# Metallic Character — VoiceNet dimension guide

*Category:* Spectral & Timbral · *code:* `vn_METL` · *slot:* 66

This dimension measures the presence of clanging / ringing inharmonic frequencies. 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.** **Metallic Character** controls the presence of clanging / ringing inharmonic frequencies. The **__high** LoRA shifts it +0.43 at 100% (worst cost: burst-blend -0.44); the **__low** LoRA shifts it -0.04 at 75% (worst cost: genuineness -0.03). The **__high** direction is the stronger, more reliable knob here.

## ▲ HIGH — Metallic Character __high

| dose | target | Δtarget | Δgenu | Δblend | Δqual |
|---|---|---|---|---|---|
| baseline (0%) | 0.054 | — | — | — | — |
| 25% | 0.067 | +0.01 | -0.01 | -0.11 | -0.07 |
| 50% | 0.300 | +0.25 | -0.06 | -0.22 | -0.06 |
| 75% | 0.422 | +0.37 | -0.08 | -0.43 | -0.15 |
| 100% ★ | 0.488 | +0.43 | -0.10 | -0.44 | -0.20 |
| 125% | 0.458 | +0.40 | -0.07 | -0.37 | -0.20 |

- **EmoNet emotion** — ↑ Triumph (+0.77), Pride (+0.64), Malevolence/Malice (+0.61); ↓ Contentment (-0.65), Affection (-0.63), Relief (-0.61)
- **VoiceNet dimension** — ↑ Attack (+0.97), Arousal (+0.97), Stance (+0.97); ↓ Vulnerability (-0.86), Whisper-Talk Style (-0.81), Warmth (-0.80)

Merging **Metallic Character __high** raises the dimension: at the recommended **100%** dose the measured Metallic Character score moves from a 0.05 baseline to 0.49 (a +0.43 shift). The dose-response is clean and monotonic — each step pushes the dimension further. That reach is a steep cost — the biggest hit is to **burst-blend** (-0.44); across the board genuineness -0.10, burst-blend -0.44, speech quality -0.20. Emotionally it reads as Triumph (r 0.77), Pride (0.64) and Malevolence/Malice (0.61), and it moves away from Contentment, Affection and Relief. On other voice dimensions it co-moves most with Attack (0.97), Arousal (0.97) and Stance (0.97), while pulling down Vulnerability, Whisper-Talk Style and Warmth. Practical call: merge __high at **75–100%**; expect Triumph and Attack to rise and burst-blend to fall. If you don’t want Triumph bleeding in, offset it with a prompt cue toward Contentment to keep the metallic character shift without the side-effect.

## ▼ LOW — Metallic Character __low

| dose | target | Δtarget | Δgenu | Δblend | Δqual |
|---|---|---|---|---|---|
| baseline (0%) | 0.054 | — | — | — | — |
| 25% | 0.105 | +0.05 | +0.00 | +0.10 | +0.00 |
| 50% | 0.036 | -0.02 | -0.05 | +0.00 | +0.07 |
| 75% ★ | 0.016 | -0.04 | -0.03 | +0.01 | +0.10 |
| 100% | 0.059 | +0.01 | -0.06 | -0.08 | +0.15 |
| 125% | 0.053 | +0.00 | -0.02 | +0.10 | +0.02 |

- **EmoNet emotion** — ↑ Jealousy & Envy (+0.48), Teasing (+0.36), Pride (+0.35); ↓ Contentment (-0.41), Disgust (-0.30), Contemplation (-0.21)
- **VoiceNet dimension** — ↑ Tension (+0.85), Attack (+0.84), Stance (+0.82); ↓ Register (-0.41), Warmth (-0.37), Teacher/Didactic Style (-0.32)

Merging **Metallic Character __low** damps the dimension: at the recommended **75%** dose the measured Metallic Character score moves from a 0.05 baseline to 0.02 (a -0.04 shift). The dose-response is monotonic but it saturates early, so higher doses add little. That reach is nearly free — the biggest hit is to **genuineness** (-0.03); across the board genuineness -0.03, burst-blend +0.01, speech quality +0.10. Emotionally it reads as Jealousy & Envy (r 0.48), Teasing (0.36) and Pride (0.35), and it moves away from Contentment, Disgust and Contemplation. On other voice dimensions it co-moves most with Tension (0.85), Attack (0.84) and Stance (0.82), while pulling down Register, Warmth and Teacher/Didactic Style. Practical call: merge __low at **50–100%**; expect Jealousy & Envy and Tension to rise and genuineness to fall. If you don’t want Jealousy & Envy bleeding in, offset it with a prompt cue toward Contentment to keep the metallic character shift without the side-effect.

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