Question 1

Will this work with linux? specifically the raspberry pi.

Accepted Answer

I bought this as a cheapo capture line-in for my Raspberry Pi 3b running Raspbian. This device is only 16-bit, and I was unable to get anything but mic-in working, but that's okay, it's acting as line in.  I also had to use alsamixer, chose capture, and then the mic input. It still captures stereo and gain can be adjusted with your alsamixer, but you'll probably have to create a boot script to make those settings permanent. I'm not replying to the original question, just adding info based on my experience. Still, did the job I needed.. would like 24-bit, but oh well.

Question 2

Did everything right but can't get front lt an rt speakers to work i know set up is right cause they worked once. Any suggestions?

Accepted Answer

1-Test outputs with a set of headphones or speakers that you know work maybe test them with your phone, ipod, etc.2- Restart computer, make sure a working usb cable is connected on both ends same goes for headphone cables , may sound a little condescending but its happened to the best of us.  3- Make sure drivers are installed (the folder on disc called something like CM6206-LX you can download from http://www.cmedia.com.tw/EN/DownloadCenter_Detail2.html you will have to register by putting a user name and password i had to enable pop ups for the website to be able to download)4- Check if the device is set as default "PLAYBACK DEVICE" by right clicking on the speaker icon in the on the lower right corner of your desktop next to clock and selecting "PLAYBACK DEVICES" (you will have 3 to 4 options) and select something like "USB multi channel audio device", im sorry but i dont have it in front of me, but i will tell you that the device will give you two options one analog and one digital which is for the optical out (the one with the plastic plug), you want to select the ANALOG for the standard headphone plugs.5- If this doesn't work you may have a faulty device

Question 3

i want to save two different sound simultaneously can i use this card?(i want two sound desperately not mixed- for DJ things)

Accepted Answer

I doubt it. The inputs are probably only used to mix a signal to the USB output which is then connected to your computer for recording. Your best bet is to record the two different sounds separately if you can separate them before they enter this unit.

Question 4

Clairify please. does the "driver" for this chipset support "stereo mix"? stereo mix captures audio and pipes it to supported applications. (audacity)

Accepted Answer

Stereo mix is supported, at least under Windows 7!In case you have a device without this capability, you can always install a virtual audio cable driver:  http://vb-audio.pagesperso-orange.fr/Cable/

ASIN	B00Q4WQ7XW
Audio Output Mode	Surround
Best Sellers Rank	#53 in External Sound Cards
Brand	Optimal Shop
Compatible Devices	Personal Computer, Laptop
Customer Reviews	3.8 3.8 out of 5 stars (590)
Hardware Connectivity	USB
Hardware Platform	Laptops, PC, Speakers
Item Dimensions L x W x H	3.46"L x 2.36"W x 0.79"H
Item Weight	0.25 Pounds
Manufacturer	Optimal Shop
Maximum Sample Rate	48 KHz
Mfr Part Number	Optimal Shop
Model Number	6478484
Platform	Windows 7, Windows 98
Signal-to-Noise Ratio	120 dB
Surround Sound Channel Configuration	5 1
UPC	799637908796

USB 2.0 External Sound Card 6 Channel 5.1 Surround Adapter Audio S/PDIF for PC -Blue

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