Question about USB audio
by joboy from LinuxQuestions.org on (#5BAE2)
Hi there,
I have some questions partly computing partly electrical, in stead of joining multiple forums to ask each question, I believe I can get answer from here, as there are many talented people in this forum !
I believe Zoom and OBS are no stranger to many of us here especially at this moment in time, I am doing some streaming in a church, we have a small analogy mixer, and we feed audio to OBS from it to Windows for streaming, to simplify things we only use the mixed output feed to OBS, so that we don't have control of individual audio source on OBS. We found we need better control of individual source, like adding compression and reverb to mic channels etc. Since the PC is lack of audio ports, I am thinking about using USB audio, and I will use some XLR to USB adapter cables, since we need the audio feed to 'house' as well, I also need some splitter cables and here comes the problem.
https://www.aliexpress.com/item/1005...archweb201603_
https://www.aliexpress.com/item/4000...archweb201603_
Firstly, the above cheap passive splitter cables I think are simply running parallel in 2 plugs, I don't know if this will cause any adverse effect when use on a wireless mic receiver.
Secondly, since the PC is out of USB ports, I need to use a power hub for multiple mic (receiver), but I don't know how would windows/OBS assign the audio channels. Suppose I use 4 mic each with the same type of XLR to USB adapter cable feed into the hub, so that windows will recognize that as 4 USB audio devices, and will be shown as USB audio #1-4 something like that. But what if I plug in a flash drive to the hub before I turn on the receiver, will the channel assignment change ? is there any way to force OBS to map the USB audio channel so that will work every time reboot ?


I have some questions partly computing partly electrical, in stead of joining multiple forums to ask each question, I believe I can get answer from here, as there are many talented people in this forum !
I believe Zoom and OBS are no stranger to many of us here especially at this moment in time, I am doing some streaming in a church, we have a small analogy mixer, and we feed audio to OBS from it to Windows for streaming, to simplify things we only use the mixed output feed to OBS, so that we don't have control of individual audio source on OBS. We found we need better control of individual source, like adding compression and reverb to mic channels etc. Since the PC is lack of audio ports, I am thinking about using USB audio, and I will use some XLR to USB adapter cables, since we need the audio feed to 'house' as well, I also need some splitter cables and here comes the problem.
https://www.aliexpress.com/item/1005...archweb201603_
https://www.aliexpress.com/item/4000...archweb201603_
Firstly, the above cheap passive splitter cables I think are simply running parallel in 2 plugs, I don't know if this will cause any adverse effect when use on a wireless mic receiver.
Secondly, since the PC is out of USB ports, I need to use a power hub for multiple mic (receiver), but I don't know how would windows/OBS assign the audio channels. Suppose I use 4 mic each with the same type of XLR to USB adapter cable feed into the hub, so that windows will recognize that as 4 USB audio devices, and will be shown as USB audio #1-4 something like that. But what if I plug in a flash drive to the hub before I turn on the receiver, will the channel assignment change ? is there any way to force OBS to map the USB audio channel so that will work every time reboot ?