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“Listening” to PDFs (in MP3 format) Dorian Miller Listening Hands free activity For the blind Listen instead of reading Technical Approach Store as MP3 and listen with player Alternatives Books on Tape bulky Dedicated machine TTS http://www.ostrichsoftware.com/

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“Listening” to PDFs (in MP3 format)

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“Listening” to PDFs (in MP3 format)

Dorian Miller


Listening

  • Hands free activity

  • For the blind

  • Listen instead of reading


Technical Approach

  • Store as MP3 and listen with player

  • Alternatives

    • Books on Tape bulky

    • Dedicated machine TTS

      • http://www.ostrichsoftware.com/

    • Laptop with TTS software


PDF-2-HTML

HTML Parser

MS TTS

Lame wav-mp3 converter

PDF to MP3 converter

Python

Input

PDF

Output

MP3


Demo

  • IP fall 2002

    • Spatial Audio Interface: Providing landmark information to help the blind navigate outdoors

  • [Play audio]

  • Personal preference for voices (TTS engines)

    • Jaws uses Eloquence

    • MS TTS

    • Dragon Naturally speaking

    • IBM Via Voice


Nike MP3 player no display


Enhancements

  • Browsing document

  • Audio quality


Document browsing

  • How to divide paper into tracks

    • By section

    • By page

  • Maintaining format

  • Tradeoff

    • More tracks, more to skim through


Hyperlink style browsing

  • Ex. Link in table of contents to section.

  • Track in playlist associated with link


MP3 Audio

  • Characteristics of spoken text

    • MS TTS speaks faster when

    • Male/Female voice to announce headings and read text

      1.2 Parts of the brain

      In this section I will explain the importance of the hippocampus (a part of the brain).


MP3 speed

  • Changing speed

    • Maintain pitch of different notes.

  • Favorite tool of musicians

  • Explained

    • http://www.seventhstring.demon.co.uk/xscribe/slowdown.html


Implementation

  • http://rockbox.haxx.se/

  • http://www.archos.com/


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