It's possible that the writer is using the word in the sense of 'a full assembly', rather than in the scientific (or air-handling) sense.
Regards, John On 17 Apr 2012, at 21:26, Gregorio Garcia Karman wrote: > Thanks for the inquisitive responses. The text was written in 1966 and > belongs to a composer from the circles of the BBC. It reads: > > "[one person] controls the volume of the total output of the platform > speakers, as well as the stereophonic motion of the sound to and from between > the loudspeakers, and the spread or growth of the sound from audio-point to > audio- plenum" > _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
