customPronunciations property
The pronunciation customizations are applied to the input.
If this is set, the input is synthesized using the given pronunciation customizations. The initial support is for English, French, Italian, German, and Spanish (EFIGS) languages, as provided in VoiceSelectionParams. Journey and Instant Clone voices aren't supported. In order to customize the pronunciation of a phrase, there must be an exact match of the phrase in the input types. If using SSML, the phrase must not be inside a phoneme tag.
Optional.
Implementation
CustomPronunciations? customPronunciations;