Question / Help I-O Data GVUSB2 audio and video problems in OBS Studio

ruunix2

New Member
Hey all. So last week I was streaming using my I-O Data GVUSB2 and everything was fine till Friday, at which point when I started the stream my viewers were reporting very bad audio quality, which they described as sounding like I had smacked the cartridge in an N64.

I thought maybe there was something wrong with the capture device so I bought another GVUSB2 and replaced it and the issue persists.

Occasionally if OBS loads up the capture, sometimes the video will stutter but the audio will be fine. It seems to start out playing too quickly but then stuttering constantly after that point, and this is unfortunately bad for the viewer and for recordings.

For giggles I tried to set up the capture in AmaRecTV and was able to get quality video/audio strictly within AmaRec. When I then attempted to use 32-bit OBS to load in the AmaRec video capture source, the audio was messing up again, only instead of /only/ stuttering, the audio was warped, changing pitch constantly. The only time in OBS the audio sounds normal is if I close the application, then while the application is closing, the audio becomes normal until the application is completely closed, when it stops.

I am concluding there is probably something in OBS that is interfering with the capture quality from my card. I haven't changed anything hardware wise apart from trying a second capture card of the same model and type. It's possible that something else may be interfering with it but I wouldn't be sure what.

One other thing to point out is that I have occasionally noticed a few times where OBS complains about encoder overload, which it never did before, especially when the CPU does not get over 35% at the absolute worst. My other capture card does not seem to have this problem, nor is the audio on my television affected. I've attached a log, and here's a video of the problem: https://youtu.be/8xIIuiLx9Sw
 

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Wow you have an insanely high amount of filters on your sources ^^

I have two ideas:
1) try setting your audio to 44KHz instead of 48k:
18:43:26.036: audio settings reset:
18:43:26.036: samples per sec: 48000
18:43:26.036: speakers: 2

2) create a completely blank scene (of course don't delete your existing scene) and only add the sources required to have a game picture.

 
I do! Main thing is just to keep transforms and crops to presets since every game seems to have borders at different spots and I want to have the game feed be as clean as possible. Not sure when the last time I added a feature is.

In response to your suggestions, the samples per second at 48k, I tried to set all the audio sources to 48k to keep everything together but that did not have any luck. The I-O Data card cannot capture any other audio rate than 44.1k.

I also tried creating a blank scene with only the video feed. The audio is still staticky, but I noticed it didn't sound like it was trying to play too quickly and then unable to catch up later. I then retried it on a scene with sources on it and it was performing identically.

At some point last night I realized my computer hadn't been restarted in a while, so I also tried a restart and got no luck there either.
 
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