This certainly doesn't improve the quality, but when I tested it for webinars the quality was more than enough. There is digital to analog conversion an analog audio cable and then analog to digital conversion. The disadvantage could be the sound quality. Instead of the virtual BlackHole input and output you simply use the USB input and output. I use a Sandberg Sound Link ( ) but there are much cheaper options available and the shortest 3-pol cable that I found.

That's why I was looking for cheaper alternatives and came up with two solutions (both with hardware though) and a cost of about 10$-30$:Ī soundcard connected to the USB and a simple 3-pol cable that just connects the sound output and the sound input on the card. There is obviously other software such as Loopback available but for quite some cost and I personally liked working with BlackHole and would like to stick with it. I am using OBS+ and need BlackHole to route the monitoring audio to a virtual mic for using it with Zoom or others. Here is what I did to continue working in the mean time. In this case, the error appeared on a Linux when trying to upload code due to the drivers not being installed and the root permissions.It seems as if it would need some time to bring back BlackHole fully functioning to macOS Monterey. language:bashĪvrdude: ser_open(): can't open device '/dev/ttyUSB0': No such file or directory You may receive an avrdude: ser_open(): can't open device error similar to the output shown below. If you installed the drivers for the CH340 on your computer but have issues connecting via serial terminal or uploading code using the Arduino IDE, there may be an issue with your user settings preventing you from using the CH340. COM Port Not Available Windows, Mac, and Linux Users seem to be able to eventually get the board recognized by a combination of giving the computer time to finish the install ( close to 20 min), plugging the board back in multiple times, reinstalling the drivers, and/or resetting the computer multiple times ( repeat both steps).

Others have had issues where the installation process hangs.īased on the customer experiences, this might be specific to the manufacturer and are usually isolated cases. However, the board cannot be accessed on the Arduino IDE. We have had a few reports on Windows 10 where the driver will automatically install and the board will show up under a new COM port as USB-Serial CH340, but with a different device name. Troubleshooting COM Port is Not Showing Up as CH340 Windows

Virtual audio cable download chip