How can Azure's Speech SDK improve application accessibility?

Azure's Speech SDK significantly enhances application accessibility by facilitating the conversion of text to speech and vice versa. This functionality is crucial for individuals with visual impairments or learning disabilities who benefit from auditory content rather than textual formats. By utilizing text-to-speech capabilities, applications can read content aloud, allowing users to engage with material in a more accessible way. Conversely, speech-to-text capabilities enable users to speak their input, which can assist those who have difficulties with typing or reading. This dual functionality effectively opens up applications to a broader range of users, making them more inclusive for people with diverse abilities.

The other options do not address the core function of enhancing accessibility through speech capabilities. Advanced graphics and a graphical user interface serve different purposes and do not specifically cater to needs related to auditory input or output. Limiting speech functionality to specific languages can also hinder accessibility, as it restricts the ability of non-native speakers or individuals communicating in less common languages to effectively use the application.