weird sound clip plays randomly. how to track/find it. was I hacked?

Samsung Note 8 running Android b. 9 here is a screenshot of SW info: My Android is playing weird 5-10 sec sound clip at random times. It sounds like a combo of a hippo and then a slot machine paying out winnings. But I can't figure out where the sound is coming from. I've turned off notifications for all apps, and even made the default android notification SILENT. But, it's still happening several times a day. Is there any way /software I could install to watch the OS and figure out /teach where this is coming from... Or at least where it's stored so I can at least delete it. I'm worried it might be some malware. But I've scanned using lookout several times. UPDATE: --- per Suggestion, I installed/used ADB on my MacOS Catalina & got some info: 1. first took care of brew: * brew update * brew upgrade * brew cleanup * brew doctor 1. installed ADB on my Mac: * brew install android-platform-tools 1. checked to see if ADB could see my phone, ran adb devices ==> actually got a weird error the first time: > adb server version (36) doesn't match this client (41); killing... > * daemon started successfully > > List of devices attached > ce071827a99a952b057e device 1. ***somehow*** fixed this, by doing nothing more than running the following commands a few times: * adb * adb devices * which adb * adb devices * whereis adb 1. ***After that***, I tried adb devices again, this time I got: > List of devices attached > ce071827a99a952b057e device 1. then ran adb shell dumpsys audio ==> huge dump, so trimmed it - with a few pre-steps in case I was going to have to run this a few times: 1. ran adb shell and got this (Android OS shell?) prompt: **greatqlte:/ $** ==> then ran to rim results/narrow the time a bit: 1. **greatqlte:/ $** dumpsys audio | grep "04-28 18:0."

04-28 18:00:02:105 requestAudioFocus() from uid/pid 10009/6846 clientId=android.media.AudioManager@5492af0 callingPack=com.android.systemui req=3 flags=0x0 sdk=28
       04-28 18:00:04:680 abandonAudioFocus() from uid/pid 10009/6846 clientId=android.media.AudioManager@5492af0
       04-28 18:00:01:954 new player piid:107767 uid/pid:10009/6846 type:android.media.MediaPlayer attr:AudioAttributes: usage=USAGE_UNKNOWN content=CONTENT_TYPE_UNKNOWN flags=0x0 tags= bundle=null
       04-28 18:00:01:955 player piid:107767 new AudioAttributes:AudioAttributes: usage=USAGE_NOTIFICATION_EVENT content=CONTENT_TYPE_UNKNOWN flags=0x0 tags= bundle=null
       04-28 18:00:01:959 player piid:107767 has OP_PLAY_AUDIO:true in uid:10009
       04-28 18:00:02:611 player piid:107767 state:started uid:10009
       04-28 18:00:02:617 releasing player piid:107727
       04-28 18:00:04:671 player piid:107767 state:stopped uid:10009
       04-28 18:02:31:090 new player piid:107775 uid/pid:1000/3362 type:android.media.MediaPlayer attr:AudioAttributes: usage=USAGE_UNKNOWN content=CONTENT_TYPE_UNKNOWN flags=0x0 tags= bundle=null
       04-28 18:02:31:151 player piid:107775 new AudioAttributes:AudioAttributes: usage=USAGE_NOTIFICATION content=CONTENT_TYPE_SONIFICATION flags=0x0 tags= bundle=null
       04-28 18:02:31:152 player piid:107775 has OP_PLAY_AUDIO:true in uid:1000
       04-28 18:02:31:221 player piid:107775 state:started uid:1000
       04-28 18:02:32:923 player piid:107775 state:stopped uid:1000
       04-28 18:02:32:926 releasing player piid:107775
       04-28 18:05:46:607 new player piid:107783 uid/pid:1000/3362 type:android.media.MediaPlayer attr:AudioAttributes: usage=USAGE_UNKNOWN content=CONTENT_TYPE_UNKNOWN flags=0x0 tags= bundle=null
       04-28 18:05:46:685 player piid:107783 new AudioAttributes:AudioAttributes: usage=USAGE_NOTIFICATION content=CONTENT_TYPE_SONIFICATION flags=0x0 tags= bundle=null
       04-28 18:05:46:687 player piid:107783 has OP_PLAY_AUDIO:true in uid:1000
       04-28 18:05:46:822 player piid:107783 state:started uid:1000
       04-28 18:05:48:580 player piid:107783 state:stopped uid:1000
       04-28 18:05:48:596 releasing player piid:107783
       04-28 18:05:52:569 player piid:106799 state:started uid:1000

1. then I looked for packages that matched?? with: **greatqlte:/ $** cmd package list packages -U | grep "10009"

package:com.samsung.android.app.aodservice uid:10009
       package:com.sec.android.easyonehand uid:10009
       package:com.sec.android.cover.ledcover uid:10009
       package:com.samsung.desktopsystemui uid:10009
       package:com.android.systemui uid:10009