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Old 23rd November 2012, 01:14 AM   #801
Pano is offline Pano  United States
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My mistake, I was looking at H4.

Here is the plot. For H4 and higher harmonics they are all below -90 and all match live and imported. What do you see on the higher order harmonics?
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Old 23rd November 2012, 08:12 AM   #802
xstreme is offline xstreme  Europe
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Quote:
Originally Posted by Pano View Post
Oh, I just discovered something strange. If I start the graph lower, like 2Hz, the distortion displays lower. Odd.... will do some testing and report back.
My configuration file (zip attach)
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Old 23rd November 2012, 02:23 PM   #803
Pano is offline Pano  United States
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Thanks for the config file. I can't load it because you have a later version of HOLM than I.
Yours reports V 1.4.2.6 and mine is 1.4.2.0 I didn't know there was a later version. Is yours for 64bit?

Anyway, the config.xml looks different enough not to work. And maybe it's a version difference between mine and your that is at the root of the differences we see.
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Old 23rd November 2012, 05:21 PM   #804
xstreme is offline xstreme  Europe
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Quote:
Originally Posted by Pano View Post
Yours reports V 1.4.2.6 and mine is 1.4.2.0 I didn't know there was a later version. Is yours for 64bit?
...the differences we see.
ok, now i try the old version and yes i have a 64 bit (on Windows 7)...
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Old 23rd November 2012, 05:35 PM   #805
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That may be the reason. I might be able to test it on Win7 64bit on Monday or Tuesday.
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Old 23rd November 2012, 09:34 PM   #806
xstreme is offline xstreme  Europe
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Originally Posted by Pano View Post
That may be the reason. I might be able to test it on Win7 64bit on Monday or Tuesday.

today i've tried the old release, this is the screen grab...and the .zip config file.
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File Type: zip Configuration.zip (1,014 Bytes, 2 views)

Last edited by xstreme; 23rd November 2012 at 09:37 PM.
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Old 9th September 2013, 07:05 PM   #807
jareks is offline jareks  Poland
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Hi,

In first I want to congratulate You - amazing project!


I use Speaker Workshop. In SW pattern signal for left channel is compare with signal from Right channel (signal from microphone).
After this compare You get chart in your screen. Before measurement you must calibrate Speaker Workshop - inpute amplitudę must be about 16k.

Could You tell us how it's work in HOLMimpulse?
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Old 12th September 2013, 07:31 AM   #808
Hrmmf is offline Hrmmf  Denmark
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Simlple question - or not?

So, I need to do some high frequency measurements with band pass form 1000-10000Hz

How do I set these band limited measurements?

/Thomas
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Old 12th September 2013, 08:01 AM   #809
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Hi Thomas, you can limit the lower frequency during the measurement if you choose a logarithmic sine sweep. Go to the Device and Signal tab and select Logarythmic Sine sweep, and then set the starting frequency to 1000.

I thought that you could set a low and high pass on the measurements tab (post measurement) but it doesn't seem to be having an effect. Perhaps try setting it before you measure and see what you get.

Tony.
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Old 12th September 2013, 10:22 AM   #810
Hrmmf is offline Hrmmf  Denmark
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Hi Thomas, you can limit the lower frequency during the measurement if you choose a logarithmic sine sweep. Go to the Device and Signal tab and select Logarythmic Sine sweep, and then set the starting frequency to 1000.

I thought that you could set a low and high pass on the measurements tab (post measurement) but it doesn't seem to be having an effect. Perhaps try setting it before you measure and see what you get.

Tony.
Thank you, Tony!

Works like a charm

/Thomas
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