diff --git a/docs/re/structures/voice-three-streams-are-concurrent.md b/docs/re/structures/voice-three-streams-are-concurrent.md
index aaaaa6a9..05779ad6 100644
--- a/docs/re/structures/voice-three-streams-are-concurrent.md
+++ b/docs/re/structures/voice-three-streams-are-concurrent.md
@@ -36,7 +36,56 @@ these three contexts appear in the run.
 So the three streams are **simultaneous**, not alternative. A consumer that picks
 one is discarding two thirds of what the game mixes.
 
-## 🟡 The obvious reading is 5.1, and it is NOT established
+## ✅ ANSWERED 2026-08-29 — the dialogue is in the CENTRE channel
+
+Measured by the port, fitting the disc's decoded streams against a clean capture
+of the game's own 6-channel output
+([`audio-capture-alsa-file-tee.md`](../audio-capture-alsa-file-tee.md)). Their
+instrument was controlled first: known-present margin **+0.248**, known-absent
+**+0.005**.
+
+Speech-band correlation margins, by output channel:
+
+| | FL | FR | **FC** | LFE | RL | RR |
+|---|---|---|---|---|---|---|
+| stream 1 (the leading one) | +.013 | +.006 | +.012 | +.009 | +.012 | +.005 |
+| **stream 2** | +.238 | +.171 | **+.305** | +.011 | +.035 | +.006 |
+| stream 3 | +.240 | +.173 | **+.307** | +.009 | +.054 | +.006 |
+
+**`r = 0.989` on FC**, above the known-present control. And the low band is the
+exact mirror — the movie bed at FL .763 / FR .838 / RL .805 / RR .817 on one
+lag, with **FC .317**.
+
+✅ **Dialogue in the centre; bed in the four corners.** So the streams *are* a
+multichannel decomposition, which is what the 🟡 below hypothesised — and it was
+right for a reason the file could never have supplied. **`ChannelMask` reads
+`0x0002` on all three streams**; the header is not merely unhelpful here, it is
+actively misleading, and refusing to call it 5.1 from the header was correct.
+The oracle answered what the header could not.
+
+⚠️ **Three things this does NOT establish**, stated by the measurer:
+
+1. **Streams 2 and 3 are indistinguishable to this instrument** — +.305 vs
+   +.307, exactly as expected from stream 3 being 0.60 × stream 2 with the
+   residual 26.8 dB down. So this does **not** vindicate any rule for picking
+   between them; only that whichever is picked is the dialogue.
+2. 🔴 **The "1 of 3 streams" warning stands.** Nothing here says what streams 1
+   and 3 contribute to the game's output. What changed is its *character*: from
+   "one of three, contents unknown" to "the centre-channel dialogue, plus two
+   streams whose relationship to it is measured and whose role is not".
+3. **Reach: 59.7 s of a 137 s movie, one run, one asset.** Stream 1 being
+   undetectable is *consistent* with it being stream 2's tail and a window that
+   starts before it — a consistent story, not evidence.
+
+❔ **The capture that would strengthen it most is `S00A`, not a longer `ADV`.**
+`S00A`'s second full-length stream is **digital silence** where `ADV`'s is a
+0.60 × copy, so if FC still carries dialogue there, a structurally different
+movie agrees and the finding stops resting on one asset. ⚠️ Reaching it needs a
+**driven, rendered** run — `S00A` starts ~4.5 s after Ⓐ on the save slot
+([`movie-binding.md`](../movie-binding.md)) — so it cannot use `--gpu=null`, and
+its capture will carry the ~10 % additive padding. Not taken.
+
+## 🟡 The obvious reading was 5.1 — recorded here as it stood before the measurement
 
 Three concurrent **stereo** streams is six channels, and N stereo streams is
 exactly how XMA carries multichannel audio on the 360. It would explain a lot at