Thanks, Fons. I was hoping it was something as simple as this. I failed to find anything on the internet that expresses the relationships so simply. Did I actually miss a page?

David

At 12:55 14-04-18, Fons Adriaensen wrote:
>On Sat, Apr 14, 2018 at 09:55:25AM +0100, Jack Reynolds wrote:
>
>> FuMa is WXYZ and ambiX is WYZX with SN3D normalisation.
>> I forget the gains off the top of my head, but will have
>> a look and get back if no one else has chipped in.
>
>
>Convert FuMa to Ambix
>---------------------
>
>ACN-0  =  1.4142 * W    (+3.01 dB)
>ACN-1  =  Y
>ACN-2  =  Z
>ACN-3  =  X
>------
>ACN-4  =  0.8660 * V   (-1.25 dB)
>ACN-5  =  0.8660 * T
>ACN-6  =  R
>ACN-7  =  0.8660 * S
>ACN-8  =  0.8660 * U
>------
>ACN-9  =  0.7906 * Q   (-2.04 dB)
>ACN-10 =  0.7454 * O   (-2.55 dB)
>ACN-11 =  0.8433 * M   (-1.48 dB)
>ACN-12 =  K
>ACN-13 =  0.8433 * L
>ACN-14 =  0.7454 * N
>ACN-15 =  0.7906 * P
>
>Ambix files should use CAF (Apple's Core Audio Format),
>but in practice WAVEX is used as well.
>
>
>Convert Ambix to Fuma
>---------------------
>
>W = 0.7071 * ACN-0     (-3.01 dB)
>X = ACN-3
>Y = ACN-1
>Z = ACN-2
>-----
>R = ACN-6
>S = 1.1547 * ACN-7     (+1.25 dB)
>T = 1.1547 * ACN-5
>U = 1.1547 * ACN-8
>V = 1.1547 * ACN-4
>-----
>K = ACN-12
>L = 1.1859 * ACN-13    (+1.48 dB)
>M = 1.1859 * ACN-11
>N = 1.3416 * ACN-14    (+2.55 dB)
>O = 1.3416 * ACN-10
>P = 1.2649 * ACN-15    (+2.04 dB)
>Q = 1.2649 * ACN-9
>
>
>Ciao,
>
>--
>FA
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