6.2 What You Can Hear ¶
Aural Presentation can use one or more of these forms of feedback:
- Speech conveys content, labels, prompts, results, and status. Added speech
should explain meaning that is not already clear from the content.
- Voice changes characteristics of spoken content. Named logical voices
make distinctions such as headings, annotations, warnings, or quoted text
portable across speech engines.
- Auditory cues are short recognizable sounds associated with semantic
events or objects. A sound pack supplies the concrete audio for those cue
names.
- Tones convey compact information using a named pitch and duration. They
are useful when a short distinction is preferable to speech or a sampled
sound.
- Pauses separate related parts of a presentation without adding words.
- Spatial presentation can place speech or cues across supported output.
When the selected backend cannot provide the requested placement, Emacsvox
keeps the content audible using its documented fallback.
These forms can be ordered around the content. For example, entering a section
might play a cue, speak the heading in a distinctive voice, and leave a short
pause before body text. The presentation is one result, not several unrelated
notifications.
The precise sound may vary by speech engine, installed voices, sound pack, and
audio hardware. The intended distinction should remain understandable even
when a simpler backend uses fewer voice characteristics or centered output.