code: public static synchronized boolean ensureOpus()
      {
          if (initialized)
              return audioSupported;
          initialized = true;
          try
          {
              if (OpusLibrary.isInitialized())
                  return audioSupported = true;
              audioSupported = OpusLibrary.loadFromJar();
          }
          catch (Throwable e)
          {
              handleException(e);
          }
          finally
          {
              if (audioSupported)
                  LOG.info("Audio System successfully setup!");
              else
                  LOG.info("Audio System encountered problems while loading, thus, is disabled.");
          }
          return audioSupported;
      }
docs: Checks whether the opus binary was loaded, if not it will be initialized here.
  <br>This is used by JDA to check at runtime whether the opus library is available or not.
  
  @return True, if the library could be loaded.