Chapter 33 Exercises

This is a measurement chapter, so the set has more arithmetic in it than usual — and every drop of that arithmetic exists to serve a listening decision, so the Listening Lab and DAW Lab carry the real weight. You'll need: your printed master from the Chapter 32 checkpoint (plus the deliberately hotter control print, if you kept it — you were told to keep it), your three reference tracks from Chapter 4 as files you can analyze, a loudness meter that reads integrated LUFS and true peak (your DAW almost certainly ships one as of this writing — Appendix E has the stock names — and excellent free third-party meters exist), your listening journal, and a streaming app with a normalization toggle if you have one.

Three ground rules. First: integrated means whole-file. Any exercise asking for an integrated reading requires the entire file played through the meter or an offline whole-file analysis; a mid-song glance at the I number is a measurement still under construction, and logging it is logging a guess. Second: the meter is a measuring tape, not a compass. No exercise below asks you to process audio toward a LUFS number while listening — where conforming to a target is required (the podcast exercise), you process, then measure, then adjust, then measure again. Third: every comparative listen happens at matched loudness — which in this chapter you can finally do with instruments instead of guesswork: measure, compute the offset, trim. No exceptions; this chapter is literally about what happens when the matching is done for you.

Difficulty runs ⭐ (warm-up) to ⭐⭐⭐ (will make you sweat productively). Time estimates are honest averages. Exercises marked [A] have worked answers in the Answers to Selected Exercises appendix — try first, check after.

Part A: Conceptual Understanding

A1. The four-decibel family. ⭐ · 10 min · [A] Without looking at the chapter's table: define dB SPL, dBFS, dBTP, and LUFS — one sentence each — and name the chapter where each entered your vocabulary. Then catch the error in this sentence from a forum post: "My master peaks at -14 dBFS so Spotify won't touch it." There are at least two confusions in it; name both. (Appendix B holds the full decibel map if you want to check your work.)

A2. Three windows, three questions. ⭐ · 5 min · [A] Momentary, short-term, integrated: state the window each uses, the question each answers, and one concrete production task where each is the right meter to watch. Then: which one does platform normalization use, and why would the other two be unusable for that job?

A3. The gate, explained to a drummer. ⭐⭐ · 10 min · [A] Your drummer hears that "Spotify measures the average loudness of the whole song" and panics: the band's new single opens with 40 seconds of brushed-cymbal ambience before the full kit enters, and he's convinced the intro will "drag the average down and get the loud part turned up into distortion or something." Write the reassurance in plain words: both gate stages, what each throws out, what number the song will actually report, and what will and won't happen at playback. Bonus: explain what loophole the relative gate exists to close.

A4. PLR arithmetic, three ways. ⭐ · 10 min · [A] (a) A master reads -1.0 dBTP and -9.0 LUFS integrated: compute PLR and name its neighborhood. (b) A master has PLR 14.5 dB and true peak -1.5 dBTP: what's its integrated loudness? (c) Two masters both read -11.0 integrated; one reads -1.0 dBTP, the other -4.0 dBTP. Same loudness — so what's actually different between them, and which probably met a gentler limiter?

A5. Normalization offsets. ⭐⭐ · 10 min · [A] A platform's reference is ≈ -14 LUFS (as of this writing; platforms change these). For masters measuring -7.8, -11.2, -14.0, and -17.5 integrated: state what offset each receives on a turn-down-only platform, what each plays back at, and which master's experience differs most depending on whether the platform also turns quiet tracks up. Then the judgment question: which of these four numbers tells you anything is wrong — and what would you check before deciding?

A6. The war's engine, named precisely. ⭐⭐ · 10 min Explain — using Chapter 4's equal-loudness curves and the game theory from this chapter — why the loudness war was individually rational and collectively ruinous, and why unilateral disarmament failed. Then state exactly what normalization changed in that game: which comparison got matched, where, and by whom.

A7. Does/doesn't. ⭐ · 5 min · [A] Two columns in your journal: what normalization CAN change about your track, and what it CANNOT. Aim for at least five entries on the cannot side. One entry on the can side is enough — that's rather the point. Then add the one hedged exception where a platform may apply actual processing, and when it triggers.

A8. Aisha's spec sheet. ⭐⭐ · 10 min A friend launches a podcast and asks you for "the loudness settings." Write the working spec as of this writing — integrated target with the stereo and mono conventions, the true-peak ceiling, the segment-consistency rule and which meter reading polices it — and then the sentence that matters more than every number: what's the actual goal of podcast loudness practice, in one line?

Part B: 🎧 Listening Lab

Volume-match every comparison by ear or by meter before judging it — this chapter gave you the instruments, so use them. Fresh ears, Chapter 4's hygiene rules. Where named records are suggested, substitutes from your library are fine if they fill the same role.

B1. Death Magnetic, both verdicts. ⭐⭐ · 25 min · [A] After reading case study 1: play two or three tracks from Metallica's Death Magnetic at moderate level and log what you hear in symptom vocabulary — transient condition, sustain texture, the timestamp where fatigue first registers. Then play anything from the band's earlier catalog (...And Justice for All or the Black Album era), volume-matched by ear, and log the same three observations. Finish with the honest question the case study raises: name one thing the 2008 master bought — there was a real product; the war wasn't run by fools — and one sentence on whether that purchase survives normalized playback.

B2. The remaster hunt. ⭐⭐ · 30 min Find one album you can hear in two masterings — an original release and a later "remastered" edition. (The Beatles' 1987 CDs versus the 2009 remasters is a widely discussed pair if you have access; any catalog album with a deluxe reissue works, and streaming services often carry both.) Volume-match the pair by ear, then compare one song section by section: transients, sectional lift, fatigue. Journal the verdict — better, or just louder? — and note that some remasters genuinely are better (tape transfers improve); your job is judging this one, not the category.

B3. The normalization toggle. ⭐ · 20 min · [A] If your streaming app exposes a normalization setting (several do, as of this writing): build a playlist crossing eras and genres — a 1970s master, an 1980s pop record, a 2008-era slam, a current single, something acoustic. Play it with normalization OFF, hands off the volume knob, and journal every lurch. Then the same playlist with normalization ON. Write three sentences: what changed, what didn't change within each track, and what this feature is doing in this chapter's vocabulary.

B4. Dynamics survival, matched. ⭐⭐ · 25 min Pick a famously dynamic modern master (Daft Punk's Random Access Memories remains the standard exhibit — "Giorgio by Moroder" especially) and a dense modern hit from your own genre. With normalization on — or matched by hand using your meter and trims — A/B them and journal which feels bigger at the same loudness, and specifically why: where do the drums sit relative to the body on each? You're listening for the chapter's claim that PLR is what survives the level match. Verify it or argue with it; both are good journal entries.

B5. The podcast consistency audit. ⭐⭐ · 25 min Three podcasts, two minutes each, one listening session, volume set once at the start and never touched. Journal: did any show force you toward the knob? Where — between shows, between voices within a show, between music bed and speech? Then audit one episode more closely: intro music versus host versus guest. Describe each failure in this chapter's terms (integrated mismatch between shows; short-term mismatch between segments). If all three pass, say so — knowing what correct sounds like is the rarer skill.

B6. The stats receipt. ⭐ · 15 min · [A] On the video platform that displays its loudness math (as of this writing — the player's stats readout, the line called content loudness): check five tracks across genres and eras. Log each reading and decode it: what did the platform measure, relative to what, and what did it do about it? Find one track showing a large value and one near zero, and connect what you hear on each to the number you're reading.

B7. Your genre's loudness culture, by ear first. ⭐⭐ · 20 min Before you measure anything (that's C4), rank your three Chapter 4 references by density — by ear, volume-matched: which presses most, which breathes most, where does each chorus sit relative to its verse? Write the predicted order and predicted rough PLR neighborhoods down. You'll check the predictions against the meter in the DAW Lab, and the gap between your ear's ranking and the meter's numbers is the calibration data this chapter wants you collecting.

Part C: 🎛️ DAW Lab

C1. Your master's passport. ⭐ · 20 min · [A] The Project Checkpoint, executed as an exercise: whole-file analysis of your Chapter 32 master. Log integrated LUFS, true peak, PLR (do the subtraction yourself once before letting the meter do it), and LRA. Then run gate one: true peak ≤ -1.0 dBTP — if it fails, back to the Chapter 32 limiter, true-peak detection on, re-bounce, re-measure, and write down what the fix cost (usually: nothing audible, which is the lesson).

C2. The three-masters experiment. ⭐⭐⭐ · 90 min + a few days for verdicts · [A] Case study 2, on your own track — the chapter's centerpiece exercise. Reopen your mastering session. Print three versions varying only the limiter push: your keeper as-is; a deliberate slam pushed well past your last better (build it honestly — ceiling respected, the best slam you can make); a breather with the push backed off to nearly nothing. Measure all three whole-file; log the passports. Simulate normalization: trim each to play at a ≈ -14 reference, turn-down only. Blind them — nonsense names, a key file, ideally a different shuffle per listener — and recruit at least two jurors besides yourself, each on their own normal playback setup, whole track, volume set once. Collect scores (punch / size / fatigue / playlist pick, one sentence why). Decode, tally, and write the ledger: what each master bought, what each paid, and your settled target with one sentence of justification. This is the single highest-value evening in Part VII.

C3. True-peak hunting. ⭐⭐ · 25 min · [A] Build yourself an inter-sample over on purpose, so you recognize the species: take any dense master or loud mix, set a limiter's ceiling to -0.1 with true-peak detection OFF (sample-peak mode), push it hard, and bounce. Measure the bounce with your loudness meter: sample peak versus true peak. Where did the true peak land? Now re-bounce with the ceiling at -1.0 dBTP, detection ON, and re-measure. Optional coda if your DAW can export a lossy file: encode both bounces to a compressed format, re-import, and measure the true peaks again — journal what the encoder did to each, and connect the result to why the decibel of margin exists.

C4. Reference cartography. ⭐ · 20 min · [A] Whole-file analysis of your three Chapter 4 references: integrated, true peak, PLR each. Check them against your B7 by-ear predictions and against your own master's passport. Three journal lines: your genre's measured loudness neighborhood, its measured PLR neighborhood, and where your master sits in the family. (If a ref is only available to you through a streaming rip, note that its numbers are approximate and lean on the comparisons rather than the absolutes.)

C5. The normalization bus. ⭐⭐ · 30 min Build a playback simulator in your session: your master plus your three refs on four tracks, each trimmed by hand to a common ≈ -14 playback loudness using the offsets you computed in C4 (turn-down only; leave anything quieter than reference alone). Now run Chapter 32's playlist test in the normalized world: shuffle, listen, and journal whether your track announces itself as the guest — and on what axis (tone, punch, width, density), since level is now off the table by construction. This is the playlist adjacency your release will actually live in.

C6. The -16 podcast conform. ⭐⭐ · 30 min · [A] Take any speech recording you own — a voice memo, a Chapter 11 outtake, a real episode if you produce one — and deliver it to the podcast convention as of this writing: ≈ -16 LUFS integrated stereo, true peak ≤ -1.0 dBTP. Process first (your Chapter 22–23 voice chain: subtractive EQ, leveling compression), then measure, then adjust overall gain, then re-measure — a touch of limiting only if the true-peak gate demands it. If your source contains two voices or a music bed, hold segments within about 1 LU short-term of each other. Log the before/after passports and one sentence on what the leveling chain did that the gain trim couldn't.

C7. The sectional read. ⭐ · 15 min Play your master watching the short-term meter only. Log the reading per song section — verse, pre, chorus, bridge — and sketch the result as a little energy curve with numbers on it. Compare against Chapter 16's intent: is the lift you arranged still measurable on the master? If the meter shows a flat line your arrangement didn't ask for, you've found a Chapter 32 ladder note; if it shows the curve you built, you've just watched your arrangement survive the entire pipeline.

Part D: Synthesis & Critical Thinking

D1. The two-masters memo. ⭐⭐ · 20 min · [A] A club-genre producer friend asks whether they need separate streaming and club masters. Write the honest memo: what the un-normalized world is and which of their playback contexts live in it, what the second master buys there, what it costs in files/QA/version discipline (Chapter 19 has scars to cite), and the question that decides it. End with your recommendation for their situation — pick one: weekend DJ sets at real venues, or streaming-only bedroom releases — and justify it.

D2. Should platforms turn quiet tracks up? ⭐⭐⭐ · 30 min The policy essay: turn-down is universal and safe; turn-up is inconsistent — some platforms decline, some boost with protective limiting. Argue both sides properly: the listener-experience case for turning up, the artistic-integrity and technical case against (whose limiter touches the master? who consented?), and where you'd set the policy if you ran a platform. Cite the chapter's mechanics; hedge the platform specifics, which will have changed by the time you read this.

D3. Three clients, three targets. ⭐⭐ · 20 min · [A] Write the loudness advice — target neighborhood, PLR expectation, the reasoning, and the one thing each must NOT do — for: (a) a techno producer whose tracks get played in DJ sets at clubs; (b) a folk singer-songwriter releasing to streaming with an audience that listens at home; (c) a news podcaster with two rotating co-hosts. Three short paragraphs. The test of your answer is that the three targets differ and every difference has a stated reason.

D4. The renaissance, prosecuted and defended. ⭐⭐⭐ · 30 min "Streaming normalization triggered a dynamics renaissance." Prosecute and defend in two paragraphs each: evidence for (the confiscated weapon, celebrated dynamic masters, what engineers commonly report), evidence against (persistent genre loudness cultures, the un-normalized world, habit, density-as-aesthetic). Then the verdict paragraph: what exactly changed, stated as precisely as you can. (The chapter took a position; you're allowed to disagree with it if your evidence is better.)

Part M: Mixed Practice

M1. (Chapter 2 + 32 + 33) ⭐⭐ · 10 min · [A] Connect three chapters in one paragraph: why digital audio "isn't the stairsteps" (Chapter 2), how that fact creates inter-sample overs (Chapter 32), and why this chapter's delivery gate is stated in dBTP rather than dBFS.

M2. (Chapter 4 + 33) ⭐ · 10 min · [A] Equal-loudness curves, twice: state how they powered the loudness war, and then how the same psychoacoustic fact explains why your Chapter 8 calibrated listening level matters when you're judging masters. One mechanism, two consequences.

M3. (Chapter 16 + 23 + 33) ⭐⭐ · 15 min A song's arrangement builds a huge verse-to-chorus lift (Chapter 16). Trace what happens to that lift through: a heavy-handed mix-bus compressor (Chapter 23's over-compression epidemic), a slammed mastering limiter (Chapter 32), and platform normalization (this chapter). At each stage: does the lift survive, shrink, or die — and why? Which stages are reversible?

M4. (Chapter 21 + 33) ⭐ · 10 min · [A] Crest factor (Chapter 21) and PLR (this chapter): define each, state the relationship, and explain why the same idea appears at tracking scale and mastering scale. Then: your mix print held ~-6 dB peaks with a much lower average — roughly what kind of PLR does an unmastered print carry, and where does that dynamic headroom "go" during Chapter 32?

M5. (Chapter 19 + 26 + 33) ⭐⭐ · 15 min Your collaborator sends "the final master" for a joint release: it measures -7.9 integrated, -0.2 dBTP, and the 808 sounds furry on a phone. Write the feedback message using Chapter 19's protocol (specific, timestamped, about-the-goal), Chapter 26's vocabulary for what happened to the 808's harmonics, and this chapter's numbers for why the -7.9 buys nothing where the release will live. Include the concrete request (what to deliver, what gates it must pass) — and keep it kind; you need this collaborator next year.

Selected answers and worked examples: see the Answers to Selected Exercises appendix. If you only have two evenings this week: C1 and C4 tonight (forty minutes, and your master has a passport and a family), then C2 across the rest of the week — the three-masters experiment is the one that converts this chapter from something you read into something you know. Log everything; Chapter 35 is about to ask for the keeper by name.