# VoiceAir > VoiceAir converts Chinese, English, Japanese and Korean text into natural speech with Doubao Seed TTS 2.0, and can translate the script before speaking it, so a Chinese draft can become an English, Japanese or Korean voice over. ## Key facts - Languages: Chinese (Mandarin), English, Japanese, Korean - Model: Doubao Seed TTS 2.0 (Volcengine) - Max length: 1,000 characters per generation - Formats: MP3, WAV, OGG Opus; sample rates 8 kHz to 48 kHz - Controls: speech rate -50%..+100%, pitch -12..+12, loudness -50%..+100%, 9 emotions, trailing silence up to 5s - Free tier: 3,000 characters per month, personal use - Paid plans: Starter $9/50,000, Pro $29/300,000, Studio $99/1,500,000 characters per month - Translation does not consume character credits - Audio is generated on demand and never stored on the server ## Limits - No voice cloning - No real-time streaming or conversational agents - No music, singing or lip-sync - Safety and emergency airport announcements must use approved recordings ## Pages - [Chinese text to speech that sounds like a person](https://voice.tokenrize.cn/chinese-text-to-speech): Turn Chinese text into natural Mandarin speech with Doubao Seed TTS 2.0. Adjust speed, pitch and emotion, then download MP3 or WAV in seconds. - [Korean voice generator for narration and dialogue](https://voice.tokenrize.cn/korean-voice-generator): Generate natural Korean speech from text with expressive 2.0 voices. Preview, fine-tune and download studio quality audio online. - [Japanese text to speech with natural intonation](https://voice.tokenrize.cn/japanese-text-to-speech): Convert Japanese text into natural sounding speech. Choose a voice, set pace and emotion, and export MP3 or WAV instantly. - [Chinese to English voice over, without a translator](https://voice.tokenrize.cn/chinese-to-english-voice): Paste a Chinese script and get an English voice over in seconds. VoiceAir translates with a Doubao text model, then speaks it with a native English voice. - [Turn your podcast script into narration](https://voice.tokenrize.cn/text-to-speech-for-podcast): Turn your podcast script into narration with warm, natural AI voices. Control pace, tone and emotion, then download the audio. - [Voice over for product demos and listings](https://voice.tokenrize.cn/product-video-voiceover): Create multilingual voice overs for product demos, listings and ads. One script in, four languages out, ready to download. - [Airport announcements in four languages](https://voice.tokenrize.cn/airport-announcement-generator): Generate clear gate, boarding and delay announcements in English, Chinese, Japanese and Korean for ground staff who do not speak the language. - [A lower cost alternative with strong Chinese](https://voice.tokenrize.cn/elevenlabs-alternative): VoiceAir pairs Doubao Seed TTS 2.0 with translation, so Chinese teams can publish in four languages at a fraction of the usual cost. ## Company - Website: https://voice.tokenrize.cn/ - Contact: kai.su@vectorcloud.io