AudioFormat is not public in android.media.AudioFormat

I am trying to develop an Android App like Shazam. I searched how Shazam worked on Google and I found the best link to follow. Which is https://www.toptal.com/algorithms/shazam-it-music-processing-fingerprinting-and-recognition. As you can see in the link, it records the song first. But I am having the problem with its recording code cause android studio is showing error with red underline for that code. Please have a look at this code.

private AudioFormat getFormat() {

    float sampleRate = 44100;

    int sampleSizeInBits = 16;

    int channels = 1;          //mono

    boolean signed = true;     //Indicates whether the data is signed or unsigned

    boolean bigEndian = true;  //Indicates whether the audio data is stored in big-endian or little-endian order

    return new AudioFormat(sampleRate, sampleSizeInBits, channels, signed, bigEndian);

}

Is is used to format the audio recording. When I copy that code into main activity, it shows the error as follow.


When I hover the cursor the on error, it is saying "AudioFormat is not public in android.media.AudioFormat. Cannot be accessed from outside package". So please how can I fix it? The code in the link I am following is wrong? If it is, please guide me a better link. I have been searching tutorial code for Android to develop something like Shazam app. Please how can I fix it? Please help me.

Edited for Andrew Cheong's Answer

I knew why because of Cheong's answer and so I use like this

private AudioFormat getFormat() {

        float sampleRate = 44100;

        int sampleSizeInBits = 16;

        int channels = 1;          //mono

        boolean signed = true;     //Indicates whether the data is signed or unsigned

        boolean bigEndian = true;  //Indicates whether the audio data is stored in big-endian or little-endian order



        return new AudioFormat.Builder().setSampleRate(Math.round(sampleRate)).build();

    }

But as you can see in the code, I can only find setSampleRate() to set sample rate. I cannot find others method to set sampleSizeInBits, channels, signed and bigEndian. I don't know how to set them. Please how can I set the rest of the variables? Pleae help me.