Hello,
Do you think I need a better usb sound interface for measuring impedance with Arta, I am using a cheap Texas instrument PCM2902. I am not sure if the headphone input is stereo but the data sheet says so.
Or do you think there is something wrong with my connection. I am following the design of the second pic.
Do you think I need a better usb sound interface for measuring impedance with Arta, I am using a cheap Texas instrument PCM2902. I am not sure if the headphone input is stereo but the data sheet says so.
Or do you think there is something wrong with my connection. I am following the design of the second pic.
Attachments
use a soundcard with line in / line out connectors
connect the speaker under test via a power amp
check out you setup/calibration with known value resistors first
connect the speaker under test via a power amp
check out you setup/calibration with known value resistors first
Hey thanks for replying happy Christmas I will get new sound card I guess, you think there’s any thing wrong with my connection I saw a similar setup but I don’t see where is the connection for the the mic ground in the below pic
