Yesterday I`ve connected two
QSICC2 cameras with audio to QSTD5304 DVR (the two others are
QD28414W no audio). The written sound has a temporal noise (like crackling of a fire). I thought its of the ground i`ve connected but it wasn`t. I cant understand what i did wrong. I ve connected cameras as they were in instructions. Video to video and audio to audio.
A part of sound you can see in attachment. Please Can anyone help.