How to stop sound using button?

Here is a thread on stopping  asound with Actionscript:
https://community.adobe.com/t5/animate/stop-sound-with-action-script/m-p/2347938

I tend to use Javascript and find the following an easy way to start and stop a sound:
If the audio is imported into the FLA file, give the audio a linkage name in the library. This is different from the file name:
To play the sound with a linkage name of - music
createjs.Sound.play("music");

and to stop the audio:
createjs.Sound.stop();

or to play a sound external to the FLA
var myAudio = new Audio("music.mp3'");
myAudio.play();

To stop the sound:
soundPlayer.pause();
soundPlayer.currentTime = 0;

"On the 1st layer (my first page) I have buttons to goto the specific layer (Page)"

You can't go to layers in Animate. That's conceptual nonsense. You can go to frames. If you've organized your content so that all your pages are individual layers of the same timeline, you're going to have nothing but trouble.

All your pages should be in individual movieclips, and each movieclip should be in its own frame on the timeline.

Hi.

Your sounds should be distributed in labels or frames.

Here is a sample of how you can play sounds within a Movie Clip.

AS3 code:

import flash.events.MouseEvent;

var currentSound:String;

function playSound(e:MouseEvent):void
{
	var index:uint = uint(e.target.name.replace("soundButton", "")); // here we remove the suffix "soundButton" from the name so only the number in the name is left
	currentSound = "sound" + index; // this name is used by the sounds MovieClip
	sounds.gotoAndPlay(2); // we send the playhead to frame 2 so the current sound playing within that Movie Clip will be stoped before playing the next one
}

soundButton0.addEventListener(MouseEvent.CLICK, playSound);
soundButton1.addEventListener(MouseEvent.CLICK, playSound);

And this is the structure of the sounds Movie Clip:

The second and the third frames in the sounds layer are responsible for stopping the current sound.

FLA / source / code / files:

https://github.com/joao-cesar/adobe/tree/master/animate%20cc/as3/play_sounds_in_movie_clip

It's a very simple approach and of course it can be improved. If you need more control, you will probably need to use AS3 to play and control the sounds.

I hope this helps.

Regards,

JC