The sound does not play on a mobile device on the HTML platform.

[megalanthus]

Expected behaviour

When starting a sound, the sound is not played on a mobile device on the HTML platform.

Actual behaviour

If the sound starts playing after a click and a pause of 0.5 seconds, then it plays normally.

Steps to reproduce

Test project attached
sound_bug.zip

Note

console:

Workaround:

console:

---

Build time	2023-10-06T10:03:05.754106
Defold channel	editor-alpha
Defold editor sha	3584a33
Defold engine sha	d9e9c49
Defold version	1.6.0
GPU	NVIDIA GeForce GTX 1060 3GB/PCIe/SSE2
GPU Driver	4.6.0 NVIDIA 536.23
Java version	17.0.5+8
OS arch	amd64
OS name	Windows 10
OS version	10.0

[britzl]

I believe the input has to be fully processed by the engine AND the browser before you are allowed to play sounds.

What if you do it on action.released? The only other option is to add a timer, or take a look at defos.on_interaction() / defos.on_click() (https://github.com/subsoap/defos)

[megalanthus]

I believe the input has to be fully processed by the engine AND the browser before you are allowed to play sounds.

What if you do it on action.released? The only other option is to add a timer, or take a look at defos.on_interaction() / defos.on_click() (https://github.com/subsoap/defos)

The thing is that the sound is not played not only that was launched first, but also any other sounds! Absolutely everything in the entire project! Another question arises, why does this not happen on a desktop PC?
Versions 1.5 and below do not have this problem. Yes, there is a click if the sound is started before the user takes action, but the sound is guaranteed to work!

I tried playing the sound after action.released and everything works as expected. But there are still some doubts about whether in this case it is guaranteed to work for everyone and everywhere?

[Insality]

The same issue

I updated the game from 1.5.0 to the 1.6.0 Defold version and sounds are not playing in mobile HTML
Rollback to 1.5.0 - sounds are good and playing

[britzl]

Most likely related to the Emscripten update and use of their OpenAL wrapper. Related:

• Audio does not start after a touch event emscripten-core/emscripten#19763
• there is no sound when play sound in safari by openal  emscripten-core/emscripten#15883

[AGulev]

fixed in beta with #8140
Should be available in 1.6.1 beta in 1-2h