Baidu Text-to-Speech vs TTSReader

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.

TTSReader converts text and documents into speech, reads webpages aloud, and can create downloadable audio. It supports PDF, DOCX, TXT, CSV, and EPUB files, with MP3 and WAV listed as export formats and a maximum input of 200000. Voices come from Google, OpenAI, xAI, Microsoft, and proprietary AI providers. During playback, the reader highlights the current text and remembers the article and position so listening can resume later. Users can edit text while it plays and combine voices, languages, and speeds in one file. The service identifies proofreading, education, accessibility, language learning, audiobook creation, and voice-over production as uses. Its website plugin is free and includes playback controls, voice and speed selection, automatic scrolling, and saved preferences; the maker says it does not track users, use cookies, or show ads. API access is available, though the synchronous API recommends only a few thousand characters, calls 5k safe, and notes requests can time out after five minutes. The Free plan costs nothing and is for personal use only, with 5k premium-voice characters. Premium is $10.99 a month for one user and 1,000,000 premium characters per month. Pay-as-you-go plans cost $10 a month for 200,000 characters, $32 a month for 1,000,000, or $300 a month for 10,000,000; credits expire after one year, extended by each new purchase.