That’s a great demo project. It will make the perfect bug report. Please use the Report a Bug link and provide the zip file with your submission and provide a good description. This definitely looks like a bug, or at least the documentation needs updated.
Rob
I have been receiving complaints from users that the sound controls stopped working when they updated to iOS 11.3.
It seems that the method to set master volume control with no channel, ie.
audio.setVolume(0)
is not working on this version of iOS.
A fix would be great since implementing master volume on a per-channel basis would be very fiddly with things fading in/out etc…
I’ve updated the bug report with a link the the forum and it’s apparent iOS 11.3 related change.
Rob
Affects some android devices too!
Are we going to have a fix soon?
Thank you!
Daily build 2018.3297 should address this on Apple at least. We were unaware of this impacting Android. However, we recommend 3301 at a minimum because of an Android build issue with Android 4.1 and earlier.
Rob
Great, thank you!
@PewPew,
I haven’t had a chance to update and am using 2018.3297. That said, I’m not seeing an issue with audio on Android.
I made a test app:
Source: https://github.com/roaminggamer/RG_FreeStuff/raw/master/AskEd/2018/05/audioTest.zip
APK: https://github.com/roaminggamer/RG_FreeStuff/raw/master/AskEd/2018/05/audioTest_APK.zip
Please try the app and see if you and I are doing something different. If so, please add a test to the app or change one of the tests to duplicate your issue, then share a zip file of the updated test here.
To share a zip,
Make a post.
Click ‘More Reply Options’ below and to right
Attach zip file and upload it using new buttons exposed by step 2
Hello roaminggamer!
I wish it was that simple!
The problem was in specific devices (which I don’t own) with specific os versions.
Daily build 2018.3297 solved it though 
Thank you!