Loudness & Limiting
Gain staging, Glue + Limiter staging, soft clipping before the ceiling, true peak, LUFS targets per genre and platform, and when clipping beats limiting.
Loudness is the last thing you touch and the first thing people judge. In Live 12 the tools are modest but complete: Utility for gain staging, Glue Compressor for density, Saturator for soft clipping, Multiband Dynamics for tonal balance, and the Limiter (redesigned in 12.1) for the ceiling. The job is not "make it loud", it is "make it loud without the kick turning into a click and the sub into a square wave". That means headroom through the whole chain, a stage that handles peaks before the limiter sees them, and a meter that tells you integrated LUFS and true peak rather than the sample-peak lie on the master.
Concept
Three different numbers get called "loud". Sample peak (dBFS) is what the master meter shows and what clips a converter. True peak (dBTP) is the inter-sample reconstruction peak; a signal that reads −0.1 dBFS can hit +0.8 dBTP after a DAC or a lossy encoder, which is why streaming platforms ask for −1 dBTP. LUFS (integrated, short-term, momentary) is K-weighted average loudness, roughly what the ear hears. Platforms normalize to a LUFS target, so pushing a master from −8 to −5 LUFS buys nothing on Spotify (it gets turned down) and costs transients. Club systems and DJs do not normalize, which is why techno and dubstep still master hot.
The mechanical principle: every dB of peak you remove before the limiter is a dB the limiter does not have to remove with its own (audible) gain reduction. So the chain is a cascade of increasingly fast devices, each shaving a little: compressor (slow, tonal), clipper or saturator (instant, harmonic), limiter (lookahead, transparent only in small doses). Gain staging keeps each of those devices in the range where it was designed to work, which for Live's devices means peaks around −6 dBFS into any dynamics device.
Techniques
Gain staging the whole chain with Utility
Set levels at the source so faders sit near 0 dB and every bus peaks around −6 dBFS. Faders are for balance, Utility is for level.
- On every instrument track put Utility first. Play the loudest section, set Gain so peaks sit around −12 dBFS (Utility Gain range is ±35 dB, plenty).
- Keep every fader at 0 dB during sound design. Balance with Utility, not the fader, until arrangement.
- On groups: peaks around −6 dBFS, no exceptions. If the drum group is hotter, trim the drum tracks, not the group.
- Master: nothing on it until the mix is done. Master peaks should land around −6 dBFS with the fader at 0.
- Monitor at a fixed level (mark it on the interface). Loudness judgement is only consistent at consistent SPL.
| Stage | Target peak | Why |
|---|---|---|
| Instrument output | −12 dBFS | Leaves room for inserts that add level (saturation, Drum Buss Boom) |
| Group bus | −6 dBFS | Glue Compressor and Saturator curves sit in their sweet spot |
| Master pre-limiter | −6 to −3 dBFS | Limiter gain of 3–6 dB is the transparent range |
Glue Compressor + Limiter staging on the master
The default mastering skeleton: a slow bus compressor for 1–2 dB of density, then a limiter for 2–4 dB of peak control. Each does a little; neither does the whole job.
- Glue Compressor: Ratio 2, Attack 10 ms (lets kick transients through), Release Auto. Lower Threshold until the needle swings 1–2 dB on the loudest section and returns to zero between kicks.
- Makeup: match perceived level only, do not use it for loudness. Toggle the device on/off: it should sound tighter, not louder.
- Limiter: Ceiling −1.0 dB (true-peak safety for streaming; −0.3 for club-only masters). Lookahead 3 ms is the balance between transient preservation and distortion; 1.5 ms lets more punch through but can pump on sub-heavy material, 6 ms is smoother but blunts the kick.
- Raise Limiter Gain until the gain reduction meter shows 3–4 dB on the drops and near zero in breakdowns.
- Release: Auto for most material. Manual 50–200 ms for dense techno where Auto pumps on the kick.
| Parameter | Value | Why |
|---|---|---|
| Glue Attack | 10–30 ms | Below 3 ms it eats the kick click and flattens the groove |
| Glue Range | −∞ (off) or 6 dB | Range caps gain reduction so a breakdown/drop transition does not surge |
| Limiter Gain | +3 to +6 dB | Beyond 6 dB the Limiter is doing the clipper's job and sounds like it |
| Limiter stereo mode | Stereo (linked) | L/R independent mode shifts the image on every kick |
Saturator soft clip before the limiter
A soft clipper shaves the top 1–2 dB of kick and snare transients into harmonics the ear reads as "punch", so the limiter has less to do. This is the single biggest loudness trick in Live without third-party plugins.
- Saturator: pick Analog Clip for transparent peak shaving, Soft Sine for warmer, more obvious harmonic density. Avoid Digital Clip on the master unless you want it as a hard clipper (see clipping technique).
- Drive +1 to +3 dB. Output −1 to −3 dB to compensate; the goal is equal loudness, less peak.
- Switch Soft Clip on. It rounds the top of the curve so the harmonics generated are mostly odd-order and low-level.
- Watch the Limiter gain reduction fall by roughly the amount of Drive you added. If the kick sounds flatter, back off Drive; the transient was carrying the punch.
- A/B against bypass at matched level. Saturation always sounds "better" when it is louder; that is the trap.
| Parameter | Value | Why |
|---|---|---|
| Curve | Analog Clip / Soft Sine | Low harmonic count; Hard Curve and Sinoid Fold are for sound design, not mastering |
| Drive | +1 to +3 dB | Peaks only; the body of the mix should not touch the curve |
| Dry/Wet | 100% | Parallel saturation re-introduces the peaks you removed |
Clipping vs limiting for techno and dubstep
Club genres master at −7 to −5 LUFS and get there mostly by clipping, not limiting. The split: clip the drum bus hard, limit the master gently.
- Group kick and percussion (not the sub bass, not the music). Put Saturator at the end: Digital Clip, Soft Clip off. This is a hard clipper.
- Drive until the kick's peak loses 3–4 dB on the meter but the sound still reads as "kick". Hard clipping a kick at 130 BPM is standard; it adds the 2nd/3rd harmonic that cuts through a club system.
- Utility after to bring level back. Now the drum bus has 3–4 dB less peak at the same loudness.
- Sub bass stays unclipped (clipping a sine makes it a square: harmonics the sub speaker turns into mud). Use Glue or Compressor on the sub instead.
- Master: Analog Clip +1 dB, then Limiter for 2–3 dB. Ceiling −0.3 dB for club/vinyl-free delivery, −1.0 dB for streaming.
| Genre | Drum clipping | Master limiting | Target |
|---|---|---|---|
| Deep / dub techno | 1–2 dB soft | 2–3 dB | −9 to −8 LUFS |
| Peak-time / hard techno | 3–6 dB hard | 3–4 dB | −7 to −5 LUFS |
| Dubstep / 140 | 2–4 dB hard on drums, Roar on bass | 3–4 dB | −7 to −6 LUFS |
| DnB / neuro | 3–5 dB hard | 3–4 dB | −7 to −6 LUFS |
True peak safety without a true-peak limiter
If your limiter is not true-peak aware (check your version), you can still deliver −1 dBTP by leaving margin and reducing the content that creates inter-sample peaks: fast transients above 10 kHz and hard clipping edges.
- Set Limiter Ceiling to −1.5 dB (sample). Typical inter-sample overshoot after 3–4 dB of limiting is 0.3–0.6 dB; this leaves you under −1 dBTP.
- Bounce the master (File > Export, 24-bit, no normalize, no dither for a check bounce), import it on a new track, measure with a true-peak meter (an M4L loudness meter or your mastering tool).
- If the TP reading exceeds −1, the culprit is usually hard-clipped drums. Switch the drum clipper to Soft Clip on, or add 1.5 ms Lookahead on the Limiter.
- Export at 44.1/48 kHz 24-bit for distributors. Use dither (Triangular or POW-r) only on the final 16-bit bounce, never on 24-bit.
Multiband Dynamics as a mastering tool
Three bands, each with upward and downward compression. On the master it is a tonal balance tool: tame a low-mid build-up on the drop without touching the breakdown, or lift quiet air without boosting hiss everywhere.
- Set crossovers: Low/Mid at 100–150 Hz (just above the kick fundamental), Mid/High at 2.5–4 kHz.
- Low band, Above threshold: compress 2:1 with Time around 100 ms. Pull Threshold until 1–2 dB GR on the loudest bars. This stops the sub from eating the limiter.
- High band, Below threshold (upward): ratio below 1 lifts quiet material. Keep it under 2 dB or hi-hat tails and reverb noise come forward.
- Mid band: leave untouched unless you have a specific resonance problem; that is EQ Eight's job.
- Solo each band (the band solo buttons) to check you are not compressing the kick click in the high band.
| Parameter | Value | Why |
|---|---|---|
| Low band Time | 80–150 ms | Faster than the kick period at 130 BPM (460 ms) but slow enough not to distort the sub cycle (20 ms at 50 Hz) |
| Amount | 50–70% | Global depth control; keeps all bands subtle together |
| Soft knee | On | Mastering context; hard knee is for drum design |
Metering with Spectrum and a loudness meter
Live's master meter is sample peak only. Add Spectrum for tonal balance and a Max for Live loudness meter for LUFS and true peak; there are several free ones in the user library ecosystem and Ableton does not ship one in the core device set.
- Spectrum: Block 8192, slow averaging, 1/3 octave view. Compare your drop to a reference at matched LUFS: the slope should be similar (roughly −3 to −4.5 dB/octave for club music).
- Loudness meter: read Short-term LUFS on the drop (this is what you match to references) and Integrated over the whole track (what platforms use).
- Loudness range (LRA) tells you dynamics: 3–5 LU is typical for techno, 6–9 for trip-hop and dub.
- Reset the integrated reading before each full-track pass; a reading that includes a breakdown you looped five times is meaningless.
Reference comparison at matched loudness
Put reference tracks on an audio track routed around your master chain, trim them to your short-term LUFS, and flip. Level-matched is the only honest comparison.
- New audio track, drop two or three references of the target genre. Set the track's Audio To to your main outputs directly instead of Master.
- Utility: trim each reference so its short-term LUFS on the loudest section matches your mix (not the other way round).
- Solo-flip between mix and reference with the track's Mute. Listen for: sub weight, kick-to-bass ratio, 2–5 kHz presence, stereo width of the top end.
- Optional: EQ Eight on the reference track with HP 200 Hz and LP 200 Hz alternately, to compare only the sub or only the rest.
Settings / targets
| Destination | Integrated LUFS | True peak | Notes |
|---|---|---|---|
| Spotify / Apple Music / YouTube | −14 (normalized) | −1 dBTP | Louder masters get turned down; aim for −9 to −10 with dynamics intact rather than −6 crushed |
| Bandcamp / download / DJ pool | −8 to −6 | −0.3 to −1 dBTP | No normalization; genre loudness conventions apply |
| Club play from laptop (own set) | −9 to −7 (short-term on drops) | −1 dBTP | Leave headroom for the DJ mixer; the system limiter will do the rest |
| Vinyl cut | −12 to −10 | −3 dBTP | Mono below 150 Hz, no hard clipping, HF de-essing; the cutting engineer wants dynamics |
| Genre | Short-term LUFS (drop) | LRA | Character |
|---|---|---|---|
| Dub techno, deep techno | −10 to −8 | 4–7 LU | Glue, light clipping, long tails preserved |
| Peak-time / industrial techno | −7 to −5 | 2–4 LU | Hard drum clipping, dense |
| Dubstep / 140 / grime | −7 to −5 | 3–6 LU | Sub untouched, mids and drums clipped |
| DnB / jungle | −7 to −6 | 3–5 LU | Fast release limiting, breaks clipped |
| Trip-hop / dub / downtempo | −12 to −9 | 6–10 LU | Minimal limiting, dynamics are the point |
| Ambient | −16 to −12 | 8–15 LU | No limiter action except safety; ceiling only |
| House / tech house | −8 to −7 | 4–6 LU | Glue-heavy, mild clipping |
Common mistakes
- Limiter as the only loudness device. 8 dB of limiting sounds like 8 dB of limiting. Spread the work: sidechain, clipper on drums, Glue, then 3–4 dB on the Limiter.
- Judging saturation or limiting louder. Always match output level before deciding. Use Utility after the device for the comparison, or 12.3 A/B compare with the gains adjusted.
- Clipping the sub. A hard-clipped sine is a square; it loses fundamental energy and gains odd harmonics that make the low end sound thin and buzzy on a big system.
- Bass Mono on the master. Sum the low end per source (sub, kick, bass) where you can hear the consequence; a master-wide Bass Mono also collapses reverb and pad lows you may want.
- Mastering with the master fader below 0. Live's master fader is post-limiter; pulling it down hides the ceiling. Keep it at 0 and control level with Utility or Limiter Gain.
- Trusting the sample peak meter for streaming. −0.1 dBFS can be +1 dBTP. Leave margin or measure.
- No reference, or a reference at a different level. A reference 3 dB louder always sounds better; match it first.
- Lookahead 6 ms by default. It smears the kick on sub-heavy material. Start at 3 ms and listen to the transient.
Related
- Compression & glue — the bus compressor stage in detail
- Saturation & distortion — Saturator curves, Roar, Drum Buss
- Sidechain & ducking — buying headroom before the master
- Mid/side & stereo — mono low end for loudness
- EQ strategies — removing the low-mid build-up that eats the limiter
- Mix bus rack — the master chain as a rack with macros
- Listening checklist — what to check before export
- Roar & saturation — clipper types and curves