How do i use my usb microphone not my head set but a streaming microphone on cloud gaming...

The Xbox One does not support USB Microphones. You could just use a headset for talking while streaming your games or stream using your PC, and use a USB microphone on there instead.

As there is a standard for webcams introduced in Windows 10, most "off the shelf" cameras that are certified for Windows 10 will work with Xbox One as a replacement for the camera part of Kinect for streaming.

However, for USB microphones, there is no such standard yet, and therefore, Microsoft can't add multiple different drivers for USB microphones, as it makes no sense to add a driver for multiple types of Microphones.

So either get a microphone that has a 3.5mm jack and put that into the controller (with an adapter to convert the Microphone jack to a CTIA compliant jack if necessary), or set up your stream to go through your PC and use the Microphone on your PC to add
your voice to the stream.

Does the Astro A50 have a Stream Out Port?

I have the Astro A40 with Mix Amp Pro and I use the Stream Out port connected to the Microphone port to the PC.

If you do you just need a 3.5mm to 3.5mm cable. You would also need to change the Stream Out Port setting in Astro Command center to party chat only.

Then I have 3 Audio Channels with 3 audio sliders

Capture Card (Game)

Microphone (Part Chat)

USB Yeti (Microphone)

Update: Regarding issue #2 (Headaet adapter issues while connecting Xbox One controller to Windows 10 PC for streaming)

I discovered that:

1) The headset adapter is just treated like an additional headphone and microphone under the Windows audio settings.

2) To select which microphone to use (e.g. PC mic or microphone attached to Headset Adapter), set the desired microphone as your default device by right clicking volume/speaker icon at the bottom right of the taskbar and click "Recording devices."

3) Odd behavior or malfunctions (e.g. headet microphone not working when streaming to Wkndows 10) may occur when there are too many USB plugged into the computer, causing insufficient USB controller resources.

When I plugged the Xbox One controller directly into my Surface Pro 2, the microphone automatically worked fine. When I docked my Surface Pro 2 into its docking station and plugged the Xbox One controller into the docking station's USB port, my headset adapter/Stereo
Headset's microphone was recognized, but the decibel meter would not detect any sound when spoken into. Occasionally, I would receive a "insufficient USB controller resources" error. This could also be an issue related to connecting the Xbox One controller
to a USB hub.

Regarding issue #1 (headset adapter/stereo headset's microphone not working on Xbox One after disconnecting from streaming), I will see if I experience it again to isolate the issue.

It depends on the type of your streaming Microphone.

If it's an USB microphone, then no.

If the Microphone has an analogue connector (e.g. 3.5mm jack), you could use a headphone/microphone to CTIA adapter, and plug your Astro into the headphone plug and your streamer microphone to the microphone plug, and then plug the CTIA adapter into the
controller.

Alternatively, if you use a third party streaming software and are screen capturing from your PC, you can start the Party through the Xbox App on your PC, and stream the game to a capture card on your PC. Then you can mix the game audio from the captured
console with your party sound (if your streaming software allows such a mix), and then stream that from your capturing PC to your streaming platform.