Hi John and all,
Am working on a 2-way active speaker and using VituixCAD with REW. Was using a UMIK-1 and now trying to move to an EMM-6 mic so I can sync individual driver measurements. As audio interfaces go, have tried both a SoundBlaster Audigy FX and a QuantAsylum QA401. Naturally, the QA401 is much better but getting the same issue with phase measurement in either case. Have also tried both Java and ASIO drivers and the released and Beta versions of REW.
Here is a look at the results of SPL & Phase sweep (also showing the soundcard and mic calibrations)...
The frequency plot is as expected, but phase is jagged as shown in the lower half. Since I forgot the legend, sound cal is the dotted line and the mic is the solid black line.
If I switch to "no timing" I get the expected phase plot (in this case for a Purifi 6.5 midwoofer)..
Please help so I can finish this project.
Thanks!
Rick
Am working on a 2-way active speaker and using VituixCAD with REW. Was using a UMIK-1 and now trying to move to an EMM-6 mic so I can sync individual driver measurements. As audio interfaces go, have tried both a SoundBlaster Audigy FX and a QuantAsylum QA401. Naturally, the QA401 is much better but getting the same issue with phase measurement in either case. Have also tried both Java and ASIO drivers and the released and Beta versions of REW.
Here is a look at the results of SPL & Phase sweep (also showing the soundcard and mic calibrations)...
The frequency plot is as expected, but phase is jagged as shown in the lower half. Since I forgot the legend, sound cal is the dotted line and the mic is the solid black line.
If I switch to "no timing" I get the expected phase plot (in this case for a Purifi 6.5 midwoofer)..
Please help so I can finish this project.
Thanks!
Rick
Last edited: