I'm trying to measure TS parameters of drivers by myself.
I'm using these videos as guides:
I have made the testing cable like instructed, checked it several times, resoldered the mic end a couple of times.
I have made successful measurements earlier with it, but now it just doesn't want to work anymore.
I usually had to restart my PC or switch sound cards (Realtek on Gigabyte x570 mobo or Asus Xonar d2x) to fix the problem and eventually I'd get it fixed, but not anymore.
I always get some type of this message with short circuit cal.
I have tried switching the channels, changing input and output volume in REW, changing bitrates (which somehow has also been a problem sometimes), switching sound cards, restarting, etc.
I had problems getting the open circuit calibration to work, but after a restart it seemed to work. Now I'm stuck on short circuit calibration, as I have been many times earlier and just given up...
Please help.
I'm using these videos as guides:
I have made the testing cable like instructed, checked it several times, resoldered the mic end a couple of times.
I have made successful measurements earlier with it, but now it just doesn't want to work anymore.
I usually had to restart my PC or switch sound cards (Realtek on Gigabyte x570 mobo or Asus Xonar d2x) to fix the problem and eventually I'd get it fixed, but not anymore.
I always get some type of this message with short circuit cal.
I have tried switching the channels, changing input and output volume in REW, changing bitrates (which somehow has also been a problem sometimes), switching sound cards, restarting, etc.
I had problems getting the open circuit calibration to work, but after a restart it seemed to work. Now I'm stuck on short circuit calibration, as I have been many times earlier and just given up...
Please help.
I have a similar issue, however REW seems to think I have mono inputs.
I know what this means, however I cannot track down the source... 🤷♂️
I know what this means, however I cannot track down the source... 🤷♂️
The REW Preferences panel should correctly identify the soundcard you are using, and the driver being used (eg. preferably an ASIO driver), and the output should select the line/headphone output channel you are using for the impedance jig, and the two input channels should be correctly identified, with Channel A being the input taking the direct loopback signal, as shown in the Impedance measurement Help notes within REW. You may need to confirm a test tone is correctly generated and measured by a meter on your selected output channel, and similarly that a loopback test to channel A shows up as a measured signal (and likewise changing to a channel B input and doing a loopback to channel B also shows up a clean signal). For each of those loopback tests you should confirm that a loopback measurement shows a flat line gain and phase response when using a prepared calibration file for direct loopback.
I have given up and am looking at just buying a cheap calibrated mic. My understanding is that if you have a calibrated mic REW will work.
Just not sure if the Sony or dayton audio units will work.
Just not sure if the Sony or dayton audio units will work.
