THD vs Level Stepped sine measurement not saved

[vasiliy]

THD vs Level Stepped sine measurement is "not saved", it is empty. Check out the screenshots attached. Empty distortion tab and one dot on the SPL and phase tab.
Looks like it happens when i have a spike in the distortion in the end of the measurement. No digital clipping yet. If i lower the volume on the source - it seems to save the measurement as usual.

 

[vasiliy]

by the way - it is totally expected for THD to grow in the end of the measurement. i want it to be on the chart up to 10+%.

 

[John Mulcahy]

Please attach an mdat file.

 

[vasiliy]

sure.

 

[John Mulcahy]

There is a tiny difference between the frequencies at the start and end of the test which caused the code to misinterpret the data as stepping in frequency. I'll send you a link to a test build with a fix via the conversations system.

 

[vasiliy]

seems to work now...

 

[vasiliy]

i guess not related issue...
i've marked "try smaller steps" and "stop at 1%". and it went well... until it got stuck in some kind of loop testing at the same level over and over again. i've looked at DBFS level - it did not change for quite a few measurement rounds. i had to manually stop it. is it expected?

 

[vasiliy]

also counter of measurements left (10/28) does not change.

 

[John Mulcahy]

Seems to work reliably for me. I'll send another test version that will log some additional info in case it happens again.

 

[vasiliy]

hm. did not happen with this particular version.