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Click track

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Click track

Example of a basic 4/4, 120 BPM click track

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A click track is a series of audio cues used to synchronize sound recordings, sometimes for synchronization to a moving image. The click track originated in early sound movies, where optical marks were made on the film to indicate precise timings for musical accompaniment. It can also serve a purpose similar to a metronome, as in the music industry, where it is often used during recording sessions and live performances.[1]

Contents

  • History 1
  • Techniques 2
  • Criticisms 3
  • See also 4
  • References 5
  • External links 6

History

The click track was sufficiently useful as a synchronization tool that it became part of standard recording technology, whether for films, radio or other sound recording and the click track was applied to one of the tracks on a multi-track tape recorder. By the late 20th century, particularly in the realm of sound synthesizers and digital recording, the click track became computerized and synchronizing different instruments became more complex, whereupon the click track was largely supplanted by SMPTE timecode.

Click tracks were also once very important in the creation of accurately timed music such as radio/TV spots (commercials) and other timed production music. In this type of use a rhythm section or ensemble would play all instruments to a click track. With the use of MIDI sequencing in the '80s and '90s it became possible to build an entire music track that was accurately timed without depending solely on only a click track. Computer based MIDI sequencing programs are still used in the creation of music. The MIDI sequencer generated track can be used with only MIDI controlled instruments or embellished with real instruments played by musicians. The musicians who embellish the tracks created with MIDI sequencer essentially play along with the already timed piece of music. In many cases all of the MIDI instrumentation is replaced by actual musicians.

Techniques

Example of a subdivided 4/4, 50 BPM click track

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The click track may be used as a form of metronome directly by musicians in the studio or on stage, particularly by drummers, who listen via headphones to maintain a consistent beat.[1] One can think of a click track as essentially being a kind of metronome except that it is fed through headphones to one or more of the musicians during a recording or performance. It is also not uncommon for musicians or engineers to subdivide click tracks at slow tempos[1] (for instance, below 70 BPM) into smaller parts, with, e.g., a click on the start of a bar and a beep on every individual 1/4 (or 1/8, or 1/16, etc.) note.

The practice of recording using an aiding click track is contrary to the practice of using a metronome during practice and then turning it off come time for a performance or recording, which has traditionally been more common in the past. The use of a click track allows for easier editing in a digital audio workstation (DAW) or music sequencer, since various parts can be easily quantized and moved around or spliced together without worrying about minute differences in timing. Click tracks are especially useful to modern "one man bands" who may use a multi-track audio editor to perform all or many of the different parts of a recording separately.

Click tracks can also aid live bands that want to synchronize a live performance with things like prerecorded backing tracks, pyrotechnics and stage lighting.[1]

Criticisms

Use of a click track without a tempo map does not allow a natural shifting of tempo that would be vital for expressive phrasing and instances of fermata, accelerando, ritardando, etc.

  • "And many recent recordings of pop music demonstrate how music is killed by a metronome for they are as square as a draftsman's T. For the convenience of recording engineers, each player has to record their part on a separate track while listening to a click track – a metronome – and the clicks are then used to synchronize the tracks while the technicians adjust them to their taste and mix them. I know talented young musicians who can't do it; we can understand why. Nothing compares with a recording of a live performance in which the players provide each other with the time-framework.[...] if you want to kill a musical performance, give the player a click track!"[2]
— James Beament; How we hear music: the relationship between music and the hearing mechanism

When there is no need to post-process the music with it properly fitting up to a tempo grid in a DAW, it can be reasoned that there is thus no need to record or perform to a click track, particularly if the band is good at keeping together rhythmically and particularly if they are musicians who are experienced with tempo-alteration and musical phrasing. Although it is possible to create "click maps" (pre-programmed click tracks designed specifically for a song or musical presentation that changes tempo and/or meter throughout), much live music can benefit from natural shifts of pace (tempo) between different sections of a song or piece of music.

See also

References

  1. ^ a b c d Gavin Harrison (August 2003). "Creating Click Tracks For Drummers". Sound on Sound. Retrieved 8 June 2011.
  2. ^ Beament, James. How we hear music: the relationship between music and the hearing mechanism; p. 146.
  • From the glossaries: BBC and about.com

External links

  • Clickbook for sync-point composing – An online available tool to calculate click-tracks to synchronize the music with the film
  • What is a click track? – A thorough explanation
  • musicmachinery.com – In search of the click track
  • ClickTracks, iOS app
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