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Acoustics of auditoriums ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

64,023 braille cells · 68 embossed pages at 40×25 · 195 unrepresentable characters omitted

⠠⠥⠗⠃⠁⠝⠁⠂⠀⠠⠊⠇⠇⠊⠝⠕⠊⠎⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠠⠠⠋⠕⠕⠞⠝⠕⠞⠑⠎⠀
⠼⠁⠀⠦⠠⠞⠓⠑⠕⠗⠽⠀⠕⠋⠀⠠⠎⠕⠥⠝⠙⠂⠴⠀⠠⠧⠕⠇⠲⠀⠠⠠⠊⠊⠂⠀⠏⠲⠀
⠼⠉⠁⠋⠲⠀⠀⠀⠀⠀⠀⠼⠃⠀⠦⠠⠞⠓⠑⠕⠗⠽⠀⠕⠋⠀⠠⠎⠕⠥⠝⠙⠂⠴⠀⠠⠧⠕⠇⠲
⠀⠠⠠⠊⠊⠂⠀⠀⠼⠉⠑⠁⠲⠀⠀⠀⠀⠀⠀⠼⠉⠀⠦⠠⠙⠽⠝⠁⠍⠊⠉⠁⠇⠀
⠠⠞⠓⠑⠕⠗⠽⠀⠕⠋⠀⠠⠎⠕⠥⠝⠙⠂⠴⠀⠏⠲⠀⠼⠁⠊⠋⠲⠀⠀⠀⠀⠀⠀⠼⠙⠀
⠦⠠⠞⠓⠑⠕⠗⠽⠀⠕⠋⠀⠠⠎⠕⠥⠝⠙⠂⠴⠀⠏⠲⠀⠼⠉⠉⠉⠲⠀⠀⠀⠀⠀⠀⠼⠑⠀
⠦⠠⠁⠗⠉⠓⠊⠞⠑⠉⠞⠥⠗⠁⠇⠀⠠⠁⠉⠕⠥⠎⠞⠊⠉⠎⠲⠴⠀⠠⠁⠀⠎⠑⠗⠊⠑⠎⠀
⠕⠋⠀⠁⠗⠞⠊⠉⠇⠑⠎⠀⠊⠝⠀⠞⠓⠑⠀⠀⠀⠀⠀⠀⠀⠀⠠⠑⠝⠛⠊⠝⠑⠑⠗⠊⠝⠛⠀
⠠⠗⠑⠉⠕⠗⠙⠂⠀⠼⠁⠊⠚⠚⠆⠀⠁⠇⠎⠕⠀⠞⠓⠑⠀⠠⠁⠍⠑⠗⠊⠉⠁⠝⠀
⠠⠁⠗⠉⠓⠊⠞⠑⠉⠞⠂⠀⠼⠁⠊⠚⠚⠲⠀⠀⠀⠀⠀⠀⠼⠋⠀
⠦⠠⠁⠗⠉⠓⠊⠞⠑⠉⠞⠥⠗⠁⠇⠀⠠⠁⠉⠕⠥⠎⠞⠊⠉⠎⠂⠴⠀⠠⠏⠗⠕⠉⠲⠀⠕⠋⠀
⠠⠁⠍⠑⠗⠲⠀⠠⠁⠉⠁⠙⠲⠀⠕⠋⠀⠠⠁⠗⠞⠎⠀⠁⠝⠙⠀⠀⠀⠀⠀⠀⠀⠀
⠠⠎⠉⠊⠑⠝⠉⠑⠎⠲⠀⠠⠧⠕⠇⠲⠀⠼⠙⠃⠂⠀⠏⠏⠲⠀⠼⠙⠊⠤⠓⠙⠂⠀⠼⠁⠊⠚⠋⠲
⠀⠀⠀⠀⠀⠀⠼⠛⠀⠠⠛⠲⠀⠠⠺⠲⠀⠠⠎⠞⠑⠺⠁⠗⠞⠲⠀
⠦⠠⠁⠗⠉⠓⠊⠞⠑⠉⠞⠥⠗⠁⠇⠀⠠⠁⠉⠕⠥⠎⠞⠊⠉⠎⠂⠴⠀⠠⠎⠊⠃⠇⠑⠽⠀
⠠⠚⠕⠥⠗⠝⠁⠇⠀⠕⠋⠀⠀⠀⠀⠀⠀⠀⠀⠠⠑⠝⠛⠊⠝⠑⠑⠗⠊⠝⠛⠂⠀⠠⠍⠁⠽⠂⠀
⠼⠁⠊⠚⠉⠲⠀⠠⠏⠥⠃⠇⠊⠎⠓⠑⠙⠀⠃⠽⠀⠠⠉⠕⠗⠝⠑⠇⠇⠀
⠠⠥⠝⠊⠧⠑⠗⠎⠊⠞⠽⠂⠀⠠⠊⠞⠓⠁⠉⠁⠂⠀⠀⠀⠀⠀⠀⠀⠀⠠⠝⠲⠀⠠⠽⠲⠀⠀⠀⠀
⠼⠓⠀⠦⠠⠟⠥⠁⠇⠊⠞⠎⠀⠁⠉⠕⠥⠎⠞⠊⠟⠥⠑⠎⠀⠙⠑⠀⠉⠑⠗⠞⠁⠊⠝⠑⠎⠀
⠎⠁⠇⠇⠑⠎⠀⠏⠕⠥⠗⠀⠇⠁⠀⠧⠕⠊⠭⠀⠏⠁⠗⠇⠑⠲⠴⠀⠀⠀⠀⠀⠀⠀⠀
⠠⠉⠕⠍⠏⠞⠑⠎⠀⠠⠗⠑⠝⠙⠥⠎⠂⠀⠼⠁⠙⠃⠂⠀⠼⠓⠛⠓⠂⠀⠼⠁⠊⠚⠋⠲⠀⠀⠀⠀
⠼⠊⠀⠠⠺⠲⠀⠠⠎⠲⠀⠠⠋⠗⠁⠝⠅⠇⠊⠝⠲⠀⠦⠠⠙⠑⠗⠊⠧⠁⠞⠊⠕⠝⠀⠕⠋⠀
⠠⠑⠟⠥⠁⠞⠊⠕⠝⠀⠕⠋⠀⠠⠙⠑⠉⠁⠽⠊⠝⠛⠀⠠⠎⠕⠥⠝⠙⠀⠊⠝⠀⠀⠀⠀⠀⠀⠀⠀
⠁⠀⠠⠗⠕⠕⠍⠀⠁⠝⠙⠀⠠⠙⠑⠋⠊⠝⠊⠞⠊⠕⠝⠀⠕⠋⠀⠠⠕⠏⠑⠝⠀⠠⠺⠊⠝⠙⠕⠺
⠀⠠⠑⠟⠥⠊⠧⠁⠇⠑⠝⠞⠀⠕⠋⠀⠠⠁⠃⠎⠕⠗⠃⠊⠝⠛⠀⠀⠀⠀⠀⠀⠀⠀

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.