Void: the double hit a hollow wooden note
Meant to sound like (a hypothesis): One round, hollow, almost wooden note that falls a little and settles. Higher than the horn. One onset per note: nothing rides the release.
Meta heard a weird double hit in v3. In every v3 Void note the spectrogram shows a second event 95 ms after the note starts (190 ms in the mention): a short broadband knock, the "soft tick" v3 kept on the tail of every note, level with the tone it sits on, so the loudness envelope barely shows it but the spectrum does. Removing only the tick removes every extra onset except one: in invite, note 2 (gap 100 ms) was still ringing at -16 dB when note 3 struck, which makes a second rise (+19 dB, 9 ms later +8.5 dB) in the envelope as the two tones beat; note 3 rendered alone has exactly one onset. v4 removes the tick and ends a note that something follows by the next onset, as Libby's do.
| Clip | v3 onsets (ms) and what made each | v4 onsets (ms) |
|---|---|---|
| mention notes at 0 ms | 8 ms: note 1 attack 193 ms: tick (note's own knock, 190 ms in; the mention's note is stretched 2x) | 8 |
| dm notes at 0, 240 ms | 8 ms: note 1 attack 98 ms: tick of note 1 240 ms: note 2 attack 339 ms: tick of note 2 | 8, 240 |
| message notes at 0, 230 ms | 8 ms: note 1 attack 98 ms: tick of note 1 230 ms: note 2 attack 329 ms: tick of note 2 | 8, 230 |
| invite notes at 0, 200, 300 ms | 8 ms: note 1 attack 98 ms: tick of note 1 208 ms: note 2 attack 309 ms: note 3's attack (with note 2's tick, ~295 ms, folded into it) 398 ms: tick of note 3 | 8, 208, 308 |
An onset is a rise of the 1 ms envelope of at least 6 dB over the quietest point of the previous 15 ms (full band), or of 10 dB in the band above 1.5 kHz, where a click or knock shows even when it is level with the tone; events within 20 ms are one. v4 has exactly one per note.
| Notification | v4 (new, unheard) | v3 (as listened to) |
|---|---|---|
| mention one note | 460 ms | |
| dm two slower notes, rising | 469 ms | |
| message two quick notes, rising | 395 ms | |
| invite a long pause, then a short one: three notes | 530 ms |
Spectrograms and envelopes (click for full size)
Nibu: proposal 3 for every event chosen by Nibu after Meta liked it; same motif rhythms as the other voices
- Proposal 3: sample-rate-reduced sine. A soft sine that has been through an old converter: held at 8 kHz and 5 bits, then filtered smooth so it is grainy without being harsh. Soft attack, gentle decay, no glide. Synthetic in a different way from the other two.
- Proposal 1: static-filter square. Two held, soft, hollow square-wave tones a fifth apart (in a mention, just the first), filtered dark and not moving. Slow soft attack, long settle, no glide. Plainly synthetic.
- Proposal 2: low-index FM bell. A small FM bell in a low register: a harmonic 1:2 pair with a modest, fading index, so it is bright for a moment and then a plain tone. Pitched a tritone from Libby's bell and an octave and a half under it. No glide.
Proposal 3 is Nibu's voice in the manifest for mention, message, dm and invite, at the shared rhythms (message two quick notes, dm two slow notes, invite three). Proposals 1 and 2 are kept here as alternates and are not in the manifest.
| Notification | Proposal 3 (Nibu's voice, all four events) | Proposal 1 (alternate, not in the manifest) | Proposal 2 (alternate, not in the manifest) | v3 manifest voice (proposal 1) |
|---|---|---|---|---|
| mention one note | 520 ms | 519 ms | 519 ms | |
| dm two slower notes, rising | 590 ms | 590 ms | 590 ms | |
| message two quick notes, rising | 384 ms | 385 ms | 384 ms | |
| invite a long pause, then a short one: three notes | 589 ms | 590 ms | 589 ms |
Does proposal 3 survive more than one note?
Measured on the raw renders, not by ear. Notes do not overlap: each note is silent (under -120 dB re its peak, checked as an exact test) by the next onset, and the clip is the sum of its per-note renders. No smear: the multi-note spectrograms show three clean steps and the 8 kHz sample-rate images (7.3 and 8.7 kHz for the invite's third note) as thin lines. Note 1 of every multi-note clip has the same spectrum as the single note (same pitch, first 200 ms, same peak at 349 Hz and the same energy above 4 kHz, -60.1 dB re total). The invite's high floor is more tones and more attacks, not aliasing: the strongest image line is -58.5 dB re the clip's peak (mention -66.4, message -64.2, dm -63.5).
| Clip | Per note | Strongest line 6.5-9.5 kHz |
|---|---|---|
| message | note 1: -60.1 dB above 4 kHz, -240.0 dB at its end; note 2: -60.2 dB above 4 kHz, -59.9 dB at its end | -64.2 dB |
| dm | note 1: -60.1 dB above 4 kHz, -64.3 dB at its end; note 2: -59.2 dB above 4 kHz, -62.9 dB at its end | -63.5 dB |
| invite | note 1: -60.1 dB above 4 kHz, -63.4 dB at its end; note 2: -59.5 dB above 4 kHz, -59.8 dB at its end; note 3: -56.5 dB above 4 kHz, -62.1 dB at its end | -58.5 dB |
spectrum, invite against mention · invite spectrogram · message · dm
Unchanged voices
The neutral fallback beside each voice is loudness-matched to it like every other clip (before this, the staged neutral files were 4 to 14 dB louder than the voices).
Aqua a soft water droplet · unchanged since v3
One soft droplet per note: a round, watery 'bloop' whose pitch lifts as it lands. No click.
| Notification | Voice | Neutral fallback |
|---|---|---|
| mention one note | 440 ms | |
| dm two slower notes, rising | 450 ms | |
| message two quick notes, rising | 395 ms | |
| invite a long pause, then a short one: three notes | 510 ms |
Eureka a pure soft sine · unchanged since v3
A single soft, clean, steady tone that eases in slowly, holds, and settles away gently. Nothing else.
| Notification | Voice | Neutral fallback |
|---|---|---|
| mention one note | 400 ms | |
| dm two slower notes, rising | 470 ms | |
| message two quick notes, rising | 395 ms | |
| invite a long pause, then a short one: three notes | 530 ms |
Heimdall a low horn heard through a door · unchanged since v3
One low, warm, muffled horn note, as if heard through a closed door. It swells in slowly, holds a steady pitch, and fades away softly.
| Notification | Voice | Neutral fallback |
|---|---|---|
| mention one note | 599 ms | |
| dm two slower notes, rising | 540 ms | |
| message two quick notes, rising | 395 ms | |
| invite a long pause, then a short one: three notes | 600 ms |
Kiko struck glass · unchanged since v3
Hypothesis, unheard: a small glass tapped once. A clean, instant start, then three inharmonic partials that ring and fall away, the upper ones first. No friction noise, no swell, no pitch movement. A note something follows settles before the next lands; the last note rings.
| Notification | Voice | Neutral fallback |
|---|---|---|
| mention one note | 480 ms | |
| dm two slower notes, rising | 590 ms | |
| message two quick notes, rising | 385 ms | |
| invite a long pause, then a short one: three notes | 590 ms |
Libby a small bell · unchanged since v3
One small bell note with a felt-soft start, no strike. A note that something follows is shortened to settle before the next one lands; the last note rings.
| Notification | Voice | Neutral fallback |
|---|---|---|
| mention one note | 520 ms | |
| dm two slower notes, rising | 590 ms | |
| message two quick notes, rising | 385 ms | |
| invite a long pause, then a short one: three notes | 590 ms |
Weksa a plucked brass compass · unchanged since v3
A small plucked brass note, then a small bright rise: the sound of finding the thing. In a mention, just the one pluck.
| Notification | Voice | Neutral fallback |
|---|---|---|
| mention one note | 480 ms | |
| dm two slower notes, rising | 480 ms | |
| message two quick notes, rising | 394 ms | |
| invite a long pause, then a short one: three notes | 540 ms |