Hardware & signal path
DVS
A DVS — digital vinyl system — plays software tracks from real turntables or CD decks. A control record carries a timecode signal, an interface digitises it, and the software follows the position and speed of the platter.
In practice
When a DVS misbehaves, suspect the needle and the earth before you suspect the software.
Open the calibration display — every DVS has one — and look at the shape of the signal rather than at the track. A clean ring means the timecode is being read properly; a smeared or off-centre one is dust, a worn stylus, or hum getting into the chain. Learn the difference between absolute mode, where a position on the record maps to a position in the track so a needle drop jumps, and relative mode, where only speed and direction are read so a skip costs you nothing. Relative is the safer default on a rig you do not own.
The scope
Where to look first
Absolute or relative
The mode that decides a skip
Dust and earth
The usual culprits
Where these come from: Setup and troubleshooting practice for timecode rigs, not catalog figures — we analyse the audio in a track, not the signal path that plays it. For what we can measure, see the record carrying the signal.
Why it matters
It is the only way to keep the physical feel of vinyl with a digital library. The hand on the record does exactly what it always did; what changes is that the record underneath is not the music.
It also inherits every analogue problem. Dust, a worn stylus, a bad earth or a resonant booth all degrade the timecode before they degrade anything you can hear, so the first symptom of a physical fault is usually erratic playback.
Frequently asked
What does DVS stand for?+
Digital vinyl system. Turntables or CD decks control digital files through a timecode signal, so the physical handling stays exactly the same while the library becomes digital.
What do you need for a DVS setup?+
Turntables or CD decks, control records or CDs, a supported audio interface or mixer, and software that reads timecode. The interface is the part that is usually licensed rather than generic.
Why is my DVS skipping?+
Nearly always physical. A dirty or worn stylus, insufficient tracking weight, dust on the control record, or vibration from the booth reaching the platter — all of which corrupt the timecode before they affect sound.
Related terms
Timecode vinyl
Timecode vinyl is a record pressed with a control signal instead of music. DVS software reads that signal to work out where the needle sits and how fast the platter is turning, then plays a digital track to match.
Audio interface
An audio interface converts between the digital signal inside software and the analogue signal a mixer or amplifier accepts. In a timecode rig it also converts the other way, digitising the control signal coming off the turntables.
Slipmat
A slipmat is a felt disc between the turntable platter and the record. It lets the platter keep spinning while you hold, drag or pull back the record itself, which is what makes cueing and scratching possible.
Controller
A controller is a jog-wheel-and-mixer surface that drives DJ software on a computer. It sends control messages rather than making playback decisions, and usually carries the soundcard that turns the software’s output back into sound.
Explore: Mixing guides · Timecode vinyl · Pitch and tempo calculator · All DJ terms