I am experimenting with using my MZ-RH910 to record telephone
interviews for use in radio features. I purchased a small telephone
line adapter from a spy supply store here in Toronto and it seems to
work pretty well. it seems to just have a telephone type plug on one
end and a mini-stereo jack on the other -- but the guy at the store
told me it actually had some electronics built into the mini-stereo
jack end.
anyway, after trying it with all sorts of combinations -- with
different telephones, with the Internet connected and disconnected,
with the USB to PC data cable connnected and disconnected (that seemed
to cause an enormous amount of static) here's what I"ve found. (I've
also learned to try to get the interview subject to use a fixed line
phone and not a cell or speaker phone.)
Using the Line In plug gives me the cleanest recording but very low
levels. (So I have to use the amplify effect in Audacity when I am
editing) and my voice is recorded at a much higher level.
Using the Mic In plg the levels are more balanced but the sound
quality is worse -- far too much static.
Question: what is the difference between the Line In and the Mic In
plug that I would be getting such radically different results, each
with their advantages? are they adapted for a different type of signal
or something? which should I be using for this application?
any suggestions for getting better results?