Chapter 14 Exercises

Sound design is a hands-on skill wearing a theory costume, so the center of gravity here is Part C: the init-patch drills. Do Part A first to arm your vocabulary, run the Listening Lab with your journal open (Chapter 4 habits apply — every exercise generates entries), and don't skip the recreate-a-preset challenge, which is the single fastest synthesis education available at any price. Time estimates are honest averages. Selected exercises (marked ★) have worked answers in the back of the book (Answers to Selected Exercises).

Part A — Conceptual

A1. Walk the path. ★ (10 min) From memory, draw the subtractive signal path — tone generators through output — and the modulation sources floating above it. Label what each module does to the sound in five words or fewer. Then annotate: where does brightness live? Where does loudness-over-time live? Where does "movement" come from? (If you can't do this cold, the rest of the chapter has nothing to stand on — re-walk the diagram and try again tomorrow.)

A2. Which wave for which job. (10 min) For each brief, name the starting waveform and defend it in one sentence of harmonic-content reasoning (Chapter 1 vocabulary): (a) a sub bass that must never fight the vocal; (b) a pad you intend to filter-sweep through six shapes; (c) a hollow, woody lead for a chiptune-flavored bridge; (d) the "air" hiss layered on top of a supersaw; (e) a soft flute-ish melody that should feel slightly retro.

A3. Envelopes as biography. ★ (10 min) Write the ADSR "story" — approximate values plus one sentence of narrative — for: a plucked harp note; a church organ; a bowed cello swell; an 808 (careful: which parameter does its pitch story belong to?); and the static-bloom pad. Then answer: which single ADSR parameter most separates a pluck from a pad?

A4. Cutoff vs. resonance, to a friend. (10 min) Explain to a bandmate who's never opened a synth what the two big filter knobs do, using no math — only physical metaphors and at least one named record-sound (acid squelch, wobble, "opening up"). Include the tradeoff each knob charges: what does too much resonance cost, and what does an always-open cutoff cost in a mix with a vocal (Chapter 4's masking, in your own words)?

A5. Sort the engines. ★ (10 min) Subtractive, FM, or wavetable — which engine is the most natural first reach for each sound, and why in one sentence: (a) a glassy electric piano that brightens with touch; (b) a warm analog-style pad; (c) a bass that morphs from hum to snarl across one held note; (d) a church bell; (e) a classic trance lead; (f) a "talking" modern bass-music growl?

A6. Read the matrix. (15 min) Translate each mod-matrix line into a plain-English prediction of what you'd hear, then name one musical use: (a) LFO (square, 1/8 sync) → amp, 60%; (b) velocity → filter-env amount, 50%; (c) LFO (triangle, 0.08 Hz, free) → cutoff, ±0.3 oct; (d) mod wheel → LFO depth; LFO (5.5 Hz) → pitch, ±12 cents; (e) key tracking → cutoff, 50%. Bonus: which two of these five are doing the most work in the static-bloom patch?

A7. The preset position paper. (15 min) In three short paragraphs, state your own policy on presets, engaging honestly with both sides the chapter presents: when presets are the professional choice (speed, supporting roles, studies), when init is non-negotiable (signature sounds, fixability, ownership), and where you personally draw the line for your next track. You'll revise this opinion after reading Case Study 1; write the before version now.

A8. The tradeoff ledger. (10 min) For each move, name what it buys AND what it costs (one line each): adding a third detuned oscillator; pushing unison to seven voices; raising resonance from 30% to 70%; syncing a pad's slow LFO to tempo instead of free-running; adding a sub layer to a pad in a track that already has a sub bass.

Part B — 🎧 Listening Lab

Reference levels and fresh ears, per Chapter 8. Log everything in the listening journal. Where a specific track is suggested, any substitute in your genre with the same feature is equally valid — the feature is the assignment, not the song.

B1. Waveform safari. ★ (30 min) Hunt your library (plus the suggestions below) for one clear example of each raw-waveform family and log: song, timestamp, and the harmonic evidence for your verdict. (a) Sine-family sub: Billie Eilish's "bad guy" — pure weight, no buzz. (b) Saw-family pad/lead: The Weeknd's "Blinding Lights" — the bright, buzzy 80s-style synths; hear how much harmonic food the filter has. (c) Square/pulse-family: any chiptune or 8-bit-era game theme — the hollow "video game" midrange (the NES bass was literally a triangle wave; see if you can tell the triangle bass from the pulse leads). (d) Noise: any trap hat pattern (Ch. 13) or the hiss-swell into any EDM drop. Deliverable: four journal lines with evidence, not vibes.

B2. Envelope recognition drill. ★ (25 min) Pick five synth sounds across your library — aim for variety: a pluck, a pad, a bass, a lead, a stab — and for each, write its approximate ADSR story from listening alone: attack (instant or swelling? estimate ms/s), sustain (does holding sustain, or does it die away?), release (does it linger after the note ends?). Then the harder ear-test: for any two of them, decide whether the brightness follows a different story than the loudness — evidence of a separate filter envelope. Describe what you hear that tips you off.

B3. Filter-movement hunting. (25 min) Find three moments in commercial tracks where a filter audibly moves, and classify each: slow open across a section (riser-style build), rhythmic wobble (synced LFO — dubstep and its descendants are the obvious hunting ground; Skrillex-era drops are wall-to-wall LFO-on-cutoff), or performed sweep (a hand or envelope, one-shot). Log: song, timestamp, your classification, and — the producer question — what the move does for the arrangement at that moment (builds tension? signals a section? adds groove?).

B4. FM vs. subtractive blind ear. ★ (20 min) Queue: any mid-80s pop ballad's electric piano (the DX7-era glassy tines — Case Study 1's protagonist; mid-1980s #1 ballads are wall-to-wall with the sound), versus any warm analog-style pad (synthwave and 80s-revival pop are full of them). Log the timbral tells you can actually hear: FM-family sounds tend toward glassy/bell-like attacks, metallic shimmer, brightness that moves with playing dynamics; subtractive-family sounds tend toward buzzy warmth, filter-shaped smoothness, ensemble-style width. Then find one modern track using each family and defend your verdicts in a sentence apiece.

B5. The detune-width listen. (15 min) Find one wide, lush synth part (big pad or supersaw lead) and one focused, narrow synth part (a mono bass or lead) in commercial tracks. Listen on headphones for the shimmer of beating in the wide one — the slow interference churn detune creates — and its absence in the focused one. Then the tradeoff question, answered from listening: what does the wide sound give up (pitch focus? punch? mono survival — preview your phone-speaker check) in exchange for size?

B6. Riser anatomy, three drops. (20 min) Pick three section transitions in your genre that hit hard. For each, list every transition device you can isolate: riser (pitch? noise? filter opening?), reversed cymbal, drum fill, the pre-drop gap/mute, an impact on the downbeat, a vocal pickup. Note the lengths (how many bars does the riser run?) and whether the bar before the downbeat gets emptier or busier. Deliverable: three short inventories plus one observation about how much tension came from removal rather than addition.

B7. (Optional) The Deep Note dissection. (10 min) Find the THX Deep Note online (it's everywhere). Listen three times with this chapter's vocabulary and describe it as a patch: what are the voices doing (pitch modulation from chaos to targets), what's the "envelope" of the whole event, and why does it function as both a riser and a resolution? One paragraph, journal.

Part C — 🎛️ DAW Lab

All drills use ANY stock synth in your DAW — the point is that your synth is enough (Appendix E translates control names across DAWs). Every drill starts from the init patch and ends with: patch saved under a real name, one-line recipe in your session notes. That's the build-log habit; it's not optional this week.

C1. Init drill: the pluck. ★ (15 min) From init: one saw; amp envelope A 0 ms / D ~250 ms / S 0% / R ~250 ms; LPF cutoff around 1–2 kHz, resonance to taste; filter envelope snappier than the amp (fast attack, ~150 ms decay, low sustain, amount positive) for the bwow of a bright birth and dark body. Add velocity → filter-env amount ~40% and play a 1-bar rhythm at varied velocities (Ch. 9/13 hands). Tweak by ear until it sits in a groove. Save as pluck_yourname_v1.

C2. Init drill: the pad. (20 min) From init: two saws detuned ±10 cents; amp envelope A ~0.8 s / S 100% / R ~2 s; LPF mostly closed (~400–600 Hz), resonance ~25–35%; filter envelope slower than the amp; one slow free-running LFO → cutoff at gentle depth. You are allowed to arrive at static bloom's neighborhood — but the assignment is YOUR pad: change at least three parameters away from the recipe card for stated reasons (your key, your tempo, your taste). At your song's tempo, time the bloom to a musical length (half a bar? a bar?) — do the math like the chapter did for 96 BPM. Save with a name that describes the sound, not the settings.

C3. Init drill: the bass. ★ (20 min) Two basses from init, both saved: (a) Saw bass: one saw (add a square an octave down if it needs chest), LPF ~300–800 Hz, amp A 0 / D ~180 ms / S ~50% / R short; snappy filter envelope for the funk bwow; play it against your Chapter 13 drums and tune the envelope until kick and bass take turns instead of colliding. (b) Sine sub: one sine, amp envelope with a touch of release, key tracking on, a fast pitch envelope on the attack if your synth allows — and recognize what you've built: the 808's anatomy from Chapter 13, now from first principles. Check it on headphones AND your smallest speaker.

C4. Init drill: the lead. (15 min) From init: one or two saws (small detune, ±5 cents — leads want more pitch focus than pads, name that tradeoff in your notes); amp A 0–15 ms / S ~80% / R short; cutoff bright but not fully open; resonance for presence. The actual lesson: route mod wheel → LFO depth, LFO → pitch ±10–15 cents at ~5.5 Hz, and perform vibrato — none on the attack, blooming into held notes, recorded as CC (Ch. 9). Play an 8-bar melody and ride the wheel like a singer breathes. Save it.

C5. The recreate-a-preset challenge. ★ (30–45 min) The chapter's keystone drill. Pick one factory preset you genuinely like (pad or pluck for your first attempt — leads and basses are harder). Step 1: study it by ear for five minutes — write its envelope story, its waveform family, its movement (LFO? filter env? both?). Step 2: open its panel/matrix and check your guesses — score yourself honestly. Step 3: re-init the synth and rebuild the sound from scratch, by ear, peeking at the original's panel only when stuck (each peek logged). Step 4: A/B your rebuild against the original and write the three biggest gaps in band vocabulary (Ch. 4: "mine is duller above 5 k; theirs moves slower; mine's wider but blurrier"). You will not match it perfectly. The list of misses is the deliverable — it's a personalized map of what to learn next. Re-run this drill monthly; watch the list shrink.

C6. Build the riser. ★ (25 min) From init, per the chapter's recipe: noise oscillator (plus one saw for a pitched variant); LPF starting mostly closed; create an 8-bar rise at your tempo using at least two of: filter envelope/one-shot LFO opening cutoff, slow pitch climb (≤1 octave), recorded mod-wheel ride → cutoff+pitch (Ch. 9 CC move). Layer a reversed crash one-shot (flip a Ch. 13 sample) underneath. Print 8-bar and 4-bar versions to audio, named with tempo (riser_96bpm_8bar). Then the taste test: place it before your biggest section, then MUTE it and audition the empty-bar version. Journal one sentence: which served the song?

C7. Build the impact. (20 min) Three layers, one downbeat: (a) sine thump with a fast falling pitch envelope, tuned to your song's key (your Ch. 13 808 knowledge); (b) noise splash through a band-pass or open LPF, medium decay, zero sustain; (c) a long-release dark element (detuned saw stab or crash one-shot). Balance the three so the thump leads, bounce to one audio file, and place it under your first chorus downbeat. If your synth has a built-in reverb knob, a small dose may lengthen the tail — note in your journal that real space craft arrives in Chapter 24.

C8. The resample chain. (25 min) Take any patch from C1–C4 and run the lineage: print 8 bars to audio → mangle (reverse it, pitch it ±12 or more semitones, chop and rearrange one bar, stretch something past respectability) → print again → keep the best 8 bars as a new named asset. Version every print (Ch. 2 hygiene). Deliverable: the final audio plus a 3-line ancestry note ("saw pad → reversed → +7 semitones → re-filtered"). If nothing in the chain surprised you, you mangled too gently — go again.

C9. (Optional) The accident farm, installed. (10 min setup, ongoing) Create a _sounds/accidents folder in your project template (Ch. 6) and a recurring 10-minute calendar block after any synth session: wrong-routing exploration, save-everything reflex, no judgment. Add a monthly 15-minute "audit with fresh ears" block: promote keepers into a named library, delete the rest. The deliverable is the system existing — graded in a month by whether it contains anything.

Part D — Synthesis & Critical Thinking

D1. Design from a brief. ★ (30 min) A director hands you this: "Thirty seconds of sound for a time-lapse of dawn over an empty parking lot. Hopeful, but cold around the edges. No drums." Design it with this chapter's tools — engines, layers, envelopes, modulation, maybe a resample — and document like a professional: the brief restated in sound terms (what does "hopeful but cold" mean in band vocabulary, envelope speeds, detune width?), your patch decisions with reasons, and what you'd resample or layer. Build it if you have an hour; the documented design alone earns the grade.

D2. The preset-culture essay. (25 min) After reading Case Study 1: in ~400 words, take a position — "The DX7's E PIANO 1 story is mostly a cautionary tale" or "…is mostly a success story" — and defend it using at least three specifics from the case study plus one modern parallel you can observe in your own scene (stock trap kits, Serum preset packs, type-beat palettes). The strongest essays concede the best point on the other side.

D3. Your title patch, audited. (20 min) Take the signature patch you built in this week's checkpoint and write its tradeoff ledger, one line per decision: what each choice bought, what it cost, and — the Chapter 4 question — which frequency zones it occupies that something else in your track also wants. End with one sentence predicting the mix problem this patch will cause in Chapter 22, because every patch causes one, and producers who can predict theirs are ahead of the queue.

D4. Teach it back. (15 min) Record a three-minute voice memo explaining to a friend who's never opened a synth: what a filter does, what an envelope does, and why "start from init" is advice about knowledge rather than purity. No jargon without an immediate plain-words translation. If you can't fill three minutes without notes, the signal path hasn't compiled yet — re-walk the diagram and re-record.

Part M — Mixed Practice

Interleaving earlier chapters — spaced retrieval is how this sticks.

M1. (Ch 1 + 14) ★ A sawtooth at A2 (110 Hz) contains harmonics at 220, 330, 440 Hz and up. Using Chapter 1's harmonic-recipe model, explain what a low-pass filter at 400 Hz leaves audible — and why the same cutoff on a sine at 110 Hz changes almost nothing. Then connect: why does this make the saw "the wave you plan to filter"?

M2. (Ch 2 + 14) Your wavetable bass sounds gritty in a way you didn't program — thin, inharmonic whistles that don't track the notes musically. Using Chapter 2's aliasing model, explain what's likely happening when heavy wavetable warping (or a modeled filter's saturation) generates harmonics near and above Nyquist, and name the two-part fix (one synth setting, one honest listen to confirm).

M3. (Ch 4 + 14) Your new pad sounds glorious solo'd and your rough mix instantly feels crowded, with the vocal hardest hit. Using Chapter 4's masking and band vocabulary, name the two zones where pads most commonly collide with vocals, and propose two patch-level fixes from this chapter (not mix moves — those wait for Chapter 22) that surrender the contested space.

M4. (Ch 9 + 14) ★ Chapter 9 called velocity "THE expression channel" and the mod wheel a phrasing tool. Name the two routings from this chapter that cash those claims into timbre (not just loudness), and describe what a listener hears differently when a part is performed through them versus drawn in flat.

M5. (Ch 13 + 14) Describe the 808 entirely in this chapter's vocabulary — oscillator type, amp envelope shape, the modulator responsible for the attack "knock," and the routing that keeps it playable across keys. Then explain why "tune your 808 to the song key" (Ch. 13) matters more for a sine-based patch than for a noise-based one.

M6. (Ch 10 + 12 + 14, optional) You design a gorgeous sub-heavy pad on headphones, then audition it on monitors in your Chapter 10–treated room and the low end still feels uneven as you move around. Explain, in two sentences each: what the room is doing (Ch. 10), why the headphone verdict differed (Ch. 8/10), and which capture-side instinct from Chapter 12 ("fix at the source") translates into patch design here.