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Fixed in 2023.1.0a13



Found in




Issue ID




[Android] When DSP Buffer Size is set to 'Best latency' the audio plays significantly slower and is crackling on OnePlus 7 Pro

Platform Audio


Reproduction steps:
1. Open the attached user's project ""
2. Switch the Platform to Android
3. Connect a OnePlus 7 Pro Device
4. Build and Run for Android

Expected result: When DSP Buffer Size is set to 'Best latency' the audio does not play significantly slower and is not crackling on OnePlus 7 Pro
Actual result: When DSP Buffer Size is set to 'Best latency' the audio plays significantly slower and is crackling on OnePlus 7 Pro

Reproducible with these devices:
VLNQA00318, Oneplus 7Pro (GM1913), Android 10, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640

Not reproducible with these devices:
N/A, Samsung Galaxy S9 (SM-G960F), Android 8.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00231, Huawei HUAWEI Mate 20 Pro (LYA-L29), Android 9, CPU: HiSilicon Kirin 980, GPU: Mali-G76
VLNQA00362, Samsung Galaxy Z Fold2 5G (SM-F916U1), Android 11, CPU: Snapdragon 865 SM8250, GPU: Adreno (TM) 650
VLNQA00024, Xiaomi Mi 5 (MI 5), Android 7.0, CPU: Snapdragon 820 MSM8996, GPU: Adreno (TM) 530
VLNQA00332, Samsung Galaxy XCover4 (SM-G390F), Android 9, CPU: Exynos 7 Quad 7570, GPU: Mali-T720
N/A, Xiaomi - (Redmi Note 8 Pro), Android 9, CPU: MediaTek Helios G90T MT6785T, GPU: Mali-G76 MC4
VLNQA00004, Meizu MX5 (MX5), Android 5.0.1, CPU: MediaTek Helio X10 MT6795T, GPU: PowerVR Rogue G6200
VLNQA00099, Google Pixel XL (Pixel XL), Android 10, CPU: Snapdragon 821 MSM8996 Pro, GPU: Adreno (TM) 530
VLNQA00052, Xiaomi MI MAX (MI MAX), Android 7.0, CPU: Snapdragon 617 MSM8952, GPU: Adreno (TM) 510
iPad 9.7" 6th gen (14.4)
iPad Air 2 (11.0.3)

Reproduces on: 2019.4.28f1, 2020.3.11f1, 2021.1.11f1, 2021.2.0a19
Could not test on 2018.4.35f1 due to project breaking when downgrading

-Android logcat is attached "oneplus7pro_logcat.txt"
-Only the "Best Latency" option causes the issue
-Issue does not reproduce on Windows Standalone

  1. Resolution Note (fix version 2023.1.0a13):

    Added support for Android's AAudio engine, so on Android 8.1 and later, Unity Audio is now layered over AAudio. This fixes 4 audio bugs, related to built-in stereo speaker output, built-in vs. Bluetooth microphone selection, Microphone.Start and Microphone.Stop CPU spikes, and low-latency audio output.

Comments (3)

  1. michaelberg

    Jan 20, 2023 23:27

    Yarome, the current plan is that we will not back-port the AAudio implementation (which fixes this issue) because we want to go through a full alpha/beta test cycle to iron out new bugs that may arise before it is officially released. So, yeah, you'll have to update to 2023 to get this fix for now. I know this is not ideal. I suppose it's possible that we'll change this plan, but we're trying to be cautious with such a big code change.

  2. Yarome

    Jan 17, 2023 04:44

    Will this resolution be brought to Unity 2021 (and eventually 2022) LTS? Or will we need to upgrade to a 2023 editor version in order to take advantage of this?

  3. code-kiwi

    Sep 11, 2021 08:51

    Also getting reports from users with the OnePlus 7T

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