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Public Acoustic Sample Library

A growing library of measured tonewood samples. Compare acoustic radiation, speed of sound, elastic modulus, and find wood matching precise lutherie specs.

📁 Total Materials
2
Publicly shared samples
🔊 Avg Sound Speed
3238 m/s
Acoustic sound wave speed
⚖️ Avg Density
350 kg/m³
Raw weight-to-volume ratio
🏆 Premium Tier
0%
Samples with speed ≥ 5000m/s
📜 Wood Acoustic Reference Standards

Alpine Spruce (Swiss Moon)

Alpine Spruce (Swiss Moon) — Picea abies (Moon-harvested)

topAAA
#TW-20260506-7305
✅Good
c (Speed)
4861 m/s
ρ (Density)
433 kg/m³
E (Elasticity)
10.2 GPa
c-Wave Wave-speed VS Typical
4861 m/s
Typical: 5200-6500⚠️ Below Typical
Density VS Typical
433 kg/m³
Typical: 340-440
Radiation R (c/ρ)P70
11.23 m⁴/kg·s
Impedance Z (ρ·c)P20
2.10 MRayl
Sound Speed Percentile
P10
Density Percentile
P20
🔬 ToneWood Measurement📅 May 6, 2026

Alpine Spruce (Swiss Moon)

Alpine Spruce (Swiss Moon) — Picea abies (Moon-harvested)

topAAA
#TW-20260503-3453
📉Below Average
c (Speed)
1615 m/s
ρ (Density)
267 kg/m³
E (Elasticity)
0.7 GPa
c-Wave Wave-speed VS Typical
1615 m/s
Typical: 5200-6500⚠️ Below Typical
Density VS Typical
267 kg/m³
Typical: 340-440⚠️ Below Typical
Radiation R (c/ρ)P0
6.06 m⁴/kg·s
Impedance Z (ρ·c)P0
0.43 MRayl
Sound Speed Percentile
P0
Density Percentile
P0
🔬 ToneWood Measurement📅 May 2, 2026