renderers
      Custom beauty filters, custom data sources, multi-device management, video recognition, image processing
      Free
      SEI message
      Embeds custom information such as lyrics and questions as SEI frames into published video streams.
      Karaoke, live quiz, interactive live streaming
      Free
      

      Extended Features

      Note
      Extended features are provided by other Tencent Cloud products and are charged according to the billing standards of the corresponding products.
      Feature
      Description
      Use Cases
      Billing
      Chat
      You can use the capabilities of Tencent Cloud Chat, including one-to-one chat, group chat, and chat rooms with no upper limit on the number of users, to implement features such as chat, comments, on-screen comments, gift sending, and liking.
      You can also use Chat to implement signaling-based interaction, call invitations, and user counting.
      Online customer service, interactive live streaming, interactive classroom, remote training
      These features incur Chat fees. For details, see Pricing.
      AI 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
      This feature incurs Tencent Effect SDK fees.
      
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