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tts-test-sentence

One canonical TTS test sentence — the rainbow sentence — translated across languages and scripts, for quickly sanity-checking multilingual text-to-speech voices (does the voice produce intelligible speech in its language?).

English source: After the rain, a colorful rainbow appeared in the sky, and the children went outside to look at it.

Each row: lang (BCP-47), language (name), script (ISO-15924), text (native translation), source_en. Some languages appear in multiple scripts (e.g. Serbian: sr-Cyrl / sr-Latn).

from datasets import load_dataset
ds = load_dataset("OpenVoiceOS/tts-test-sentence", split="train")

Many translations are best-effort (some AI-authored); corrections and additional languages/scripts are very welcome. The ~1000 long-tail MMS languages (one voice each) are not yet covered.

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