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Diffstat (limited to 'src/sounds/README.md')
| -rw-r--r-- | src/sounds/README.md | 14 |
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diff --git a/src/sounds/README.md b/src/sounds/README.md new file mode 100644 index 0000000..08b8a4d --- /dev/null +++ b/src/sounds/README.md @@ -0,0 +1,14 @@ +The `[0-9a-f].wav` files in this directory contain a human voice +speaking each of the 16 hexadecimal digits. If a captcha string +consists of just hexadecimal digits (as is the case for captchas +generated by the [captcha.c module](/finfo/src/captcha.c)) then these WAV +files can be concatenated together to generate an audio reading of the +captcha, which enables visually impaired users to complete the +captcha. + +Each of the WAV files uses 8000 samples per second, 8 bits per sample +and are 6000 samples in length. + +The recordings are made by Philip Bennefall and are of his own voice. +Mr. Bennefall is himself blind and uses this system implemented with these +recordings to complete captchas for Fossil. |