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19th November 2010, 08:14 PM
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diyAudio Member
Join Date: Jul 2010
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Anyone using SpeakerWorkshop for power amplifier distortion testing ???
Im not sure how to set up SW for this, but with my jig in loop mode, with a 1Khz sine signal, i selected spectrum at 1 pwr/freq and set ranges to 1 to 20K Hz.
The result (which i assume is a measure to the soundcard) was 2.6% at 5Hz and then drops down above this. What if i use this looped curve as a calibration file to subtract it from an amp under test curve, this should give me the data for the amp... By the way, I dont know if this section of SW is functioning anyway. |
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