BytePlus TTS
Context-aware speech with multilingual voices and text-guided control over tone, pace, and emotion.
Try BytePlus TTS
Paste a script, pick a voice, and generate.
Professional voiceover for every use case
Audiobooks and long-form reading.
Use contextual delivery and measured pauses to keep narrative passages engaging and easy to follow.E-learning and course modules.
Explain technical subjects with controlled pacing and support for spoken formulas and symbols.Explainer and product demos.
Turn feature walkthroughs into polished voiceovers with a confident, informative delivery.IVR and phone prompts.
Create concise menus and service messages with steady pronunciation and an approachable tone.Uses context to shape rhythm and pauses
BytePlus TTS 2.0 can consider the script, a text instruction, and reference context when deciding how a line should sound. This helps dialogue and narration follow the meaning of a passage instead of applying one delivery to every sentence.
- •Text-based delivery guidance
- •Optional reference context
- •Context-sensitive tone and rhythm
- •More purposeful pauses
- •Suitable for narration and dialogue
Speaks across a multilingual voice library
BytePlus provides preset voices for multiple languages, with some voices supporting multilingual output. Language and accent availability varies by voice, so users can preview compatible options before producing a complete project.
- •English and Chinese voice options
- •Major Asian and European languages
- •Voice-specific language coverage
- •Multilingual voice options
- •Preset voices for quick selection
Controls tone, emotion, speed, and style
Text guidance can adjust emotion, dialect, tone, and speaking speed, while TTS 2.0 also supports direction over pitch, timbre, and style. These controls make it easier to match a delivery to an ad, lesson, story, or assistant response.
- •Emotion and tone direction
- •Speaking-speed control
- •Dialect guidance
- •Pitch and timbre adjustments
- •Style-based delivery
- •Script-aware performance
Reads formulas and symbols for lessons
BytePlus trained TTS 2.0 to verbalize structured mathematical and scientific material. The provider reports roughly 90% accuracy when reading complex formulas and symbols, making the model useful for technical education and accessible course content.
- •Mathematical formula reading
- •Scientific symbol support
- •Useful for technical lessons
- •Clearer spoken course material
- •Supports accessible explanations
How it works
1
Paste your script
Enter the exact words you want the voice to read. Add punctuation and paragraph breaks where natural pauses should occur, then divide very long projects into manageable sections.
2
Pick a voice
Choose a preset voice that supports your script’s language and fits its destination. Preview a short passage before generating a full narration, lesson, advertisement, or phone menu.
3
Generate and download
Create the speech and listen for pacing, pronunciation, and emotional fit. Revise the script or delivery guidance if needed, then download the finished audio for your project.
Pricing for BytePlus TTS
Runs on credits — no per-model surcharges, no surprise billing.
15credits
per 100 characters
≈ 90 credits for a 600-character script (about a minute of speech)
Frequently asked questions
What is BytePlus TTS and how does it work?▾
BytePlus TTS is a text-to-speech system based on BytePlus Seed Speech TTS 2.0. You provide a script, select a compatible preset voice, and generate spoken audio, with optional text guidance and reference context to shape the delivery.
What languages does BytePlus TTS support?▾
BytePlus TTS 2.0 offers multilingual voices across major Asian and European languages, including options for English, Chinese, Japanese, Korean, Spanish, French, German, Portuguese, and Indonesian. Exact language and accent coverage depends on the selected voice, so preview the current library before producing a full project.
How many voices are available in BytePlus TTS?▾
BytePlus maintains a changing preset voice library rather than presenting one permanent universal total. TTS 1.0 emphasizes a larger selection of Chinese and English voices, while TTS 2.0 focuses on broader language support and contextual delivery.
Can I change the emotion, tone, or speed?▾
Yes. BytePlus TTS 2.0 supports text-guided control over emotion, dialect, tone, and speed, with additional direction for pitch, timbre, and speaking style. Available results can vary by voice and script.
Can I clone my own voice with BytePlus TTS?▾
BytePlus documents Voice Replication as a separate Seed Speech capability, so its availability may differ from the preset-voice TTS workflow offered here. If voice replication is enabled, you may only clone a voice you own or have explicit written permission to use.
How long can a BytePlus TTS script be?▾
The current Seed Speech synthesis API is limited by generated audio duration, with integrations documenting a cap of about 120 seconds of original-duration speech per request. Split audiobook chapters, lessons, and other long scripts into sections for more predictable editing and delivery.
What audio formats does BytePlus TTS output?▾
BytePlus Seed Speech integrations support common outputs including WAV, MP3, PCM, and OGG with Opus encoding. Exact download choices and sample-rate settings can depend on the endpoint and workflow being used.
Can I use BytePlus TTS voiceovers commercially?▾
Commercial usage depends on the applicable BytePlus terms, the BudgetPixel terms, and your rights to the script and any referenced voice material. Review the current provider terms before publishing paid advertisements, audiobooks, courses, or client work.
How much does BytePlus TTS cost?▾
Cost scales with script length and is billed per 100 characters. Short phone prompts use fewer credits than long lessons or audiobook chapters, so editing unnecessary words can reduce the total.
How does BytePlus TTS compare with other AI voice generators?▾
BytePlus TTS is positioned around contextual delivery, multilingual preset voices, and detailed text-guided control over speaking style. It is particularly relevant when a project needs emotion, pacing, or technical formula reading beyond the general text-to-speech baseline.
