Publishing
Audiobook
第一章。寒く澄んだ4月の日、時計は13時を打っていた。田中一郎は顎を胸に埋め、ガラスの扉を素早くすり抜けた。
Languages & voices
Japanese text to speech voices
22 ReadSpeaker text to speech voices in Japanese (ja-JP): 13 female and 9 male, from 2 voice providers.
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Hear Japanese text to speech in your own words
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22 voices in Japanese
21 neural voices in Japanese
2 voice providers for Japanese
The catalogue
Japanese voices
Listen to every Japanese voice before you choose one. All 22 speak the same Japanese sample sentence.
Technical details of every Japanese voice
| Voice | Gender | Technology | Provider | Available in |
|---|---|---|---|---|
| Akira | Male | Neural | VoiceText-DNN | Cloud, Licensing |
| Erica | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Haruka | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Hayato | Male | Neural | VoiceText-DNN | Cloud, Licensing |
| Hikari | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Hina | Female | Neural | VoiceText-DNN | Cloud |
| Kanna | Female | Neural | VoiceText-DNN | Cloud |
| Kota | Male | Neural | VoiceText-DNN | Cloud |
| Kyoko | Female | - | Nuance | Cloud |
| Mayu | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Misaki | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Nao | Female | Neural | VoiceText-DNN | Cloud |
| Risa | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Robota | Male | Neural | VoiceText-DNN | Cloud |
| Ryo | Male | Neural | VoiceText-DNN | Cloud, Licensing |
| Sayaka | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Show | Male | Neural | VoiceText-DNN | Cloud, Licensing |
| Takeru | Male | Neural | VoiceText-DNN | Cloud, Licensing |
| Tsuna | Male | Neural | VoiceText-DNN | Cloud |
| Yuina | Female | Neural | VoiceText-DNN | Cloud, Licensing |
| Yuuji | Male | Neural | VoiceText-DNN | Cloud, Licensing |
| Yuuka | Female | Neural | VoiceText-DNN | Cloud, Licensing |
Cloud voices are available in ReadSpeaker’s online products; Licensing voices are available for on-premises and embedded deployments.
123 million
Japanese speakers worldwide.
Every one of them is a potential listener. ReadSpeaker gives your content a Japanese voice, in the Japanese they hear every day, on the web, in your documents, in your apps and on your devices.
Source
- Wikipedia. ISO 639:jpn. Retrieved 2026-08-26. Open the source
Use cases
What Japanese voices are used for
Three of the places a Japanese voice goes to work. Each one is read here by a different voice, drawn from the 22 Japanese voices in the catalogue.
Retail
Retail promo
お客様にお知らせいたします。この1時間限定で、電化製品売り場の全商品が30パーセント引きとなっております。ヘッドホン、スピーカー、アクセサリーのお得な商品は12番通路へどうぞ。
Banking
Banking alert
セキュリティ警告：新しいデバイスからお客様のアカウントにログインがありました。お心当たりがない場合は、すぐに不正防止センター（0120-555-012）までご連絡ください。
Sample
What you hear in Japanese
こんにちは。私の声であなたのウェブサイトを音声で読み上げます。あなたのテキス トを読み上げると、このようになります。Custom Voice
A Japanese voice that is yours alone
Akira speaks Japanese for everyone. A Custom Voice speaks it only for you: your own speaker, your own sound, trained into a voice no competitor can use.
Your speaker
We record a Japanese speaker you choose, or work from recordings you already own.
Your sound
The way your speaker says Japanese is kept, not smoothed into a neutral read.
Your products
The finished voice is delivered through the same products as every catalogue voice.
The whole catalogue
Explore every other language and accent
Japanese is one of the languages and accents ReadSpeaker speaks. Turn the globe, pick a pin, hear the voice.
FAQ
Japanese text to speech, answered
ReadSpeaker offers 22 Japanese text to speech voices, 13 female and 9 male. Every Japanese voice speaks Japanese (ja-JP), and each one can be played on this page before you choose.
123 million Japanese speakers worldwide, according to ISO 639:jpn on Wikipedia. Japanese text to speech lets you reach them in Japanese, the language they hear every day.
21 Japanese voices use neural synthesis: Akira, Erica, Haruka, Hayato, Hikari, Hina, Kanna, Kota, Mayu, Misaki, Nao, Risa, Robota, Ryo, Sayaka, Show, Takeru, Tsuna, Yuina, Yuuji and Yuuka. Neural voices model intonation across the whole sentence, which is what makes a Japanese reading sound spoken rather than assembled.
Yes. Of the 22 Japanese voices, 22 in ReadSpeaker's online products and 15 for on-premises and embedded deployments. Licensed Japanese voices run inside your own infrastructure, so no text ever leaves it.
The Japanese catalogue is built with 2 voice providers: Nuance and VoiceText-DNN. ReadSpeaker selects and tunes each Japanese voice, and serves them all through one interface.
Yes. ReadSpeaker Custom Voice builds a Japanese voice that belongs to your brand alone, trained on a speaker you choose, speaking the same Japanese you hear from Akira on this page. It is then delivered through the same products as every catalogue voice.