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DISTORTION RMS VALUE IN dBm

2015, 2015-P, 2016, 2016-P
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lakshmanakm
Posts: 4
Joined: February 21st, 2012, 4:31 am
Country: India

DISTORTION RMS VALUE IN dBm

Post by lakshmanakm » June 7th, 2012, 12:35 am

Hi,
I want to calculate the audio artifacts in dBm of the audio output of the media player at the time of bootup. Using keithley I have set the instrument to distortion measurement mode as follows.
*RST
:sens:func 'dist'
:sens:dist:type thd
:sens:dist:harm 2
:unit:dist:perc
:sens:dist:sfil none
:sens:dist:rang:auto on
:outp:freq 1000
:read?
:sens:dist:rms?

I'm not sure the above command sequence is correct. But my main intention is to calculate the audible artifacts when the media player powers up and there is no need to play audio from keithley.

Is there any way to get the rms and frequency pairs as a list?

Is there any way to get the rms in dBm with reference imp of 600 ohms?

Thanks in advance.

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