phonautogram

As nouns the difference between phonautograph and phonautogram

is that phonautograph is one of the first phonographic recording devices, consisting of a horn or barrel focusing sound waves onto a membrane to which a hog's bristle was attached, causing the bristle to move so enabling it to inscribe a visual medium, which could transcribe sound to a visible medium but had no means to play back the sound after it was recorded while phonautogram is a recording made with a phonautograph.

As nouns the difference between recording and phonautogram

is that recording is a reproduction of sound and/or video, stored in a permanent medium while phonautogram is a recording made with a phonautograph.

As a verb recording

is present participle of lang=en.