Merge pull request #30000 from lujun9972/add-MjAyMzA4MjggVXNpbmcgWW91ciBQaG9uZSBhcyBDYW1lcmEgYW5kIE1pYyBpbiBVYnVudHUgTGludXgubWQK

自动选题[tech]: 20230828 Using Your Phone as Camera and Mic in Ubuntu Linux
2025-01-10 22:21:11 +08:00 · 2023-08-29 09:45:11 +08:00 · 2023-08-29 09:45:11 +08:00 · fd3b78bae7
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+[#]: subject: "Using Your Phone as Camera and Mic in Ubuntu Linux"
+[#]: via: "https://itsfoss.com/ubuntu-phone-camera-mic/"
+[#]: author: "Sagar Sharma https://itsfoss.com/author/sagar/"
+[#]: collector: "lujun9972"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+Using Your Phone as Camera and Mic in Ubuntu Linux
+======
+
+Like many other Linux users, I use a desktop and unlike a laptop, you don't get a camera and mic pre-installed.
+
+And you have to invest in a premium webcam to match the quality of your modern smartphone.
+
+Well, in this tutorial, I will walk you through step-by-step how you can use your phone as a mic and camera which can be used in online meetings.
+
+### Use the phone's camera and mic in Ubuntu
+
+🚧
+
+This tutorial utilizes a third-party website <https://vdo.ninja/> to host audio and video. Thus, it is not a completely open source solution.
+
+Here, I will guide you through the following:
+
+  * Installation of OBS (if you haven't)
+  * Generate invite through `vdo.ninja`
+  * Setup virtual audio cable (for audio output)
+  * Configure OBS to redirect audio and video from `vdo.ninja`
+
+
+
+So let's start with the first one.
+
+📋
+
+I have used Ubuntu in the tutorial. However, I believe that the same can be achieved on other distributions as well. You just have to install the needed packages for your distro and it should work. I let you experiment.
+
+#### 1\. Install OBS in Ubuntu
+
+OBS (Open Broadcaster Software) is one of the best software for recording and streaming videos and most streamers use OBS to live stream on digital platforms.
+
+The good thing is OBS is available in the default repository of Ubuntu and can be installed using the following command:
+
+```
+
+    sudo apt install obs-studio
+
+```
+
+#### 2\. Generate an invite through VDO.ninja
+
+In this section, I will show you how you can generate an invite to stream your audio and video over vdo.ninja and how you can start streaming from your phone.
+
+First, go to [VDO.ninja][1] and click on `Create Reusable Invite`:
+
+![][2]
+
+It will show you multiple options such as quality settings, adding video effects, etc. I recommend using the default settings as you may need faster processing and more bandwidth for high-quality videos:
+
+And to create a link, all you have to do is click on `GENERATE THE INVITE LINK` button:
+
+![][3]
+
+And it will show you the following:
+
+  * A QR code that you have to scan through your phone (alternatively, you can also use the link).
+  * Link for the OBS.
+
+
+
+**I will cover the OBS part later on this tutorial so please don't close the window.**
+
+First, scan the QR code from your smartphone and it will redirect you to another page of the VDO.ninja where you have to select the following:
+
+  * Select `Share your Camera` option.
+  * You can choose a front or rear camera from the video source (the front will be selected by default).
+  * Hit the `Start` button and it will start the streaming on the OBS link.
+
+
+
+![][4]
+
+#### 3\. Setup a virtual cable for OBS on Ubuntu
+
+🚧
+
+The method will only work with the PulseAudio and the virtual cable will be flushed out once you reboot.
+
+First, let's talk about what is virtual cable and why you need it to use your phone as a camera and mic.
+
+The virtual cable is software used for transfering audio streams from one application to another.
+
+But the sad part is that it is only available for Windows and macOS.
+
+Hmmmm???? So why am I writing this?
+
+The answer is simple. I found a workaround to this where you can have the same functionality as a virtual cable for **the current session**.
+
+To set up a virtual cable, first, you have to load the `module-null-sink` module using the following command:
+
+```
+
+    pactl load-module module-null-sink sink_name=Source
+
+```
+
+And then, execute the given command to create a virtual audio source named `VirtualMic`:
+
+```
+
+    pactl load-module module-virtual-source source_name=VirtualMic master=Source.monitor
+
+```
+
+Both commands will return some numbers that you don't have to worry about.
+
+Now, go to the system settings, and there you will find settings for sound:
+
+![][5]
+
+Next, go to the `Input` section and there, you will find the option to choose an input device.
+
+Chose `VirtualMic` as an input device:
+
+![][6]
+
+That's it!
+
+But as I said earlier, once you reboot the effect of virtual audio will be flushed and if you regularly want to use your phone as a camera and mic, it can be inconvenient.
+
+To cater to this, you can [create an alias][7] for those two commands. For example, you can create aliases for both commands: vc1 and vc2.
+
+Once done, you can [execute both commands at once][8] like this: `vc1 && vc2`.
+
+#### 4\. Setup OBS to stream audio and video from the phone
+
+First, open the VDO.ninja tab that I told you not to close and copy the OBS link:
+
+![][9]
+
+Once copied, open OBS, and under the `Sources` section, you will find a ➕ (plus) button. Click that button and select `Browser`.
+
+It will open a little prompt to create/select a source. Simply press the `OK` button:
+
+![][10]
+
+Finally, paste the link in the `URL` field:
+
+![][11]
+
+And soon, you will see OBS using your phone's camera:
+
+![][12]
+
+But there are a few extra steps to get audio from your phone.
+
+First, click on the `File` and choose `Settings`:
+
+![][13]
+
+There, Choose `Audio` and look for the `Advanced` section.
+
+In the Advanced section, you will find an option for `Monitoring Device` and there you have to choose `Souce Audio/Sink sink`:
+
+![][14]
+
+Apply the changes.
+
+For most users, the audio should be working by now. But if yours don't then here's how you can make it work.
+
+In the Audio Mixer section, it will be either the `Browser` or the `Desktop Audio` , or you may also see both of them.
+
+Click on those three dots for Desktop Audio or Browser (in my case, it's Desktop Audio) and choose `Advanced Audio Properties`:
+
+![][15]
+
+From there, choose `Monitor and Output` for the Browser and Desktop Audio:
+
+![][16]
+
+And that's it! You can enjoy the camera and mic from your phone.
+
+#### 5\. Test the whole setup
+
+To test this, I used my phone as a camera and mic in our book club's weekly meeting and it worked flawlessly.
+
+![][17]
+
+As you can see, the above image indicates a working mic and camera (which brought a smile to my face 😸).
+
+The video quality depends on the internet bandwidth so make sure you have a good connection before starting an important meeting.
+
+### Wrapping Up...
+
+I'm one of those desktop users who don't have access to a camera and mic and have to rely on a laptop or mobile for office meetings and I was irritated by that.
+
+Remember, you have to create a virtual cable every time you reboot, but it won't take much time as it takes two command executions.
+
+Have used this solution multiple times and it worked every time I put it to the test. I really hope you will have the same output.
+
+--------------------------------------------------------------------------------
+
+via: https://itsfoss.com/ubuntu-phone-camera-mic/
+
+作者：[Sagar Sharma][a]
+选题：[lujun9972][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://itsfoss.com/author/sagar/
+[b]: https://github.com/lujun9972
+[1]: https://vdo.ninja/
+[2]: https://itsfoss.com/content/images/2023/08/Click-on-create-reusable-Invite-button.png
+[3]: https://itsfoss.com/content/images/2023/08/Click-on-the-generate-invite-link-button.png
+[4]: https://itsfoss.com/content/images/2023/08/setup-vdo.ninja-on-phone.png
+[5]: https://itsfoss.com/content/images/2023/08/Open-sound-settings.png
+[6]: https://itsfoss.com/content/images/2023/08/Choose-virtul-mic-as-an-audio-input-in-Linux-to-use-phone-s-camera-and-mic-.png
+[7]: https://linuxhandbook.com/linux-alias-command/
+[8]: https://linuxhandbook.com/run-multiple-commands/
+[9]: https://itsfoss.com/content/images/2023/08/Copy-link-for-OBS.png
+[10]: https://itsfoss.com/content/images/2023/08/Create-new-source-for-streaming-in-OBS-to-use-camera-and-mic-of-your-phone-in-Ubuntu-1.png
+[11]: https://itsfoss.com/content/images/2023/08/Paste-VDO.ninja-link-in-OBS-to-use-your-phone-s-camera-and-mic-in-Ubuntu-Linux.png
+[12]: https://itsfoss.com/content/images/2023/08/Stream-audio-and-video-from-your-phone-to-Ubuntu-Linux-using-OBS.png
+[13]: https://itsfoss.com/content/images/2023/08/Open-settings-in-OBS.png
+[14]: https://itsfoss.com/content/images/2023/08/Choose-virtual-audio-in-OBS-to-use-phone-s-mic-in-ubuntu-Linux.png
+[15]: https://itsfoss.com/content/images/2023/08/Choose-advanced-option-to-use-audio-from-phone-in-Ubuntu-linux-using-OBS.png
+[16]: https://itsfoss.com/content/images/2023/08/Enable-monitor-and-output-for-OBS.png
+[17]: https://itsfoss.com/content/images/2023/08/Using-phone-s-camera-and-mic-in-Ubuntu-Linux.png