1.
Chinese, English and Mixed Chinese and English.
2. Could text with rotated directions be recognized ?
Deflection of the text and the horizontal axis less than ±15° are supported.
3.
a. Pixel requirements: at least 15px on the shortest side and 4096px on the longest side
b. Size requirement: <4MB
c. Format requirements: JPEG, PNG, BMP
4.
You can send a maximum of five concurrent requests for Online Text to Speech.