Aim is to deliver 1080p @ 60fps video stream and higher fidelity content from PC graphics, and more audio sources into mix.
It’s not a downtime but highly anticipated and unscheduled time for upgrades.
Integrated sound junk to (pro) DAW
To get on with streaming I have preformed tests of different audio configuration on now new streaming PC.
Using front panel for mic in conclusion as it has far better strength of signal that any rear panel input. Even the front panel mic input is crap, don’t get me ‘rong. What I did was polish and tune the mic capture signal in OBS going hard with 3BandEQ and cutting highs and mids.
And I tuned the mic output for playback on speakers and found the balances with other audio sources in the mix. I’ll mostly control all audio channels on the with volumes on the sources.
While the rest is just a disaster as any playback sent to front panel gets into that front mic audio signal line. Thus making the front panel “headphones” useless while recording / capturing the front mic input.
In fact, all signals in that circuit interfere. And that is just the nature of how AC97 and “HD Audio” is implemented in many motherboards, poorly.
A320M-HDV R4.0 is the motherboard for the audio / video capture and streaming rig. And the onboard sound is almost the same as on ASUS H81M-K.
After more detail testing of “new” audio subsystem situation is 94% identical on both motherboards. Concerning sound quality of the inputs and poor practical application of front and rear outputs for simultaneous real-time playback and live monitoring.
What I need is ability to pass all audio to single output for playback on headphones (nightlies) or speakers (daytime). I had that working with previous setup with two PCs. Now, using one PC I’m missing one analog zero latency high quality line-in input direct to output line. That’ll not cause interference with mic capture.
That means I’m onto putting together from parts I have at disposal, a dedicated mixing rig with one or more PCI sound cards, running Linux or Windows XP.
FINALLY: Line in and mic capture from same audio device on Linux
21. February 2025.
OK! And just like that. I got up today launched Pop!_Os on my i5 and opened Pulse Audio Volume Control, switched to Configuration tab to enable “Pro Audio” profile on my Built-in Audio for integrated Realtek sound.
Opened QasMixer to bind Line input to Capture 1 and for Front Mic to Capture 0.
In OBS in audio settings for Mic/AUX selected Built-In Audio (QasMixer Capture 0 – Front Mic), and for OBS Mic/AUX 2 selected Built-In Audio 2 (QasMixer Capture 1 – Line).
Guess what? IT FUCKING WORKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
While just day before I spent 8 hours again like previous years looking for a way to enable Capture 0 and 1. Just to see the same results about the issue, without a solution.
Many Linux users just get additional audio hardware just to have ability to capture the “next” analog audio input. Where in Windows all audio inputs on integrated audio is enumerated and exposed to user (applications) since Day ZERO.
But, I didn’t give up. I did read allot on Linux audio. But for simplicity of managing analog audio inputs and outputs it is more efficient for me to boot Windows (and suffer another set of frustrations over there).
Now, with PipeWire and Pro Audio configuration exposed in Pulse Audio UI I’m having no trouble getting stuff done my way in Pop!_Os. And I always loved QasMixer all channels in one interface.
I’m guessing that in case of audio capture in OBS in previous versions or some other distro. That it is possible to add to OBS an ALSA input capture (custom) by mapping low level hardware ids of any Capture channel available on hardware Card.
Seasonally I go through tech stack hardware shuffle in the lab for production workflow optimisations. Right now I’m testing and “benchmarking” my audio stack hardware with Realtek drivers.
Result is best optimal experience using this driver package: “mb_driver_audio_realtek_6.0.9088.1”, but can’t tell you where I got it from coz IDK. As, it provides “Stereo Mix” for a recording device as source, and better audio mixer user interface with audio volume controls for all inputs real-time playbacks. Yes, no laggy “listen to” MS silliness.
Expanding on my previous live session streaming series:
Where I considered migrating video capture and live streaming stack to nVidias hardware encoder.
How turn tables
After more through testing, I made decision to park the video production stack on X.264 encoder with AMD CPU rig with RX590 GPU.
Since that AMD H.264 visual quality is far worse than previous I had pleasure of using. Than was QVS H.264 (on onboard Intel(R) HD Graphics 4600 with Intel(R) Core(TM) i5-4690 CPU @ 3.50GHz).
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