[Note Edge Q&A, Help & Troubleshooting] jeep447:
Well that's not a pessimistic attitude or anything whatsoever! lol. Here's the thing... It might help to try and remember that nobody is on here getting paid to spend their time answering your questions all day long, so unfortunately it's inevitable that there will be times when people might just have to figure their problems out on their own or just be forced to wait until someone responds.. no matter how "popular" they might be.

This entire community wouldn't exist if weren't for all of the people on here who have been and are willing to spend their own free time sharing their knowledge with and helping others, so it's pretty ridiculous to sit there and act like it's a personal assault whenever nobody answers your question right away! From my experience on here people (including myself) are always more than willing to help out whenever they can (as long as the people are willing to help themselves too), but since nobody is getting paid people need to realize that it's more of a "self help" type of community than anything.

There are literally mountains of freely available information for people to search through to try to find their answers with, and with enough determination and persistence 99% of the time people could answer their own questions without ever even having to ask. So I'm definitely not trying to be rude or anything but it's just all in how you look at it.. because when people come here expecting to be handed all of the answers then they're most likely going to be disappointed and upset, but when you come here looking to help yourself instead you'd be surprised how much of a difference it makes and how rarely you'll have to ask any questions.

Anyway I'll try helping with some suggestions below since they're having the same problem too..

Ok I've actually had a similar problem in the past and I can't guarantee anything but hopefully this might help..

In my situation it turned out being "profiles" that I didn't realize were turned on, and they were causing rogue and unknown sounds to happen because they were overriding my ringer and media volume settings based on the time of day it was. So all I had to do was turn off the profiles and it solved the problem, but it depends on the rom that you're on as to whether or not profiles like that are even an option.

If not another thing I'd recommend doing (and I'm obviously not sure what all you've tried so I'm just trying to cover the bases just in case) is to get a root explorer (as long as you're rooted.. if not I'm honestly not sure what to tell ya) and navigate to the root folder .. then go to "system/media", and inside there should be a folders called ui, notification, and ringtones.. and this where all of the default notification sounds are located. I would go through and listen to each one of them (they should be .ogg files) and see if you can find a match to the one you're hearing, and if you do then you can just rename that file .bak instead of .ogg and that should stop it from playing randomly (basically a bandaid type fix).

If it's not any of the system sounds then you've basically narrowed it down to where it's most likely an app that's making the sound. If that's the case then what I'd do is go into Titanium Backup and filter it to only show "user apps" and then have it sort them by the date which they were installed, and then I'd just start going down the list looking for apps I've installed that could possibly be making the sound.. that way even if you have a general idea around when the problem started happening you can match that time frame up with apps that were installed around that time to narrow down your search (if that makes sense anyway).

Anyway that's what I would do to start at least and hopefully it helps!

Sent from a ridiculously modified ColecoVision