# Formal Style — VoiceNet dimension guide

*Category:* Speaking Style · *code:* `vn_S_FORM` · *slot:* 84

This dimension measures how formal and composed the delivery sounds. Merge the `__high` / `__low` LoRA from `laion/moss-voicenet-dimension-loras` at 25/50/75/100/125%. Costs are shifts vs. the 24-sample neutral baseline.

**TL;DR.** **Formal Style** controls how formal and composed the delivery sounds. The **__high** LoRA shifts it +0.44 at 125% (worst cost: burst-blend -0.23); the **__low** LoRA shifts it -0.10 at 100% (worst cost: burst-blend -0.35). The **__high** direction is the stronger, more reliable knob here.

## ▲ HIGH — Formal Style __high

| dose | target | Δtarget | Δgenu | Δblend | Δqual |
|---|---|---|---|---|---|
| baseline (0%) | 0.261 | — | — | — | — |
| 25% | 0.370 | +0.11 | -0.05 | -0.05 | +0.10 |
| 50% | 0.486 | +0.22 | -0.08 | -0.08 | +0.11 |
| 75% | 0.522 | +0.26 | -0.08 | -0.09 | +0.14 |
| 100% | 0.654 | +0.39 | -0.12 | -0.13 | +0.20 |
| 125% ★ | 0.696 | +0.44 | -0.11 | -0.23 | +0.19 |

- **EmoNet emotion** — ↑ Emotional Numbness (+0.50), Sexual Lust (+0.33), Concentration (+0.32); ↓ Relief (-0.69), Helplessness (-0.41), Fatigue/Exhaustion (-0.40)
- **VoiceNet dimension** — ↑ Structure (+0.90), Smoothness (+0.87), Narrator Style (+0.86); ↓ Casual Style (-0.91), Genuineness (-0.78), Disfluency (-0.74)

Merging **Formal Style __high** pushes the dimension: at the recommended **125%** dose the measured Formal Style score moves from a 0.26 baseline to 0.70 (a +0.44 shift). The dose-response is clean and monotonic — each step pushes the dimension further. That reach is a real cost — the biggest hit is to **burst-blend** (-0.23); across the board genuineness -0.11, burst-blend -0.23, speech quality +0.19. Emotionally it reads as Emotional Numbness (r 0.50), Sexual Lust (0.33) and Concentration (0.32), and it moves away from Relief, Helplessness and Fatigue/Exhaustion. On other voice dimensions it co-moves most with Structure (0.90), Smoothness (0.87) and Narrator Style (0.86), while pulling down Casual Style, Genuineness and Disfluency. Practical call: merge __high at **100–125%**; expect Emotional Numbness and Structure to rise and burst-blend to fall. If you don’t want Emotional Numbness bleeding in, offset it with a prompt cue toward Relief to keep the formal style shift without the side-effect.

## ▼ LOW — Formal Style __low

| dose | target | Δtarget | Δgenu | Δblend | Δqual |
|---|---|---|---|---|---|
| baseline (0%) | 0.261 | — | — | — | — |
| 25% | 0.280 | +0.02 | -0.03 | -0.09 | -0.02 |
| 50% | 0.380 | +0.12 | -0.05 | -0.07 | +0.03 |
| 75% | 0.189 | -0.07 | +0.03 | -0.14 | -0.19 |
| 100% ★ | 0.165 | -0.10 | -0.06 | -0.35 | -0.18 |
| 125% | 0.205 | -0.06 | -0.09 | -0.31 | -0.14 |

- **EmoNet emotion** — ↑ Longing (+0.45), Interest (+0.39), Infatuation (+0.39); ↓ Pain (-0.47), Impatience and Irritability (-0.40), Astonishment/Surprise (-0.39)
- **VoiceNet dimension** — ↑ Narrator Style (+0.76), Smoothness (+0.74), Fullness (+0.71); ↓ Casual Style (-0.77), Respiration (-0.65), Volatility (-0.60)

Merging **Formal Style __low** lowers the dimension: at the recommended **100%** dose the measured Formal Style score moves from a 0.26 baseline to 0.17 (a -0.10 shift). The dose-response is mostly ordered but noisy between doses. That reach is a steep cost — the biggest hit is to **burst-blend** (-0.35); across the board genuineness -0.06, burst-blend -0.35, speech quality -0.18. Emotionally it reads as Longing (r 0.45), Interest (0.39) and Infatuation (0.39), and it moves away from Pain, Impatience and Irritability and Astonishment/Surprise. On other voice dimensions it co-moves most with Narrator Style (0.76), Smoothness (0.74) and Fullness (0.71), while pulling down Casual Style, Respiration and Volatility. Practical call: merge __low at **75–100%**; expect Longing and Narrator Style to rise and burst-blend to fall. If you don’t want Longing bleeding in, offset it with a prompt cue toward Pain to keep the formal style shift without the side-effect.

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