hello,
I am trying to use audio recorders to record line voltage noise. I essentially step down line voltage noise to a voltage <2V and use the 'Line In' on audio recorders to record it.
Used a tascam dr-40x and Marantz pmd 561. But what i observed is that tascam does not faithfully reproduce the waveform. see picture below. On the other hand, marantz does a good job(also see picture below).
Do you guys know what is the difference between the two. why is one doing better vs the other?
M2-Line voltage
C2-Playback from recorder
I am trying to use audio recorders to record line voltage noise. I essentially step down line voltage noise to a voltage <2V and use the 'Line In' on audio recorders to record it.
Used a tascam dr-40x and Marantz pmd 561. But what i observed is that tascam does not faithfully reproduce the waveform. see picture below. On the other hand, marantz does a good job(also see picture below).
Do you guys know what is the difference between the two. why is one doing better vs the other?
M2-Line voltage
C2-Playback from recorder