Rerurn to Romy the Cat's Site


In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: Please share Harmonic Spectrum of your AC 50hzPosted by Amir on: 11/24/2018
I use my Apogee Duet usb audio interface as cheap oscilloscope. trueRTA software has both spectrum analyser and oscilloscope mode.  The accuracy of spectrum analyser is good for looking at 50hz sine wave. the maximum input sampling frequency is 96khz/24bit (1/24 octave)
this the perfect 50hz sine wave generated by truerta :

I have read all 83 pages of this topic and i did not find any spectrum of main AC voltage.  (I have saved a summary of 83 pages in pdf and if it will be allowed then i will share it here)
for some reason i would like to look at spectrum of different members. if you have any AC regenerator or any isolation transformer or any AC filter please share your 50hz spectrum with/without them.

I live in complex and the Elecrtricity quality is not good. This is my wall 230Volt AC spectrum 24bit/48khz (1/12 octave).

When i use high wattage ohm loads i have no changes in spectrum but when i use switching psu i see 5-10db higher noise over 2khz. higher noise of switching psu (over 2khz) will affect on both audio and video quality but higher resistant load will not alter the sound quality.
please share your 50hz spectrum.

Rerurn to Romy the Cat's Site