Skip to content

Library / Engineering & Technology / Acoustics of auditoriums / Braille

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 · 349 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.