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Background Music

this document primarily introduces how to use RTC Room Engine SDK to implement relevant features of background music.
Prerequisites
Before using the background music settings-related features provided by RTC Room Engine SDK, you need to log in to the SDK first.
User Guide
Start/Stop Playing Background Music
iOS
Android
You can start or stop playing background music by calling startPlayMusic and stopPlayMusic two APIs.
When calling startPlayMusic to start playing background music, you need to input a parameter in types of TXAudioMusicParam to set playback control information. TXAudioMusicParam contains following information, which you can set separately:
Enumeration Types
Description
id
Field Meaning: Music ID.
Special Instructions: The SDK allows playback of multiple music streams. Therefore, IDs are required for tagging to control the start, stop, and volume of the music.
endTimeMS
Field Meaning: Music end playback time point, in milliseconds, with 0 indicating playback to the end of the file.
isShortFile
Field Meaning: Whether the playback is a short music file.
Recommended Value:
YES: Short music files that need to be repeated.
NO: Normal music file. Default value: NO.
loopCount
Field Meaning: Number of music loops.
Recommended Value: The value range is from 0 to any positive integer. The default value is 0. 0 means play the music once; 1 means play the music twice; and so on.
path
Field Meaning: Complete path or URL address of the sound effect file. Supported audio formats include MP3, AAC, M4A, WAV.
publish
Field Meaning: Whether to transmit music to remote end.
Recommended Value:
YES: The music can be played locally while the remote user can also hear it.
NO: The anchor can only hear the music locally, and the remote audience cannot hear it. Default value: NO.
startTimeMS
Field Meaning: Music start playback time point, in milliseconds.
You can start or stop playing background music by calling startPlayMusic and stopPlayMusic two APIs.
When calling startPlayMusic to start playing background music, you need to input a parameter in types of AudioMusicParam to set playback control information. AudioMusicParam contains following information, which you can set separately:
Enumeration Types
Description
id
Field Meaning: Music ID.
Special Instructions: The SDK allows playback of multiple music streams. Therefore, IDs are required for tagging to control the start, stop, and volume of the music.
endTimeMS
Field Meaning: Music end playback time point, in milliseconds, with 0 indicating playback to the end of the file.
isShortFile
Field Meaning: Whether the playback is a short music file.
Recommended Value:
YES: Short music files that need to be repeated.
NO: Normal music file. Default value: NO.
loopCount
Field Meaning: Number of music loops.
Recommended Value: The value range is from 0 to any positive integer. The default value is 0. 0 means play the music once; 1 means play the music twice; and so on.
path
Field Meaning: Complete path or URL address of the sound effect file. Supported audio formats include MP3, AAC, M4A, WAV.
publish
Field Meaning: Whether to transmit music to remote end.
Recommended Value:
YES: The music can be played locally while the remote user can also hear it.
NO: The anchor can only hear the music locally, and the remote audience cannot hear it. Default value: NO.
startTimeMS
Field Meaning: Music start playback time point, in milliseconds.
The following is a simple example of starting/stopping playing background music:
iOS
Android
import RTCRoomEngine
import TXLiteAVSDK_Professional
﻿
let audioEffectManager = TUIRoomEngine.sharedInstance().getTRTCCloud().getAudioEffectManager()
﻿
// Start background music playback.
let musicParam = TXAudioMusicParam()
musicParam.id = 0                    // Replace with your own Music ID
musicParam.path = "path"             // Replace with the full path or URL address of the music file
musicParam.publish = true            // Transmit music to remote end
musicParam.loopCount = 0             // Replace with the number of times you need to loop playback
audioEffectManager.startPlayMusic(musicParam) { code in
    if code == 0 {
      // Playback started successfully
    } else {
      // Playback start failed.
    }
} onProgress: { progress, duration in
    // Playback progress callback.
} onComplete: { _ in
    // Playback end callback.
}
﻿
// Stop background music playback.
audioEffectManager.stopPlayMusic(musicId)  // Replace with the Music ID you need to stop.
﻿
TXAudioEffectManager audioEffectManager = TUIRoomEngine.sharedInstance().getTRTCCloud().getAudioEffectManager();
﻿
int id = 0;  // Replace with your own Music ID
String path = "path"; // Replace with the full path or URL address of the music file.
// Start background music playback.
TXAudioEffectManager.AudioMusicParam musicParam = new TXAudioEffectManager.AudioMusicParam(id, path);
musicParam.publish = true;            // Transmit music to remote end.
musicParam.loopCount = 0;             // Replace with the number of times you need to loop playback.
audioEffectManager.startPlayMusic(musicParam);
﻿
// Stop background music playback.
audioEffectManager.stopPlayMusic(id);  // Replace with the Music ID you need to stop.
Set Background Music Volume
You can set the background music volume by calling the setAllMusicVolume API and passing an Int value.
The passed-in Int value represents the volume, with a value range of 0 - 100. The following is an example of calling setAllMusicVolume to set the background music volume:
iOS
Android
import RTCRoomEngine
import TXLiteAVSDK_Professional
﻿
let audioEffectManager = TUIRoomEngine.sharedInstance().getTRTCCloud().getAudioEffectManager()
﻿
let volume = 60    // Replace with the volume you need to set
audioEffectManager.setAllMusicVolume(volume)
TXAudioEffectManager audioEffectManager = TUIRoomEngine.sharedInstance().getTRTCCloud().getAudioEffectManager();
﻿
int volume = 60;    // Replace with the volume you need to set
audioEffectManager.setAllMusicVolume(volume);
﻿
﻿

Enumeration Types	Description
id	Field Meaning: Music ID. Special Instructions: The SDK allows playback of multiple music streams. Therefore, IDs are required for tagging to control the start, stop, and volume of the music.
endTimeMS	Field Meaning: Music end playback time point, in milliseconds, with 0 indicating playback to the end of the file.
isShortFile	Field Meaning: Whether the playback is a short music file. Recommended Value: YES: Short music files that need to be repeated. NO: Normal music file. Default value: NO.
loopCount	Field Meaning: Number of music loops. Recommended Value: The value range is from 0 to any positive integer. The default value is 0. 0 means play the music once; 1 means play the music twice; and so on.
path	Field Meaning: Complete path or URL address of the sound effect file. Supported audio formats include MP3, AAC, M4A, WAV.
publish	Field Meaning: Whether to transmit music to remote end. Recommended Value: YES: The music can be played locally while the remote user can also hear it. NO: The anchor can only hear the music locally, and the remote audience cannot hear it. Default value: NO.
startTimeMS	Field Meaning: Music start playback time point, in milliseconds.