Tempo-Synced Delay Times for Tech House: The Complete Guide
Delay is everywhere in tech house — on hi-hats, vocals, synth stabs, and FX throws. When it's dialled in right, it sounds effortless. When it's wrong, it drags. This guide covers the maths, the values that actually work, and how to use them in a DJ set or a production session.
Why Delay Needs to Be in Time
Delay works by repeating a signal after a set number of milliseconds. When that repeat lands on the beat, it adds energy and space. When it doesn't, it fights with the groove — you get a smeared, confused sound that fatigues fast, especially in a loud club.
In tech house, where the groove is the centrepiece, off-time delay is immediately noticeable. Getting it right is one of the fundamentals.
The Formula
Every tempo-synced delay calculation comes from one number: the length of a quarter note (one beat) in milliseconds.
Quarter note (ms) = 60,000 ÷ BPM
At 128 BPM — the sweet spot for peak-time tech house — a quarter note is 468.75 ms. Everything else is a multiple or fraction of that.
Quick reference: 60,000 ÷ BPM = quarter note in ms. Multiply by 2 for a half note. Divide by 2 for an eighth note. Multiply by 1.5 for a dotted eighth.
Common Tech House BPM Range: Reference Table
Tech house typically runs between 124–132 BPM. Here are the most useful delay values across that range:
| BPM | 1/4 Note | 1/8 Note | 1/8 Dotted | 1/16 Note | 1/4 Triplet |
|---|---|---|---|---|---|
| 124 | 483.9 ms | 241.9 ms | 362.9 ms | 120.9 ms | 322.6 ms |
| 126 | 476.2 ms | 238.1 ms | 357.1 ms | 119.0 ms | 317.5 ms |
| 128 | 468.8 ms | 234.4 ms | 351.6 ms | 117.2 ms | 312.5 ms |
| 130 | 461.5 ms | 230.8 ms | 346.2 ms | 115.4 ms | 307.7 ms |
| 132 | 454.5 ms | 227.3 ms | 340.9 ms | 113.6 ms | 303.0 ms |
Blue = straight · Amber = dotted · Green = triplet
Straight, Dotted, and Triplet: What Each One Does
Straight delays
Land exactly on the grid. Clean, predictable, good for precise rhythmic effects — like a short 1/16th on a snare or hi-hat flam. Can feel mechanical if overused.
Dotted delays (×1.5)
A dotted eighth (1/8D) is 1.5× the eighth note value. This is the most commonly used delay in electronic music — it creates that classic rolling, syncopated feel where the repeat falls between beats instead of on them. John Summit uses it constantly. If you only memorise one value, make it the dotted eighth.
Triplet delays (×0.667)
Divide the beat into thirds instead of halves. Triplet delays add an organic, slightly swinging quality — less common in straight tech house but useful for breakdown FX or vocal processing. At higher volumes in a club, triplet delays can build real tension before a drop.
How to Use Delay in a DJ Set
Most DJ mixers and FX units let you sync delay to BPM automatically. But knowing the values manually gives you two advantages: you can dial in the exact subdivision you want, and you can use delay on gear that doesn't auto-sync.
- Transition throws: A dotted eighth delay on the outgoing track's lead element as you bring in the new track creates movement without fighting the incoming groove.
- Build tension in a breakdown: Drop the high-pass filter and add a quarter-note delay on a synth stab. Feedback turned up slightly. Pull it back before the drop.
- Vocal chops: An eighth-note delay on a stripped-back vocal sample turns a two-bar loop into something that feels like it's breathing. Classic tech house move.
Calculate delay times instantly
Type in your BPM and get every value — straight, dotted, and triplet — ready to copy.
How to Use Delay in a Production
In a DAW, most modern delay plugins have a sync button that locks to your project BPM. Even so, understanding the underlying values helps you make intentional choices rather than just scrolling through presets.
- Sidechain the delay return: Run your delay return through a sidechain compressor triggered by the kick. The delay ducks on every kick hit, keeping the low end clear while the effect still breathes in the spaces between.
- Automate feedback: Start a phrase with feedback at 20%, then automate it up to 60% over 4 bars, then cut it. Creates an escalating effect that builds without becoming uncontrolled.
- Layer a dotted eighth with a 1/16th: Two delay lines at different subdivisions, both synced, both at low feedback. The result sounds like a single, complex rhythmic effect rather than two separate taps.
- High-pass the delay return: Cut everything below 300–500 Hz on the delay return. This keeps the low end clean and makes the delay feel like air rather than mud — especially important on bass elements.
The Values Worth Memorising
You don't need to know every number. For tech house, these four cover 90% of situations:
- 1/8 Dotted — the workhorse. Rolling, syncopated, classic.
- 1/8 Straight — tight and rhythmic. Good for percussive elements.
- 1/4 Straight — spacious. Good for long throws and breakdown swells.
- 1/16 Straight — fast and urgent. Works on hi-hats and short vocal chops.
At 128 BPM those values are: 351.6 ms · 234.4 ms · 468.8 ms · 117.2 ms. Worth writing on a piece of tape on your mixer if you play live.