Sound & signal
Transient
A transient is the short burst of energy at the start of a sound — the click of a kick, the snap of a snare. It is what makes percussion readable and what beat detection listens for.
Measured in our catalog
Percussive ratio — how much of a record is transient rather than sustained — runs at a median of 44 across 443,242 analysed tracks, spanning 3 to 73.
It is one of the few features here that is **not** clipped at either end, which makes it unusually well behaved to rank against: the top of the scale is a genuine maximum rather than a pile-up of ties. A high reading is a drum-led tool, a low one is pads and sustain, and the two layer together far better than either does with itself.
44
Median percussive ratio
3
Most sustained track
73
Most percussive
71,506
Tempo readings flagged
Measured on 11 August 2026 across public tracks carrying an analysed percussive-ratio value.
Why it matters
Transients are how you hear timing. The sustained part of a note tells you the pitch; the attack tells you exactly when it happened, which is why two records drifting apart is audible in the drums long before it is audible anywhere else.
They are also what analysis software tracks. A beatgrid is built by finding transients and inferring a regular spacing from them, which is why records with soft attacks or live drumming are the ones that grid badly.
Frequently asked
Why do transients matter for beatmatching?+
They are the part of the sound that carries timing information. Two records drifting apart is audible in the attack of the drums well before anything else gives it away.
What kind of track has weak transients?+
Anything built on pads, sustained chords or heavily reverbed drums. Those are also the tracks automatic beatgridding struggles with, because there is less for it to lock onto.
Do transients affect how two tracks layer?+
Yes, and helpfully. A percussive record and a sustained one occupy different space in time as well as in frequency, so they sit together far more easily than two of either kind.
Related terms
Beatgrid
A beatgrid is the map your DJ software lays over a track marking where every beat falls. Once it is right, sync, looping and quantise all work; once it is wrong, everything built on top of it is wrong too.
Texture
Texture is the tone of a track rather than its rhythm — how bright, how warm, how bass-heavy, how percussive. Two tracks can agree on key and tempo and still clash on texture.
Kick
The kick is the low drum that states the beat — in most dance music, on every one of the four beats in a bar. It carries the pulse and most of the energy a floor actually feels.
Beatmatching
Beatmatching is lining up two tracks so their beats land together — matching the tempo, then nudging the phase until the kicks coincide. It is the base skill every other mixing technique sits on top of.
Explore: How the analysis works · Texture · Beatgrid · All DJ terms