The first step is to open the music and click "Main Menu" - "Sound Effects Plug-in".

Step 2. In the "Sound Effect Plug-in Settings" interface, if you have not installed the sound effect plug-in, click "Get Plug-in" to search and install it. After that, the browser will jump to the corresponding web page. Just find the plug-in you like and download it.

The third step is to click on the "Click here to add plug-in" column to select and add it.

Step 4. After the addition is completed, it is turned on by default. Next, you can find that the sound effect of the song has changed. It sounds very reverberating and lingering (echo double tone). Click on the corresponding sound effect. The "Close" button can turn off the corresponding sound effect.