Code

Description

SW

Softwood sample

HW

Hardwood sample

Level xxx (dB)

Output signal amplitude in dB when measured at xxx (cm) distance from input signal

Lx

Sample log number x (Four Logs were labelled as L1 to L4)

C

Sample wood with cracks (extra holes were made to simulate cracks in logs L3 & L4)

N

Sample wood in normal condition (i.e. No cracks for logs L1 & L2)

H

High MC level

M

Medium MC level

L

Low MC level

Xx kHz

Input signal frequency in xx kHz (1, 5, 10, 15, 20, 25, 50 and 100 kHz)