Pronouncing digits one‑by‑one

Need your TTS to spell out numbers digit‑by‑digit instead of reading them as whole numbers? Wrap the sequence in a <digits> block.

Element	Required	Description
`<digits>`	✓	Opening tag that starts the digit‑override region.
Digits & separators	✓	Any digits (`0‑9`) and optional separators: spaces, dashes, parentheses, periods. Separators are skipped (or introduce brief pauses) during pronunciation.
`</digits>`	✓	Closing tag.

The tag works across all languages supported by the model. Digits are pronounced in the language currently active:
Auto-detected language, or
the language explicitly forced with language flag.

Example

My phone number is <digits>(123) 456‑7890</digits> and my credit card is <digits>1234‑5678‑9012‑3456</digits>.

The engine will voice:

"My phone number is one two three four five six seven eight nine zero and my credit card is one two three four five six seven eight nine zero one two three four five six."

Inline digits‑pronunciation example

{
  "model_id": "asyncflow_v2.0",
  "transcript": "My phone number is <digits>(123) 456-7890</digits> and my credit card is <digits>1234-5678-9012-3456</digits>.",
  "voice": { "mode": "id", "id": "e0f39dc4-f691-4e78-bba5-5c636692cc04" },
  "output_format": {
    "container": "raw",
    "encoding": "pcm_s16le",
    "sample_rate": 44100
  }
}

The engine will render:

"My phone number is one two three four five six seven eight nine zero and my credit card is one two three four five six seven eight nine zero one two three four five six."

Pronouncing digits one‑by‑one

Inline digits‑pronunciation example#

Inline digits‑pronunciation example