[SAMPLE] Nexdata | Multilingual Speech Synthesis Data | 400 Hours | TTS Data | Audio Data | AI ...

1. Specifications
Format : 44.1 kHz/48 kHz, 16bit/24bit, uncompressed wav, mono channel.

Recording environment : professional recording studio.

Recording content : general narrative sentences, interrogative sentences, etc.

Speaker : native speaker

Annotation Feature : word transcription, part-of-speech, phoneme boundary, four-level accents, four-level prosodic boundary.

Device : Microphone

Language : American English, British English, Japanese, French, Dutch,Mandarin Chinese, Catonese, Canadian French,Australian English, Italian, New Zealand English, Spanish, Mexican Spanish

Application scenarios : speech synthesis

Accuracy rate: Word transcription: the sentences accuracy rate is not less than 99%.
Part-of-speech annotation: the sentences accuracy rate is not less than 98%.
Phoneme annotation: the sentences accuracy rate is not less than 98% (the error rate of voiced and swallowed phonemes is not included, because the labelling is more subjective).
Accent annotation: the word accuracy rate is not less than 95%.
Prosodic boundary annotation: the sentences accuracy rate is not less than 97%
Phoneme boundary annotation: the phoneme accuracy rate is not less than 95% (the error range of boundary is within 5%)

2. About Nexdata
Nexdata owns off-the-shelf 200,000 hours of speech recognition data, 800TB of image/video data, about 2 billion pieces of NLP data. These ready-to-go AI & ML Training Data support instant delivery, quickly improve the accuracy of AI models. For more details, please visit us at https://www.nexdata.ai/datasets/tts?source=Datarade