[GH-ISSUE #3291] [APP BUG]: Audio has brief cut offs due to frequent SDL queue overflows (on different game) #1016

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opened 2026-02-27 21:09:28 +03:00 by kerem · 9 comments
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Originally created by @ImprovingRigmarole on GitHub (Jul 22, 2025).
Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/3291

Checklist

  • I have searched for a similar issue in this repository and did not find one.
  • I am using an official build obtained from releases or updated one of those builds using its in-app updater.

Describe the Bug

Greetings,

I've found those issues : #1717 and #2015 which seem related, but although they're closed, I get the same error in another game.

My setup is the following :

  • shadPS4 v0.10.0
  • game is CUSA01290

I'm getting the exact same symptoms, although clearly not as severe as in #1717.
The problem occurs often enough to be noticeable, every time I think I've heard it, I check log and can see that indeed it has appeared.

[Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (61440 queued, 61440 threshold), clearing.
[Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (61440 queued, 61440 threshold), clearing.
[Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (62464 queued, 61440 threshold), clearing.
[Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (61440 queued, 61440 threshold), clearing.

I also get quite a lot of

[Core] <Error> stubs.cpp:42 CommonStub: Stub: scePthreadCancel (nid: qBDmpCyGssE) called, returning zero to 0x8006b1121

but not sure it's related, and doesn't seem to be correlated enough to the audio warning log...

Please let me know if you have any tests, settings, or different builds I could try to help you figure the problem !

Reproduction Steps

Run the game CUSA01290, not sure if the problem occurs in title screen nor select menu, but definitely occurs during gameplay.

Expected Behavior

No response

Specify OS Version

Windows 10

CPU

AMD Ryzen 7 5700X

GPU

NVIDIA RTX 3060

Amount of RAM in GB

32 GB

Originally created by @ImprovingRigmarole on GitHub (Jul 22, 2025). Original GitHub issue: https://github.com/shadps4-emu/shadPS4/issues/3291 ### Checklist - [x] I have searched for a similar issue in this repository and did not find one. - [x] I am using an official build obtained from [releases](https://github.com/shadps4-emu/shadPS4/releases) or updated one of those builds using its in-app updater. ### Describe the Bug Greetings, I've found those issues : #1717 and #2015 which seem related, but although they're closed, I get the same error in another game. My setup is the following : - shadPS4 v0.10.0 - game is CUSA01290 I'm getting the exact same symptoms, although clearly not as severe as in #1717. The problem occurs often enough to be noticeable, every time I think I've heard it, I check log and can see that indeed it has appeared. ``` [Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (61440 queued, 61440 threshold), clearing. [Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (61440 queued, 61440 threshold), clearing. [Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (62464 queued, 61440 threshold), clearing. [Lib.AudioOut] <Warning> sdl_audio.cpp:64 Output: SDL audio queue backed up (61440 queued, 61440 threshold), clearing. ``` I also get quite a lot of ``` [Core] <Error> stubs.cpp:42 CommonStub: Stub: scePthreadCancel (nid: qBDmpCyGssE) called, returning zero to 0x8006b1121 ``` but not sure it's related, and doesn't seem to be correlated enough to the audio warning log... Please let me know if you have any tests, settings, or different builds I could try to help you figure the problem ! ### Reproduction Steps Run the game CUSA01290, not sure if the problem occurs in title screen nor select menu, but definitely occurs during gameplay. ### Expected Behavior _No response_ ### Specify OS Version Windows 10 ### CPU AMD Ryzen 7 5700X ### GPU NVIDIA RTX 3060 ### Amount of RAM in GB 32 GB
Author
Owner

@StevenMiller123 commented on GitHub (Jul 22, 2025):

Could you provide a log of the issue?

<!-- gh-comment-id:3105122061 --> @StevenMiller123 commented on GitHub (Jul 22, 2025): Could you provide a log of the issue?
Author
Owner

@ImprovingRigmarole commented on GitHub (Jul 23, 2025):

sure, here's the log for my last play session

shad_log.txt

<!-- gh-comment-id:3105228824 --> @ImprovingRigmarole commented on GitHub (Jul 23, 2025): sure, here's the log for my last play session [shad_log.txt](https://github.com/user-attachments/files/21376969/shad_log.txt)
Author
Owner

@ImprovingRigmarole commented on GitHub (Jul 23, 2025):

also if the info can be relevant :
I'm using an external USB soundcard of which I can adjust hardware buffer size,
I have tried setting it bigger than what I usually have it set to (interrupts CPU for audio transfer less often if bigger buffer),
but I didn't notice any obvious improvement, and left it as is, just in case.

<!-- gh-comment-id:3105240026 --> @ImprovingRigmarole commented on GitHub (Jul 23, 2025): also if the info can be relevant : I'm using an external USB soundcard of which I can adjust hardware buffer size, I have tried setting it bigger than what I usually have it set to (interrupts CPU for audio transfer less often if bigger buffer), but I didn't notice any obvious improvement, and left it as is, just in case.
Author
Owner

@blottto commented on GitHub (Sep 13, 2025):

Same problem here, but with Windows 11 25h2 with BlasterX AE-5 Plus sound and HyperX Cloud Orbit S USB.

My games stopped working.

[Render.Vulkan] vk_pipeline_cache.cpp:510 CompileModule: Compiling cs shader 0xd43d0169801a9d35
[Render.Vulkan] vk_pipeline_cache.cpp:309 GetComputePipeline: Compiling compute pipeline 0x495e1827704ea06e
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (70656 queued, 65536 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 65536 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 65536 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 65536 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing.
[Lib.AudioOut] sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing.

<!-- gh-comment-id:3288597338 --> @blottto commented on GitHub (Sep 13, 2025): Same problem here, but with Windows 11 25h2 with BlasterX AE-5 Plus sound and HyperX Cloud Orbit S USB. My games stopped working. [Render.Vulkan] <Info> vk_pipeline_cache.cpp:510 CompileModule: Compiling cs shader 0xd43d0169801a9d35 [Render.Vulkan] <Info> vk_pipeline_cache.cpp:309 GetComputePipeline: Compiling compute pipeline 0x495e1827704ea06e [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (70656 queued, 65536 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 65536 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 65536 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 65536 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing. [Lib.AudioOut] <Info> sdl_audio.cpp:65 Output: SDL audio queue backed up (65536 queued, 61440 threshold), clearing.
Author
Owner

@rmoscetti commented on GitHub (Jan 1, 2026):

Same issue here with Bloodborne 1.09
After testing various shadps4 versions, I noted that with version 0.1.0 the issue appears.

My system consists on

  • i5 6600 with 16 GB of RAM
  • RTX 3060 with 12 GB of VRAM
  • various nmve and ssd disks

OS Name: Microsoft Windows 10 Home
OS Version: 10.0.19045 N/A Build 19045
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Workstation
OS Build Type: Multiprocessor Free
Original Install Date: 11/5/2020, 1:52:22 PM
System Boot Time: 12/30/2025, 5:55:55 PM
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: To be filled by O.E.M.
System Type: x64-based PC
Processor(s): 1 Processor(s) Installed.
[01]: Intel64 Family 6 Model 94 Stepping 3 GenuineIntel ~3301 Mhz
BIOS Version: American Megatrends Inc. F5g, 1/15/2016
Windows Directory: C:\WINDOWS
System Directory: C:\WINDOWS\system32
Boot Device: \Device\HarddiskVolume4
System Locale: en-us;English (United States)
Time Zone: (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna
Total Physical Memory: 16,336 MB
Available Physical Memory: 10,019 MB
Virtual Memory: Max Size: 24,528 MB
Virtual Memory: Available: 14,503 MB
Virtual Memory: In Use: 10,025 MB
Page File Location(s): C:\pagefile.sys
Hotfix(s): 59 Hotfix(s) Installed.
[01]: KB5066130
[02]: KB5027122
[03]: KB4562830
[04]: KB4577266
[05]: KB4577586
[06]: KB4580325
[07]: KB4586864
[08]: KB4593175
[09]: KB4598481
[10]: KB5003791
[11]: KB5011048
[12]: KB5012170
[13]: KB5015684
[14]: KB5072653
[15]: KB5071959
[16]: KB5006753
[17]: KB5007273
[18]: KB5011352
[19]: KB5011651
[20]: KB5014032
[21]: KB5014035
[22]: KB5014671
[23]: KB5015895
[24]: KB5016705
[25]: KB5018506
[26]: KB5020372
[27]: KB5022924
[28]: KB5023794
[29]: KB5025315
[30]: KB5026879
[31]: KB5028318
[32]: KB5028380
[33]: KB5029709
[34]: KB5031539
[35]: KB5032392
[36]: KB5032907
[37]: KB5034224
[38]: KB5035225
[39]: KB5036447
[40]: KB5037018
[41]: KB5037240
[42]: KB5037995
[43]: KB5039336
[44]: KB5041579
[45]: KB5043935
[46]: KB5043130
[47]: KB5046823
[48]: KB5050388
[49]: KB5050111
[50]: KB5052916
[51]: KB5054682
[52]: KB5058526
[53]: KB5059504
[54]: KB5063706
[55]: KB5063261
[56]: KB5063979
[57]: KB5066790
[58]: KB5071982
[59]: KB5005699
Hyper-V Requirements: VM Monitor Mode Extensions: Yes
Virtualization Enabled In Firmware: Yes
Second Level Address Translation: Yes
Data Execution Prevention Available: Yes

<!-- gh-comment-id:3703921186 --> @rmoscetti commented on GitHub (Jan 1, 2026): Same issue here with Bloodborne 1.09 After testing various shadps4 versions, I noted that with version 0.1.0 the issue appears. **My system consists on** - i5 6600 with 16 GB of RAM - RTX 3060 with 12 GB of VRAM - various nmve and ssd disks OS Name: Microsoft Windows 10 Home OS Version: 10.0.19045 N/A Build 19045 OS Manufacturer: Microsoft Corporation OS Configuration: Standalone Workstation OS Build Type: Multiprocessor Free Original Install Date: 11/5/2020, 1:52:22 PM System Boot Time: 12/30/2025, 5:55:55 PM System Manufacturer: Gigabyte Technology Co., Ltd. System Model: To be filled by O.E.M. System Type: x64-based PC Processor(s): 1 Processor(s) Installed. [01]: Intel64 Family 6 Model 94 Stepping 3 GenuineIntel ~3301 Mhz BIOS Version: American Megatrends Inc. F5g, 1/15/2016 Windows Directory: C:\WINDOWS System Directory: C:\WINDOWS\system32 Boot Device: \Device\HarddiskVolume4 System Locale: en-us;English (United States) Time Zone: (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna Total Physical Memory: 16,336 MB Available Physical Memory: 10,019 MB Virtual Memory: Max Size: 24,528 MB Virtual Memory: Available: 14,503 MB Virtual Memory: In Use: 10,025 MB Page File Location(s): C:\pagefile.sys Hotfix(s): 59 Hotfix(s) Installed. [01]: KB5066130 [02]: KB5027122 [03]: KB4562830 [04]: KB4577266 [05]: KB4577586 [06]: KB4580325 [07]: KB4586864 [08]: KB4593175 [09]: KB4598481 [10]: KB5003791 [11]: KB5011048 [12]: KB5012170 [13]: KB5015684 [14]: KB5072653 [15]: KB5071959 [16]: KB5006753 [17]: KB5007273 [18]: KB5011352 [19]: KB5011651 [20]: KB5014032 [21]: KB5014035 [22]: KB5014671 [23]: KB5015895 [24]: KB5016705 [25]: KB5018506 [26]: KB5020372 [27]: KB5022924 [28]: KB5023794 [29]: KB5025315 [30]: KB5026879 [31]: KB5028318 [32]: KB5028380 [33]: KB5029709 [34]: KB5031539 [35]: KB5032392 [36]: KB5032907 [37]: KB5034224 [38]: KB5035225 [39]: KB5036447 [40]: KB5037018 [41]: KB5037240 [42]: KB5037995 [43]: KB5039336 [44]: KB5041579 [45]: KB5043935 [46]: KB5043130 [47]: KB5046823 [48]: KB5050388 [49]: KB5050111 [50]: KB5052916 [51]: KB5054682 [52]: KB5058526 [53]: KB5059504 [54]: KB5063706 [55]: KB5063261 [56]: KB5063979 [57]: KB5066790 [58]: KB5071982 [59]: KB5005699 Hyper-V Requirements: VM Monitor Mode Extensions: Yes Virtualization Enabled In Firmware: Yes Second Level Address Translation: Yes Data Execution Prevention Available: Yes
Author
Owner

@roamic commented on GitHub (Jan 1, 2026):

We have OpenAL audio backend in the works, which is meant to replace SDL, try build from #3884

<!-- gh-comment-id:3704046880 --> @roamic commented on GitHub (Jan 1, 2026): We have OpenAL audio backend in the works, which is meant to replace SDL, try build from #3884
Author
Owner

@rmoscetti commented on GitHub (Jan 1, 2026):

We have OpenAL audio backend in the works, which is meant to replace SDL, try build from #3884

Nice to know, thank you

<!-- gh-comment-id:3704056690 --> @rmoscetti commented on GitHub (Jan 1, 2026): > We have OpenAL audio backend in the works, which is meant to replace SDL, try build from [#3884](https://github.com/shadps4-emu/shadPS4/pull/3884) Nice to know, thank you
Author
Owner

@vzhik227 commented on GitHub (Jan 27, 2026):

Hello everyone.
This is my first time reporting a problem on GitHub. I saw threads 1717 and 2015, but they're closed. I'm not sure what the status of 3884 is. I have a very similar problem: the sound seems to be choppy, although the FPS isn't too low—30-35 fps.
I tried versions 0.13 and the current nightly build, from January 26, 2026, but the issue is the same. I apologize if I've messed up the format.
Configuration: i5 4760, 16GB, 1050ti
The emulator is simply amazing. Kudos to all the work.

log BloodBorne.txt

https://github.com/user-attachments/assets/bdef8601-9670-4473-9333-662330870f83

<!-- gh-comment-id:3803210522 --> @vzhik227 commented on GitHub (Jan 27, 2026): Hello everyone. This is my first time reporting a problem on GitHub. I saw threads [1717 ](https://github.com/shadps4-emu/shadPS4/issues/1717)and [2015](https://github.com/shadps4-emu/shadPS4/issues/2015), but they're closed. I'm not sure what the status of [3884 ](https://github.com/shadps4-emu/shadPS4/pull/3884)is. I have a very similar problem: the sound seems to be choppy, although the FPS isn't too low—30-35 fps. I tried versions 0.13 and the current nightly build, from January 26, 2026, but the issue is the same. I apologize if I've messed up the format. Configuration: i5 4760, 16GB, 1050ti The emulator is simply amazing. Kudos to all the work. [log BloodBorne.txt](https://github.com/user-attachments/files/24874113/log.BloodBorne.txt) https://github.com/user-attachments/assets/bdef8601-9670-4473-9333-662330870f83
Author
Owner

@georgemoralis commented on GitHub (Jan 27, 2026):

as said you can try our openal build at https://github.com/shadps4-emu/shadPS4/pull/3884 . It reported that work better in bb from some users . Since SDL audio will be likely dropoff soon or later try if that fits better in your case

<!-- gh-comment-id:3803747366 --> @georgemoralis commented on GitHub (Jan 27, 2026): as said you can try our openal build at https://github.com/shadps4-emu/shadPS4/pull/3884 . It reported that work better in bb from some users . Since SDL audio will be likely dropoff soon or later try if that fits better in your case
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