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RTC Engine
Overview
  • Web
    • Run Sample Demo
    • SDK Quickstart
    • Basic Features
      • Screen Sharing
      • Live Streaming
      • Media Device
      • Audio Volume
      • Set Encoding Profile
      • Detect Network Quality
      • Detect Capabilities
    • Advance Features
      • Enable AI Denoiser
      • Enable Audio Mixer
      • Enable Watermark
      • Enable Beauty and Effects
      • Data Messages
      • Custom Capturing and Rendering
    • API List
    • Released Notes
    • Supported Platforms
    • Web FAQs
      • Optimize Multi-Person Video Calls
      • Handle Autoplay Restriction
      • Handle Firewall Restriction
      • Others
  • Android
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Setting Video Quality
      • 10.Rotating Videos
    • Testing Newwork Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • TRTCCloud
      • TRTCStatistics
      • TRTCCloudListener
      • TXAudioEffectManager
      • TXBeautyManager
      • TXDeviceManager
      • Type Definition
      • Deprecated Interface
      • Error Codes
    • Solution
      • Real-Time Chorus (TUIKaraoke)
        • Quick Integration
        • Implementation Steps
        • Song Synchronization
        • Lyric Synchronization
        • Vocal Synchronization
        • Mixing Stream Solution
        • TRTCKaraoke APIs
        • FAQs
    • Release Notes
  • iOS
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Setting Video Quality
      • 10.Rotating Videos
    • Testing Network Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • TRTCCloud
      • TRTCCloudDelegate
      • TRTCStatistics
      • TXAudioEffectManager
      • TXBeautyManager
      • TXDeviceManager
      • Type Definition
      • Deprecated Interface
      • ErrorCode
    • Solution
      • Quick Integration
      • Implementation Steps
      • Song Synchronization
      • Lyric Synchronization
      • Vocal Synchronization
      • Mixing Stream Solution
      • TRTCKaraoke APIs
      • FAQs
    • Release Notes
  • macOS
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Sharing Computer Audio
      • 10.Setting Video Quality
      • 11.Rotating Videos
    • Testing Hardware Devices
    • Testing Network Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • TRTCCloud
      • TRTCCloudDelegate
      • TRTCStatistics
      • TXAudioEffectManager
      • TXBeautyManager
      • TXDeviceManager
      • Type Definition
      • Deprecated Interface
      • ErrorCode
      • Release Notes
    • Release Notes
  • Windows
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Setting Video Quality
      • 10.Rotating Videos
    • Testing Hardware Devices
    • Testing Network Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • ITRTCCloud
      • ITRTCStatistics
      • TRTCCloudCallback
      • ITXAudioEffectManager
      • ITXDeviceManager
      • Type Definition
      • Deprecated Interface
      • Error Codes
    • Release Notes
  • Electron
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Sharing Computer Audio
      • 10.Setting Video Quality
      • 11.Rotating Videos
    • Client APIs
      • Overview
      • Error Codes
  • Flutter
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Sharing Computer Audio
      • 10.Setting Video Quality
      • 11.Rotating Videos
    • Client APIs
      • Overview
      • Error Codes
  • Unity
    • Integration
      • 1.API Examples
      • 2Importing the SDK
    • Client APIs
      • Overview
      • Error Codes
  • Qt
    • Integration
      • 1.Importing the SDK
  • Overview
    • Overview
  • Concepts
  • Features
  • Performance Statistics
  • Pricing
    • RTC-Engine Packages
    • Billing of On-Cloud Recording
    • Billing of MixTranscoding and Relay to CDN
    • Billing Explanation for Subscription Package Duration
    • Billing of Monitoring Dashboard
    • Free Minutes
    • Pay-As-You-Go
  • Tencent RTC Quickplay: Experience Ultimate Real-Time Audio and Video Interaction!
  • FAQs
    • FAQs for Beginners
    • Migration Guide
      • Twilio Video to Tencent RTC
      • Billing
      • Features
      • UserSig
      • Firewall Restrictions
      • How to Downsize Installation Package
      • TRTCCalling for Web
      • Audio and Video Quality
      • Others
RTC Engine

Vocal Synchronization

Introduction to vocal and song synchronization

Due to the jitter buffer of local vocal collection, the jitter buffer of song playback mixing, and the certain GAP between sound playback to the human ear and singing, when the singer sings along with the lyrics and BGM, the remote audience feels that there is a certain delay in the BGM playback, vocals, and lyrics. The chorus scheme uses low-latency AAudio collection inside the TRTC SDK. Specifically, you only need to enable the chorus mode and low-latency mode after entering the room.

Specific code implementation

Enable chorus mode

// The main instance (vocal instance) enables chorus mode (reducing buffer interval and audio redundancy protection)
mTRTCCloud.callExperimentalAPI("{\"api\":\"enableChorus\",\"params\":{\"enable\":1,\"audioSource\":0}}");
// The sub-instance (accompaniment instance) enables chorus mode (reducing buffer interval and audio redundancy protection)
subCloud.callExperimentalAPI("{\"api\":\"enableChorus\",\"params\":{\"enable\":1,\"audioSource\":1}}");
Note:
Parameter settings for the experimental interface enableChorus to enable chorus mode:
audioSource:0(vocals).
audioSource:1 (accompaniment).

Enable low-latency mode (high-performance audio AAudio)

// The main instance (vocal instance) enables high-performance audio AAudio
mTRTCCloud.callExperimentalAPI("{\"api\":\"setLowLatencyModeEnabled\",\"params\":{\"enable\":1}}");
// The sub-instance (accompaniment instance) enables high-performance audio AAudio
subCloud.callExperimentalAPI("{\"api\":\"setLowLatencyModeEnabled\",\"params\":{\"enable\":1}}");