Baidu Text-to-Speech vs Spex-TTS
Baidu Text-to-Speech
cloud.baidu.comSpex-TTS
gandr.aiSide by side
| Figure | Baidu Text-to-Speech | Spex-TTS |
|---|---|---|
| Price from | Free | $10/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 14 | 6 |
| Spec score · Text-to-Speech Software | 9.3 (#3) | 8.3 (#87) |
| Spec score · Text-to-speech tools | 9.3 (#5) | 8.7 (#34) |
| API access | Yes | Yes |
| Export formats | mp3,pcm,wav | ["WAV","raw PCM (pcm_s16le)"] |
| Languages | 2 | 23 |
| Platforms | web,api,ios,android,linux | ["web","api"] |
| Purpose | Converts text into natural-sounding speech for applications and devices. | Spex-TTS is a text-to-speech engine that grew out of a production live-translation product. |
| Streaming | Streaming synthesis supports bidirectional text and speech so synthesized audio can be heard nearly as text is entered. | The API offers complete WAV responses, HTTP server-sent event streams, and WebSocket audio streams. |
| Voice cloning | Yes | The API supports instant voice cloning from ten seconds of a consenting speaker’s audio, and the clone speaks 23 languages. |
Plans
Baidu Text-to-Speech
- Short-text Basic Voice LibraryPrice not published
- Short-text Premium Voice LibraryPrice not published
- Short-text Large-model and Premium Voice LibraryPrice not published
- Long-text Basic Voice LibraryPrice not published
- Long-text Premium Voice LibraryPrice not published
- Long-text Large-model and Premium Voice LibraryPrice not published
- Streaming Basic Voice LibraryPrice not published
- Streaming Premium Voice LibraryPrice not published
- Streaming Large-model and Premium Voice LibraryPrice not published
- 离线语音合成试用版Free
Spex-TTS
- FreeFree
- Take a Gandr$10 a month
- Pro$50 a month
- Scale / flat rate$150 a month
- Scale / flat rate$150 a year
- EnterprisePriced on request
In their own words
Baidu Text-to-Speech
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.