Ijust bought a Logitech c920e webcam that has a built in microphone. I have been using it on my work computer (Dell running Windows) and sound and video work great. I moved it to my mac mini running Big Sur and the microphone doesn't work. In fact, the microphone doesn't even show, either under microphone in system preferences or under utilities>MIDI. I'm unsure of what my next steps are. All the threads I've researched have what to do under either of those settings and not what to do if its not a choice. If anyone has an idea of next steps, I'd love to hear it. I've tried plugging straight into the mac mini, using a powered USB hub...and the only thing I can get to work is the camera, not the microphone.
My guess is that there are no drivers installed for the Logitech c920 on my pi, but I'm not sure. How would I download drivers or what should I do to be able to use my webcam? The c920 is on the list of approved webcams, I have nothing else being powered by my pi so I should have enough power output to take a simple picture.
I spent a number of hours recently with my C920 and a Raspberry Pi 3 recently to make a babyCam that I could stream within my home network. I may be able to shed some light but also provide documentation and experience to other users.
The C920's H.264 encoder is good but its rate seems only works at 3 Mb/s average bit rate no matter what the resolution. However, I tend to use 720p, that is 1280x720 because a 16:9 aspect ratio makes sense for the application.
On testing the camera's audio, I recorded and listened to the WAV file I recorded to the Pi's local storage. Unfortunately with this recipe, you'll need to Ctrl-C after 10 seconds. Cleanup the extra record files. So I can record good sound from the camera with this command to a wav file but I can't make arecord stop at 10 seconds:
I am using Logitech C920 for recording Video and Audio. The Audio quality was great until last week, and I recored 12 videos with stunning audio quality. But for the last couple of videos, the quality of Audio is not that great. I am not sure what has changed in my recording set up. Will windows automatic updates cause such audio quality issues? I tried restarting the machine, plugging the cam in the different USB port, change the distance of the microphone. But nothing helped.
My 2 cents: never use the webcam as a microphone, there are too many variables, starting with the USB port (which is a hub!) and drivers updates. It also suffers from your PC CPU workload. As I said, too many variables.
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Looks fine to me. Next would be get the logs, the command to run would be journalctl -u webcamd, to look and see if there is an issue displaying that resolution.
2304x1536 sounds off to me, are you sure this is a resolution that the camera supports? You could try 1920x1080, a more common one to check it is picking up the settings, then move on from there?
I want to max out the resolution. I like to edit in a little movement in Premiere Pro, so the larger the image the more options I have for applying some movement in post.
Here is the article I read that talked about the c920 and it's sensor size. -how-to-increase-image-quality-when-taking-images-through-image-acquisition-toolbox-beyond-available
No guarantees that the driver is able to read that size I would say. If you run v4l2-ctl --list-formats-ext you will get every resolution that the camera supports listed. If it's not there, it won't work. Might be worth verifying with the logs and testing at lower resolutions that you are configuring it correctly.
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Before you connect the candidate admissions camera, make sure you have read the Place the admissions equipment topic and have selected a suitable location for the device. Follow this procedure to install the camera drivers on the administration workstation.
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