fix(a32nx/sound): boris january sound fixes

[BravoMike99]

Fixes #[issue_no]

Summary of Changes

Small sound fixes from boris after the gpws sound update

Screenshots (if necessary)

References

Additional context

Discord username (if different from GitHub): bruno_pt99

Testing instructions

Check that the volume of the announcements is not too loud compared to master.
Check that the linked toilet flush sound issue does not play (https://discord.com/channels/738864299392630914/785976111875751956/1464002332306964592)

How to download the PR for QA

Every new commit to this PR will cause new A32NX and A380X artifacts to be created, built, and uploaded.

1. Make sure you are signed in to GitHub
2. Click on the Checks tab on the PR
3. On the left side, find and click on the PR Build tab
4. Click on either flybywire-aircraft-a320-neo, flybywire-aircraft-a380-842 (4K) or flybywire-aircraft-a380-842 (8K) download link at the bottom of the page

[tracernz]

PCKs should go in large-files?

[BravoMike99]

PCKs should go in large-files?

Changed, should we also delete them from the main repo while at it?

[tracernz]

PCKs should go in large-files?

Changed, should we also delete them from the main repo while at it?

Yes, this PR should delete them and update the submodule ref.

[BravoMike99]

PCKs should go in large-files?

Changed, should we also delete them from the main repo while at it?

Yes, this PR should delete them and update the submodule ref.

Done, and also updated with the latest files.

[tracernz]

LGTM. Once you’ve merged the large-files, you can update the submodule ref to the master commit there are then this can be approved.

[ghostxyz990]

Quality Assurance Trainee Report

Discord Username : adb_1872
Object of testing : #10495
Aircraft : A32NX
Simulator : 2020
Tier of Testing : 1
Date : 25/01/2026

Testing Process:
Check that the volume of the announcements is not too loud.
Check that the linked toilet flush sound issue does not play

Testing Results:
Failed

Negatives:
toilet flush still plays, announcements are also quite loud

Conclusions:

Media:

[ghostxyz990]

Quality Assurance Trainee Report

Discord Username : adb_1872
Object of testing : #10495
Aircraft : A32NX
Simulator : 2020
Tier of Testing : 1
Date : 29/01/2026

Testing Process:
Check that the volume of the announcements is not too loud compared to master.
Check that the linked toilet flush sound issue does not play

Testing Results:
Failed

Negatives:
Announcements are fine IMO, but the toilet flush still plays occasionally

Conclusions:

Media: