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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.