tune: calmer robot hover (no jelly) + more grounded voice

Cut the float bob amplitude, removed the hop, and softened the squash so the
robot settles into a gentle hover instead of bouncing. Eased the voice pitch
down (neural 1.16->1.07, browser pitch 1.5->1.18) for a more composed, serious
tone while staying youthful.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: i-anasop

components/reflection/ImmersiveRoom3D.tsx

@@ -198,14 +198,13 @@ function CompanionModel({ state }: { state: OrbState }) {
 
   useFrame((st, dt) => {
     const t = st.clock.elapsedTime;
-    // floaty idle bob with a springy squash-&-stretch + an occasional happy hop
-    const bob = Math.sin(t * 1.6);
-    const hop = Math.pow(Math.max(0, Math.sin(t * 0.55)), 8); // a little jump now and then
+    // a gentle, settled hover — subtle bob with the faintest squash, no jelly
+    const bob = Math.sin(t * 1.25);
     if (root.current) {
-      const y = 1.05 + bob * 0.045 + hop * 0.09;
+      const y = 1.05 + bob * 0.018;
       root.current.position.y = y;
-      const sx = 1 + bob * 0.025 - hop * 0.05;
-      const sy = 1 - bob * 0.025 + hop * 0.07;
+      const sx = 1 + bob * 0.008;
+      const sy = 1 - bob * 0.008;
       root.current.scale.set(0.64 * sx, 0.64 * sy, 0.64 * sx);
       root.current.rotation.z = damp(root.current.rotation.z, Math.sin(t * 0.7) * 0.055 + (state === 'speaking' ? Math.sin(t * 2.0) * 0.02 : 0), 4, dt);
       root.current.position.z = damp(root.current.position.z, state === 'listening' ? -1.16 : -1.26, 5, dt);

lib/voice.ts

@@ -124,9 +124,9 @@ export function useVoice(opts: {
       const voices = voicesRef.current.length ? voicesRef.current : synth.getVoices();
       const voice = chosenVoiceRef.current ?? pickWarmVoice(voices);
       if (voice) u.voice = voice;
-      // child-like: a higher pitch + slightly quicker pace = a cute, young voice
-      u.rate = 1.04;
-      u.pitch = 1.5;
+      // youthful but composed — a gentle lift, not a cartoon
+      u.rate = 1.0;
+      u.pitch = 1.18;
       // Chrome quietly pauses long utterances after ~15s — keep nudging it.
       const keepAlive = setInterval(() => { try { if (synth.speaking) synth.resume(); else clearInterval(keepAlive); } catch { clearInterval(keepAlive); } }, 9000);
       const done = () => { clearInterval(keepAlive); onEnd?.(); };
@@ -180,7 +180,7 @@ export function useVoice(opts: {
         type PitchAudio = HTMLAudioElement & { preservesPitch?: boolean; mozPreservesPitch?: boolean; webkitPreservesPitch?: boolean };
         const pa = audio as PitchAudio;
         pa.preservesPitch = false; pa.mozPreservesPitch = false; pa.webkitPreservesPitch = false;
-        audio.playbackRate = 1.16; // higher + a touch quicker → cute kid voice
+        audio.playbackRate = 1.07; // a slight lift — youthful but still grounded
         audioRef.current = audio;
         audio.onended = () => { stopAudio(); finish(); };
         audio.onerror = () => { stopAudio(); if (!settled) browserSpeak(text, finish); };