Contributions appreciated

"One of the interesting points to call attention to is the adoption of a circular form for the hall which seems contrary to the development of good acoustics. The Assembly Hall is made in a hyperbolic shell with an average thickness of 15 cm, constant throughout its surface, resulting in a very low cost and a minimum of weight (here the principle of industrial cooling towers has been applied to the architectural intentions). This shell does not terminate in a horizontal but in an oblique section which shall receive a metallic framework (aluminum). This framework will become a veritable physical laboratory destined to ensure the interplay of natural lighting, artificial lighting, ventilation and acoustic-electronic mechanisms."

— Hans Girsberger, ed. Le Corbusier 1910-60. p202.