Currently having audio issues and i do not know why.

[StubblyRumble]

Well I should start at the beginning. Built a PC, works exactly as it should. Purchased a Yamaha MG10XU (usb soundboard) to go with microphone. Downloaded software for Yamaha, downloaded obs studios software. In the PC it's self the sound settings are desktop audio set to Yamaha (soundboard), and microphone set to Yamaha (soundboard). In obs studios I have it set up exactly the same, desktop and mic set to Yamaha (soundboard). I also have each sound source on its own track. Now when I speak into the microphone my mic audio has an echo and the mic audio is also coming through the desktop audio on obs. I noticed this before I hit record then I noticed while reviewing the test clip that my desktop audio didn't record. I also have something weird happening with my phantom power, when you turn phantom power off I can still hear myself on the microphone for about 5 seconds until it fades out, almost like it is still receiving power. This started at the same time as the echo.
I've looked around for answers in regards to any one of the issues I am running into and each time people are saying to use certain settings, and I already have those setting in place. Or to do things in certain steps, and I have done those steps with the same outcome. I have checked the drivers, and updated any that needed it and still same issue. I have un-installed and re-installed obs studios just incase I messed something up to start a new, and I ended up in the same place.
In regards to the soundboard, I have the effects switch off, so that wouldn't be the echo. Only have 1 microphone and 1 headphones plugged into it. I previously thought I needed to run a channel to the audio plug of the pc along with the usb, but when I had that plugged in I had a different issue that was resolved by just using the usb. Side note, noticed when I unplugged this channel and fixed the prior issue my microphone audio quality would fluctuate from perfectly fine to scratchy and crappy and back. I have checked over all the settings in regards to my specific soundboard, checked the manual, and everything seems to be plugged into where it is supposed to and all the right buttons are pressed.
I am at the end of my road, I have watched hours of videos read countless articles/ forums on audio issues around my specific issues for almost two weeks now and all of them are coming up the same. All say that if its set up the way it is it shouldn't be having these issues.
So if there is anyone out there who has ever experienced any or all of these issues any suggestions on how to fix any of these issues would be a blessing.

Log File: Last log (https://obsproject.com/logs/rjGjAmuAXGaKIT_3)

Any help is welcome. Please & Thank You.

 

[carlmmii]

Time for a crash course in how PC-connected mixers work! Strap in...

The phantom power thing is normal. Phantom power will linger for about 5 seconds before it actually shuts off entirely. This is to prevent damage to condenser mics as large transients in DC voltage can damage circuitry (and is also the reason why you should never connect/disconnect a hot XLR cable - that's the pop you hear).

Setting your computer's output to the mixer is correct. This will send your desktop audio to the designated channel on the mixer, which you can control by the fader on the mixer.

Treating the mixer as a microphone however is not the correct way of thinking about things. The mixer's recording device on the computer is the ENTIRE mix (also known as "main mix"). That means both your actual microphone, as well as the computer's output -- anything that's running through the mixer, that's what will be sent over that recording device in windows.

If you do need a microphone-only output (i.e. for discord/voice chat), then you will need to use the FX send feature on the mixer. This lets you output specific channels using the FX send knob on each, and just take that mix separately from the main mix. You should be able to run a 1/4" to 1/8" cable from the mixer to the line-in input on your computer for this purpose.

The reason you're hearing an echo in the recording is most likely because you're adding the desktop output, as well as the mixer's output. You're getting desktop audio from both places, both before and after the mixer.

If you're going to use a mixer for audio balancing, then the easiest way to deal with things is just to have a single audio input source in OBS selected to the mixer's output. That way whatever you hear in the headphones is exactly what OBS will be recording.

If instead you want to have separate audio sources for each in OBS (i.e. for multichannel recording), then you need to use the desktop output and your mic-only line (the FX send), and not the mixer main mix output. Basically, you would be reconstructing the mix in OBS in parallel to what's happening on your mixer. Keep in mind though that you would need to control the mix in OBS, as the mixer would be completely independent in this scenario.

 

[StubblyRumble]

Time for a crash course in how PC-connected mixers work! Strap in...

The phantom power thing is normal. Phantom power will linger for about 5 seconds before it actually shuts off entirely. This is to prevent damage to condenser mics as large transients in DC voltage can damage circuitry (and is also the reason why you should never connect/disconnect a hot XLR cable - that's the pop you hear).

Setting your computer's output to the mixer is correct. This will send your desktop audio to the designated channel on the mixer, which you can control by the fader on the mixer.

Treating the mixer as a microphone however is not the correct way of thinking about things. The mixer's recording device on the computer is the ENTIRE mix (also known as "main mix"). That means both your actual microphone, as well as the computer's output -- anything that's running through the mixer, that's what will be sent over that recording device in windows.

If you do need a microphone-only output (i.e. for discord/voice chat), then you will need to use the FX send feature on the mixer. This lets you output specific channels using the FX send knob on each, and just take that mix separately from the main mix. You should be able to run a 1/4" to 1/8" cable from the mixer to the line-in input on your computer for this purpose.

The reason you're hearing an echo in the recording is most likely because you're adding the desktop output, as well as the mixer's output. You're getting desktop audio from both places, both before and after the mixer.

If you're going to use a mixer for audio balancing, then the easiest way to deal with things is just to have a single audio input source in OBS selected to the mixer's output. That way whatever you hear in the headphones is exactly what OBS will be recording.

If instead you want to have separate audio sources for each in OBS (i.e. for multichannel recording), then you need to use the desktop output and your mic-only line (the FX send), and not the mixer main mix output. Basically, you would be reconstructing the mix in OBS in parallel to what's happening on your mixer. Keep in mind though that you would need to control the mix in OBS, as the mixer would be completely independent in this scenario.

Thank you very much. Took me a bit to get the cable I needed, but once I did, everything practically fixed itself. But I now I a better understanding of what could be wrong if something occurs in the future. Again Thank You very much for taking time out of your day to write all that out to help.