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Game Multimedia Engine
    Documentation

    Using HD Sound Quality

    Last updated: 2024-12-18 14:53:36
      This document describes how to access and debug the GME APIs for Unity HD voice chat room.

      Prerequisites

      Starting from GME SDK v2.9, GME SDK for Unity does not support the use of HD voice chat room by default. If your SDK is not on v2.9 or higher, the following operations are not required.

      Involved Features

      Without adaptation, the SDK for Unity lacks the following features:
      HD voice chat room. For more information, see Sound Quality Selection. Accompaniment playback. For more information, see Accompaniment in Voice Chat. Voice changing for voice chat and voice message. For more information, see Voice Changing Effect.

      SDK Update

      If you have downloaded the standard version of the SDK for Unity in the Download Guide, you need to download other library files by submitting a ticket.

      Library file replacement

      Delete the original GME library files and use the downloaded ones. The added library files are as shown below:
      
      
      

      Library files' corresponding features

      You may import only required library files according to your own needs. For example, if you only need the voice changing feature, you only need to import libgme_soundtouch.
      Library File
      Feature
      libgme_fdkaac
      1. Used to enter an SD or HD voice room.
      2. Used to play back accompaniment files in ACC format
      libgme_faad2
      Used to play back accompaniment files in MP4 format
      libgme_ogg
      Used to play back accompaniment files in OGG format
      libgme_lamemp3
      Used to play back accompaniment files in MP3 format
      libgme_soundtouch
      Used for voice changing and pitch changing

      Configuration Export

      After configuring the required library files, you need to configure the iOS dynamic library package when exporting it. For other platforms, simply export them by default.

      Unity 2019 and higher

      Configuration principle

      Create an Editor OnPostprocessBuild script and use the UnityEditor.iOS.Xcode.Extensions.PBXProjectExtensions.AddFileToEmbedFrameworks API, which will automatically copy the dynamic library to the framework directory of the final output Bundle and sign it.

      Sample code

      You can refer to the add_dylib.cs script file in the demo project and put this part of code in the Editor folder of the project as needed.
      [UnityEditor.Callbacks.PostProcessBuild(1002)]
          public  static void OnPostprocessBuild (UnityEditor.BuildTarget BuildTarget, string path){  
              if (BuildTarget == UnityEditor.BuildTarget.iOS) {
                  UnityEngine.Debug.Log ("OnPostprocessBuild add_dylib:" + path);
      #if UNITY_EDITOR_OSX || UNITY_STANDALONE_OSX
                  {
                      string projPath = UnityEditor.iOS.Xcode.PBXProject.GetPBXProjectPath (path);  
                      UnityEditor.iOS.Xcode.PBXProject proj = new UnityEditor.iOS.Xcode.PBXProject ();  
      
                      proj.ReadFromString (System.IO.File.ReadAllText (projPath));  
                      // string targetGuid = proj.TargetGuidByName (UnityEditor.iOS.Xcode.PBXProject.GetUnityTargetName ()); // 2018
                      string targetGuid = proj.GetUnityMainTargetGuid();	// 2019
      
      
                      // Delete according to the imported frameworks
                      string[] framework_names = {
                          "libgme_fdkaac.framework",
                          "libgme_lamemp3.framework",
                          "libgme_ogg.framework",
                          "libgme_soundtouch.framework"
                      };
      
                      for (int i = 0; i < framework_names.Length; i++)
                      {
                          string framework_name = framework_names[i];
                          string dylibGuid = null;
                          dylibGuid = proj.FindFileGuidByProjectPath("Frameworks/Plugins/iOS/" + framework_name);
      
                          if (dylibGuid == null) {
                              UnityEngine.Debug.LogWarning (framework_name + " guid not found");
                          } else {
                              UnityEngine.Debug.LogWarning (framework_name + " guid:" + dylibGuid);
                              proj.AddDynamicFramework (targetGuid, dylibGuid);
                              System.IO.File.WriteAllText (projPath, proj.WriteToString ());
                          }
                      }
                  }
              }
          }

      Unity below 2019

      Currently, only Unity 2019 and higher can use UnityEditor.iOS.Xcode.Extensions. You can export the UnityEditor.iOS.Xcode package from a higher version for use in a lower version, or directly decompress the attachment UnityEditorAV.iOS.XCode.zip and place it in the Editor folder of the project directory.
      
      
      
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