Ionic Native Audio not working

I am trying to run an audio on a specific event when app is open (foreground). When app is not running (background or force closed) this is taken care of by push notification

This is what i am doing in my constructor

this.platform.ready().then(() => {
    this.nativeAudio.preloadSimple('uid134199', 'audio/newOrder.mp3'); = {
        key: 'uid134199',
        asset: 'audio/newOrder.mp3',
        type: 'native'

This is what i do at that particular event => {
}, (err) => {

Does not work whatsoever, neither success alert, nor failure alert.