REW5.20.4 HI PASS Not working..

[2631378999]

Hi John~
Today i trying to use a soundcard to measurement impedance,but looks like hi pass not working on measurement(but works on levels),so i can"t do imp cal. It will be great if hi pass works again

 

[John Mulcahy]

Did you select the High Pass input option on the REW soundcard preferences? Why haven't you selected the input or output?

 

[2631378999]

Did you select the High Pass input option on the REW soundcard preferences? Why haven't you selected the input or output?

I did all，input hi pass checked on the prefences,input is line in L,reference input is line in R,out put is line out L.

 

[2631378999]

Did you select the High Pass input option on the REW soundcard preferences? Why haven't you selected the input or output?

i just try to use 5.20.3, impedance can be calibrate and measurement.input level meter on measure page looks same.i don't know why it works,let me try more and tell you

 

[John Mulcahy]

5.20.3 doesn't make the validity check, that doesn't mean the result is valid. Hi pass seems seems to work normally for me.

Again, why you haven't made any input or output selections on the REW soundcard preferences?

 

[2631378999]

Did you select the High Pass input option on the REW soundcard preferences? Why haven't you selected the input or output?

now,im sure about some thing:
(1)5.20.3 impedance calibration and measurement is working,
(2)5.20.4 fail on impedance short calibration,i don't know why.
(3)“hi pass” is working,but level meter display on measure page looks wrong.



And have some suggestions. LPF and HPF should be added and the frequency can be set. This function is required for noise measurement（like 20hz~20 000hz）

 

[2631378999]

5.20.3 doesn't make the validity check, that doesn't mean the result is valid. Hi pass seems seems to work normally for me.

Again, why you haven't made any input or output selections on the REW soundcard preferences?

I did made input and output selections on the REW soundcard preferences ，but some times，it is not show on the measure page.i did again.
and you right,5.20.3 doesn't make the validity check, that doesn't mean the result is valid.
i think someting wrong with this soundcard,not just DC .

 

[John Mulcahy]

I have worked out why the level meter display on the Measure dialog is not taking the HP into account and fixed that for the next build.

The RTA has LP and HP options in the Distortion settings.