Serge Auckland wrote:
I don't know about the Telarc 1812 specifically,
but I understand they used real cannon which would generate huge amounts
of vlf. I wonder what mics they captured it with.

The sleeve notes say 2-3kHz for the crack of the initial charge with a
follow up boom going down to 6Hz.

As for mics, it just says Schoeps Colette - though I suspect they are
referring to the orchestral recording there, not the cannon which were
done in separate takes.



Also, the direct to
disk analogue recordings would have to roll off the lf to save the cut
and for the later CD release which was done, if I recall, on an analogue
machine, that would have not gone down below 20Hz, and even 30Hz flat
was a struggle for the Studers and Ampexs of the era.


Are you still referring to the Telarc 1812? If so, it's actually a
digital master.

Roy.