Mark Sims wrote:
A little testing shows:
2 AMU = 33 dBc
4 AMU = 36 dBc
5 AMU = 39 dBc
6 AMU = 41 dBc
9 AMU = 45 dBc
12 AMU = 47 dBc
15 AMU = 49 dBc
Numbers are approximate due to shifting values and delays when switching units.
A quick play with Gnumerics gave me the formula dBc = 20*log10(AMU)+25,5
to have the best match, and RMS error of 2,23 where as the dBc = AMU +
33,9 has the RMS error of 4,34.
Both offset coefficients is for lowest RMS error.
A few more pairs would help to improve the estimate.
Cheers,
Magnus
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