BotDetect Audio CAPTCHA Examples

BotDetect CAPTCHA provides an audio Captcha alternative to assure human verification is accessible to the blind and other visually impaired people. BotDetect is developed with the Access Board Section 508 guidelines in mind, and produces XHTML 1.1 and WCAG AAA compliant markup.

By default, BotDetect audio Captcha uses Html5 <audio> elements for sound playback. It also detects browsers that don't support Html5 Wav audio fully or properly, and automatically falls back to using <embed> and <object> elements instead. This ensures such browsers can still play audio Captcha and remain as accessible as they were before Html5 audio was introduced.

Audio CAPTCHA Sound Security

BotDetect audio Captcha functionality uses 10 different sound styles, each style using an unique combination of effects and noises. This makes audio Captcha much more resistant to any automated audio analysis, especially when the sound style used for each generated audio Captcha is picked randomly.

Dispatch
 
HiveMind
 
Industrial
 
Pulse
 
Radio
 
RedAlert
 
Robot
 
Scratched
 
Synth
 
Workshop
 

Multi-language Audio CAPTCHA Pronunciations

BotDetect CAPTCHA offers a variety of different audio Captcha localized pronunciations. Each localized audio Captcha pronunciation is recorded by a native speaking voice-over artist in a professional recording studio, which guarantees the best quality of sounds used for generation of the audio Captcha alternative.

To allow maximum flexibility in choosing locale support that suits your needs, sound resources have been separated from the main component into external language-dependent sound packages. These can be downloaded separately from the BotDetect localizations page when you need them.

Here is a sample selection of some popular audio Captcha localizations:

French
 
German
 
Portuguese
 
Russian
 
Spanish
 
Chinese
 
Hebrew
 
Hindi
 
Japanese
 
Korean
 

You can find all currently supported localized audio Captcha pronuciations on BotDetect localizations page.

More About BotDetect (Audio) CAPTCHA

If you prefer a large sample of randomly generated audio Captcha sounds, you can also hear all BotDetect Captcha sound styles in action (and compare how various Captcha settings affect them) by running the BotDetect Captcha features demo.

For key integration steps, see the BotDetect Developer Crash Courses for PHP, ASP.NET and ASP.