While other inventors had produced devices that could record sounds, Edison’s phonograph was the first to be able to reproduce the recorded sound. A stylus responding to sound vibrations produced an up and down or feedback control of dynamic systems 5th edition pdf download-and-dale groove in the foil.
Vinyl records are still used by some DJs and musicians in their concert performances. The original recordings of musicians, which may have been recorded on tape or digital methods, are sometimes re-issued on vinyl. Professor Webster’s phonographic class”, and in 1859 the New York State Teachers Association tabled a motion to “employ a phonographic recorder” to record its meetings. UK and most Commonwealth countries ever since. Gramophone” generally referred to a wind-up machine.