Baidu Text-to-Speech vs Voicemaker

Baidu Text-to-Speech converts text into speech for applications and devices, with Chinese, English, mixed Chinese-English, and more than 70 voice styles available through its online service. Users can change speech rate, pitch, volume, and supported emotional effects; Chinese polyphonic characters can be annotated with pronunciation. Streaming synthesis can play audio nearly as text is entered, and long-text synthesis handles up to 100,000 Chinese characters in one request. Baidu provides HTTP and WebSocket APIs, online and offline SDKs, and Android and iOS SDKs for phones and smart devices. Offline synthesis is intended for settings with weak or no network access, including mobile apps, readers, robots, and smart hardware. Listed uses include audiobook reading, news and order announcements, and smart hardware. Short-text API requests must stay under 1,024 GBK bytes, with 120 bytes or less recommended. Export formats are MP3, PCM, and WAV. The service offers a free trial; offline trial and license plans are listed, while prices for other listed plans are not provided.

Voicemaker turns typed or pasted text into audio, with controls for voice speed, pitch, and volume. Its listed tools also include speech-to-speech voice conversion and speech-to-text. The voice library lists 500 voices, and the service supports up to 140 languages on paid plans; the Free plan lists 120. Output formats include MP3, OGG, WAV, OPUS, AAC, and telephony audio. Voicemaker is available on the web and through a pay-as-you-go REST API for integrating text-to-speech, speech-to-speech, and speech-to-text into apps and workflows. Plans use credits, charged at conversion rather than download, with CJK characters using two credits each. The Free plan costs nothing and allows limited generations, up to 250 characters per conversion, and personal use. Starter costs $5 a month and includes 200,000 monthly credits, a 3,000-character limit, and 140 languages. Paid plans include commercial usage rights; the free tier is for personal, internal evaluation, or non-commercial use. Voicemaker supports SSML.