Pronunciation Dictionary for Better TTS

Fix difficult words before synthesis

Names, product terms, abbreviations, and domain vocabulary are common sources of text-to-speech mistakes. VocalVia's pronunciation dictionary lets you define how a written term should be spoken, then check whether that rule appears in the current script.

Manage pronunciation while preparing audio in VocalVia TTS Studio

When to add a pronunciation rule

Create a rule when:

A person's or place's name has more than one common reading.
A brand uses an unusual spelling.
An acronym should be spoken as letters instead of a word.
A technical term is consistently mispronounced.
A foreign word needs a pronunciation suited to the episode language.

Do not add rules for every ordinary word. A small, reviewed dictionary is easier to maintain and less likely to create unintended replacements.

Add the written and spoken forms

Open TTS Studio, select Pronunciation, and enter:

The term exactly as it appears in the script.
A spoken form that makes the intended reading clear.
The scope offered by the interface, such as the current project or workspace.

Save the rule and keep it enabled. Existing rules can be edited, disabled, or deleted as your terminology changes.

Run the pronunciation check

Before generating audio, use the pronunciation check to see which enabled rules match the current script. This helps catch three common problems:

The term is spelled differently in the script.
A rule exists but is disabled.
A broad rule matches text you did not intend to change.

Preview a short segment containing the term before generating a long episode. If the result is still wrong, simplify the spoken form and test again.

Keep a consistent vocabulary

For a recurring show, use the same pronunciation for host names, products, and specialist terms across episodes. Workspace-level rules are useful for repeated vocabulary; project-level rules are safer for one-off exceptions.

Pronunciation rules improve how text is read. They do not change factual spelling in the visible script, so correct the script itself when the written form is wrong.