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Third Party Issue

Votes

0

Found in

2020.3.37f1

2021.3.8f1

2022.1.12f1

2022.2.0b4

2023.1.0a5

2023.2.0a1

Issue ID

UUM-10891

Regression

No

[iOS] An application sound starts playing for a few seconds when Siri becomes deactivated and device volume is turned down

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How to reproduce:
1. Open the attached Unity project "SoundSystem.zip"
2. Build and Deploy the project to a device
3. Make sure that the volume is turned down on a device
4. On a device press and hold the home button (or lock button) to activate Siri
5. When Siri appears wait a few seconds for it to disappear

Expected results: No sound is playing when the Siri icon disappears
Actual results: A sound starts playing for a few seconds playing when the Siri icon disappears

Reproducible with: 2020.3.37f1, 2021.3.8f1, 2022.1.12f1, 2022.2.0b4, 2023.1.0a5

Reproduces on:
- iPad 2018 (iOS 14.6)
- VLNQA00352 - iPhone 12 Pro (MGML3ET/A), CPU: A14 Bionic, GPU: Apple designed, OS: 14.8.1

Not reproducible on:
- iPhone XR (iOS 13.4.1)

  1. Resolution Note:

    While we can reproduce this issue, and it is definitely a bug, it appears to be an Apple / iOS issue. There is no way for Unity to override the system volume or mute settings, so these should be respected by the device's audio system. Unfortunately, there appears to be a timing window where these settings are temporarily ignored.

    Thank you for the bug report.

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