Multidimensional control capabilities for speech synthesis
Open-VoiceCanvas' language coverage is industry-leading, supporting 50+ languages including Chinese, English, Japanese, French, Spanish, etc., with special in-depth optimization for Chinese dialects (e.g. Cantonese). Each language offers an average of 3-5 different tones to choose from, such as "Brian" for British English and "Joanna" for American English.
The voice control parameters of the system include:
- Speech rate adjustment range 0.5-2.0x (base value 1.0)
- Simulation of natural fluctuations in pitch
- Intelligent insertion of statement stops
- Emotional expressivity regulation
Real-world tests show that adjusting the speech rate to 1.2x and selecting the "nova" tone optimizes the balance between intelligibility and naturalness. The project supports batch processing of long texts (up to 50,000 characters), which are automatically segmented and composited for seamless stitching.
This answer comes from the articleOpen source operational project integrating multiple advanced speech synthesis servicesThe
English 
简体中文 
日本語 
Deutsch 
Português do Brasil