History of Multitrack Recording
The everlasting quest for more and more sophisticated mediums for storing sound was long and eventful. It all started with the simple membrane attached
to the moving stylus that recorded simple data about sound and spoken word that was produced by innovative French book keeper Édouard-Léon Scott de Martinville in late 1850s. Ever since then inventors strived to perfect his device, adding new ways to improve the sound, make the recordings
last longer, storage medium more durable and easier for manufacture. Era of electricity and extensive research into magnetism enabled the creation of
magnetic recording, and that era was the first who introduced us with ability to infuse multiple simultaneous playing tracks into one storage medium.
This was multitrack recording.
Multitrack recording was first discovered during 1930s for testing purposes, but it was implemented on the wide scale by German audio engineers during
the height of the Second World War. It consisted of two streams of data that was imprinted on the magnetic surface of the tape by the two recording
heads that converted data from two audio streams into magnetic field. Movement of the tape near those recording heads produced two
perfectly synchronized streams of magnetic data that could without a problem be converted back into the electricity with the help of
two playback heads.
After the end of the Second World War, German multitrack technology found its way to the America, where John T. Mullin managed to
adapt tape recorder and showcase it to the Hollywood movie executives. From there on, popularity of the magnetic tapes started soaring, but it was
efforts of the famous composer and technician Les Paul in early 1950s enabled the most crucial advancement that enabled magnetic tapes to become standard for music consumption and recording in the world. His experimentations with electric guitar (instrument that mostly became
popular because of him) led him and music engineering company Ampex to creation of eight track studio recorder, which enabled him to
record instruments separately and mix those elements into one cohesive composition. Seeing the possibility of this innovation, Ampex soon released
commercial version of tree track tape recorder, which enabled musicians to record the stereo channels for the musical instruments and central channel
for a singer. This configuration remained in very popular use until mid-1960s, when four track recordings were introduced and popularized by The
Beatles and The Rolling Stones, and also enabled technicians to create first instance of 360 degrees "surround" sound (a feature that became truly
accepted by the public only in currently active digital era of music).
Until 1963 all methods of recording and playback of magnetic audio tapes were performed with open tape reels. All that changed with
the innovation from the Dutch electronics giant Philips that became absolute standard for a carrier of musical data - cassette tape.
Other improvement of this multitrack recording medium came with the introduction of much improved sound range and signal to noise ratio that was made
by Dolby Laboratories in 1970s, and the worldwide craze that came with the release of Sony's portable pocket cassette player - Walkman in 1978.
In today modern times, audio engineers most commonly use 24 tracks for recording a song.