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IDProjectCategoryView StatusDate SubmittedLast Update
0000575madVRbugpublic2018-09-05 16:022018-09-05 16:20
Reporterelelunicy 
Assigned Toelelunicy 
PriorityhighSeveritymajorReproducibilityalways
StatusresolvedResolutionfixed 
PlatformPCOSWindows 10OS Version1803
Summary0000575: Hissing/static noises from speakers when MadVR is enabled
DescriptionSo I'm having the problem when I start playing a video the speakers would make very slight hissing sound/static noise for about 10 seconds and then it stops. It's very slight but can be heard when the room is quiet. Increasing/decreasing the volume does not make the noise quieter/louder.

I've tried both Potplayer and MPC-BE and the noise issue happens with both. The issue is gone after disabling MadVR. Resetting MadVE's settings to defaults does not fix the issue. No noise issue either when using other players that don't use MadVR.

I also tried switching between LAV audio decoder and the built-in decoder and it doesn't make a difference. Changing the audio renderer between DirectSound/WaveOut/WASAPI made no difference either. It also doesn't matter what the audio format is (AAC, DTS, or TrueHD) and the noise is always there. There's no noise, however, when playing an audio only file.
Additional InformationI'm using a pair of powered stereo speakers connected to an external USB DAC.
TagsNo tags attached.
madVR Versionv0.92.14
Media Player (with version info)Potplayer 1.7.13963
Splitter (with version info)LAV Splitter 0.72
Decoder (with version info)LAV Video Decoder 0.72
DecodingSoftware
Deinterlacingauto mode
DXVA2 Scaling Activeno
Aero / Desktop CompositionOff
Problem occurs with modeall modes
GPU ManufacturerNVidia
GPU ModelTitan X (Pascal)
GPU Driver Version399.07
Attached Files

- Relationships

-  Notes
(0002351)
madshi (administrator)
2018-09-05 16:07

It's probably the GPU running at max power for a couple of seconds. This happens because madVR fills up its internal queues, by rendering multiple video frames ahead as fast as possible. This is done to ensure smooth video playback without frame drops.

You could try using some GPU clock tool to limit the GPU clocks, or something.

Anyway, it's really nothing I can anything about. If the GPU makes noise when under full load, it's out of my control.

Maybe you could try lowering the size of the GPU queue in the madVR settings. That should reduce the number of seconds the GPU is under full stress at the start of a movie.
(0002352)
elelunicy (reporter)
2018-09-05 16:19

That was it. I thought it was from the speakers but after listening very carefully it was indeed just GPU coil whine. I'm upgrading my GPU soon so hopefully the new GPU won't have the problem.

- Issue History
Date Modified Username Field Change
2018-09-05 16:02 elelunicy New Issue
2018-09-05 16:07 madshi Note Added: 0002351
2018-09-05 16:19 elelunicy Note Added: 0002352
2018-09-05 16:20 elelunicy Status new => resolved
2018-09-05 16:20 elelunicy Resolution open => fixed
2018-09-05 16:20 elelunicy Assigned To => elelunicy


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