SimpleAudioEngine.h file not found

cocos2d-x C++
#1 
//define.cpp
#include <SimpleAudioEngine.h>

fatal error: ‘SimpleAudioEngine.h’ file not found’’’
I use Android Studio with cocos v4 c++

my settings.gradle is

include ':libcocos2dx'
project(':libcocos2dx').projectDir = new File(settingsDir, '../cocos2d/cocos/platform/android/libcocos2dx')
include ':mahjongDroid'
project(':mahjongDroid').projectDir = new File(settingsDir, 'app')

SimpleAudioEngine.h is in the cocos2d/cocos/editor-support/cocostudio folder.
How can I add cocostudio folder?

#2

in v4 you need to use Audio Engine

#3

are there any plans to add pitch shifting back to the new audio engine?
its a feature im missing from SimpleAudioEngine

#4

I am not current on what features are to be added.