Hello everyone.

We have decided to phase out the Mixed Reality Forums over the next few months in favor of other ways to connect with us.

The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.

The plan between now and the beginning of May is to clean up old, unanswered questions that are no longer relevant. The forums will remain open and usable.

On May 1st we will be locking the forums to new posts and replies. They will remain available for another three months for the purposes of searching them, and then they will be closed altogether on August 1st.

So, where does that leave our awesome community to ask questions? Well, there are a few places we want to engage with you. For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality. If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers. And always feel free to hit us up on Twitter @MxdRealityDev.

Livestream performance/reliability during demos

I am often using the HoloLens companion app to livestream the image from the HoloLens to a Windows machine. Unfortunately my experience with the reliability on this end really varies. I noticed livestream performance seems to depend on both the network quality as well as the complexity of the images shown. I'm wondering about people's experience with this. Does anyone have tips/tricks to improve the reliability?

Ideally I'd like to be able to visit a client for a demo and have the stream working reliably :)

Best Answer

Answers

  • AlexDAlexD ✭✭✭

    I haven't really been using the HoloLens companion app because I found it a bit less stable than the Device Portal web page, especially when connecting.

    So I use the web page for my Mixed Reality Capture in my client demos. One trick that worked for me is to disable the microphone and app audio from the recording. If that fails, try reducing the quality as well.

  • I tried to give a demo to my upper mgmt yesterday. Even with a dedicated 300mbps wifi router and using device portal mixed reality capture (Mic audio turned off), the video as well as my program cut off several times and had to be restarted. Luckily restarting the video capture in the device portal as well as air-clicking back in to my program was fairly quick.
    Please Microsoft, I think this needs to be rock-solid to get general enterprise buy-in. Being able to use a conference room projection of the experience is a key value-add.
    While on the subject, I'm thinking that a 2nd hololens "cameraman" monitoring the primary hololens user would probably be necessary for a successful presentation. Perhaps the 2nd hololens can be attached to a steadycam or similar. Any guidance for enabling this capability would be greatly appreciated!

  • Anyone has any new development on this. We are starting to do some demos to internal and external customers and performance and streaming issues keep the demo not as smooth as it should be.

  • if you get a really long USB cable, you can connect to the device portal over USB at http://127.0.0.1:10080 and this is a very reliable way to live stream.  I have not been able to connect over USB using the companion app, just with the browser.

  • Hello everyone. The best solution (which works great) is to use a dedicated router that you can carry with you, and connect both your PC and the Hololens to. Then, in the router's administrative settings, enable QoS, and add the Microsoft Hololens for QoS for both Video and Audio. (consult your router's manual in how to do this setup). After I did this, the stream is butter smooth with about a .25 second lag.

  • Hi all. I have a potential project that would require 5 simultaneous Hololens feeds to be recorded on a single PC. I've had issues even capturing a single stream from a single Hololens. Has anyone come across any more robust solutions?

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