- Introduction.
- Six free voice-generated AI tools available
- VOICEVOX | Free Singing Voice Synthesis
- CoeFont | Create your own AI voice for free
- Speechify | also available as a Google Chrome extension
- SoftTalk | Available for older laptops
- Mr. Read Aloud | Speech Generation on the Browser
- VALL-E X (Microsoft)| Translation to English and Chinese also available
- Textok | Japanese document reading software that runs on Windows OS only
- 9 Paid Speech Generation AI Tools
- VOICEPEAK | 6-narrator set of buy-out models
- CoeStation | Voice of celebrities also available
- AITalk | More human-like Japanese speech generation
- Murf.AI | For those who want to create video images at the same time
- ReadSpeaker | 45 languages
- Voice Space | Voice change and avatar generation are also available.
- Text-to-Speech AI | Google’s high-performance speech generation AI tool
- Koemotion | Can be combined with face motion
- VoxBox | Convert image/PDF/text to audio
- summary
Introduction.
This article lists voice generation AI tools, divided into free and paid, and introduces their features, fees, and official website URLs. We hope you will find this information useful in selecting a tool.
Six free voice-generated AI tools available
| service name | feature | Charge | uniform resouce locator |
|---|---|---|---|
| VOICEVOX | Character voice generation and prototype versions of singing voices are available for trial. Compatible with Windows / Mac / Linux | Completely free of charge (for commercial and non-commercial use) | https://voicevox.hiroshiba.jp/ |
| CoeFont STUDIO | Synthesis using the voices of announcers and voice actors is possible. It can also generate its own voice. | Free Plan: Generated audio cannot be used for commercial purposes. Standard Plan: 3,300 yen/month Plus Plan: Please inquire. | https://coefont.cloud/ |
| Speechify | Specialized in text-to-speech. Can be used for learning support with multilingual support. Googl e Chrome extension provided. | Free Plan Paid plan ($139/year) | https://speechify.com/ja/ |
| SoftTalk | A simple voice generation tool that runs nimbly. | totally free | https://w.atwiki.jp/softalk |
| read aloud | Easy voice generation in the browser. Can be used for commercial purposes. | Trial Plan: Free Plans vary depending on the number of characters read out. Basic Plan：980 yen/month Value Plan: 1,980 yen/month Premium Plan: 2,980 yen/month | https://ondoku3.com/ja/ |
| VALL-E X | Not only converts voice, but can also reflect emotional expression – Voice generation from 3-second voice samples – Translation into English and Chinese | free | https://www.microsoft.com/en-us/research/project/vall-e-x/overview/ |
VOICEVOX | Free Singing Voice Synthesis
feature
- Free character voice generation. Simple UI and singing voice can be tested. Medium quality text-to-speech and singing voice synthesis.
- 30 characters are available as speakers and can be used according to the voice characteristics of each character.
Fee: Completely free of charge
URL: https://voicevox.hiroshiba.jp/
CoeFont | Create your own AI voice for free
feature
- Narration generation using the voice of an announcer or voice actor is possible.
- You can also have an AI voice created by simply recording your own voice for 50 sentences and 5 minutes.
Fee: Free plans available (generated audio cannot be used for commercial purposes)
URL: https://coefont.cloud/
Speechify | also available as a Google Chrome extension
feature
- Text-to-Speech (TTS), which reads text out loud. Capable of reading out a variety of textual information such as articles, PDFs, etc.
- Suitable not only for iPhone, but also for those who want to read English text on their PC as it can be added as a Google Chrome extension
Price: Free plan available. Paid plan ($139 per year)
URL: https://speechify.com/ja/
SoftTalk | Available for older laptops
feature
- Simple, lightweight voice generation tool. Can be used on older PCs.
- Ability to read out sentences containing Kanji characters and English
- Equipped with a “Kuumimimi” function that forces the “Microsoft Sam” speech synthesizer engine, which can only speak English, to speak Japanese.
- MeCab: Morphological analysis engine, tdmelodic: Tokyo Dialect High-Low Accent Dictionary
Fee: Free of charge
URL:https://w.atwiki.jp/softalk
Mr. Read Aloud | Speech Generation on the Browser
feature
- Easy voice generation in the browser with no installation required
- Generated audio can be downloaded in mp3 format
- Ability to use SSML, a markup language for speech
- Commercial use permitted
Charge
- Trial Plan: Free
- Basic Plan: ¥980/month (reading 200,000 characters/month)
- Value Plan: ¥1,980/month (450,000 readable characters/month)
- Premium Plan: 2,980 yen/month (1,000,000 readable characters/month)
URL:https://ondoku3.com/ja/
VALL-E X (Microsoft)| Translation to English and Chinese also available
feature
- A voice-generating AI released by Microsoft in 2023 that not only converts voices but can also reflect emotional expressions.
- Can synthesize speech from voice samples of only 3 seconds
- Translation into English and Chinese (by inputting “English speaking voice” and “Chinese text”, it is possible to have the reproduced voice read out Chinese)
- Commercial use permitted
Fee: Free of charge
URL:https://www.microsoft.com/en-us/research/project/vall-e-x/overview/
Textok | Japanese document reading software that runs on Windows OS only
feature
- Free, voice-generated AI tool for Japanese
- Generatable voices are male and female voices
- Compatible with Windows 10/8/7/Vista OS only (not Mac compatible)
Fee: Free of charge
URL:https://gui.jp.net/textalk/
9 Paid Speech Generation AI Tools
| service name | feature | Charge | uniform resouce locator |
|---|---|---|---|
| VOICEPEAK | Rich emotional character voices | Normal Edition: 29,800 yen (buyout) Download version: 23,800 yen (buyout) | https://www.ah-soft.com/voice/6nare/ |
| Coe Station | Celebrity voices and custom voices can be created. Also available in a smartphone app. | From 55,000 yen/month | https://coestation.jp/ |
| AITalk | Speech synthesis system for the Japanese market that can generate a variety of speech patterns. | Inquiry required | https://www.ai-j.jp/ |
| Murf.AI | Video narration and human-like emotional expression are possible. Supports voice tone adjustment. | From $19/month | https://murf.ai/ |
| ReadSpeaker | Multilingual speech generation service for education and marketing. | Inquiry required | https://readspeaker.jp/ |
| Voice Space | It offers multilingual translation and voice change, and more than 200 AI voices. | Inquiry required | https://www.voice-space.com/ |
| Text-to-Speech AI | High-performance voice-generated AI tools from Google | Charged on a monthly basis based on the number of characters sent to the service for text-to-speech | https://cloud.google.com/text-to-speech?hl=ja |
| Koemotion | Realistic character voices are generated in conjunction with face motion. | – Koemotion Trial: Free – Koemotion Light: 550 yen / month – Koemotion Standard: 3,300 yen / month – Koemotion Business: 18,000 yen / month and up | https://koemotion.com/ |
| VoxBox | Multifunctional tool with excellent audio editing capabilities. | – Free trial version: 0 yen (up to 2,000 characters to be read out) – Full version: 2,580 yen and up (buy-out; more than 260,000 characters to be read out) | https://www.imyfone.com/voice-generator/ |
VOICEPEAK | 6-narrator set of buy-out models
feature
- 6 narrator sets available for commercial use
- While most commercial services are subscription or pay-as-you-go models
Price: 23,800 yen and up (buyout)
URL:https://www.ah-soft.com/voice/6nare/
CoeStation | Voice of celebrities also available
feature
- Celebrity and original custom voices can be created. Also available on smartphone apps.
Charge
- CoeStation (smartphone app): free of charge
- Editor: 55,000 yen/month (with 2 coefficients in Japanese, unlimited use)
- Web API: 77,000 yen/month (with 2 Japanese coefficients, up to 100,000 requests) *11,000 yen per 100,000 requests thereafter (tax included)
URL:https://coestation.jp/
AITalk | More human-like Japanese speech generation
feature
- Speech synthesis system for the Japanese market. Supports a variety of speech situations.
- Combines the conventional “waveform connection synthesis method” with the “new DNN speech synthesis method” that utilizes the latest deep learning technology to achieve more human-like speech generation.
Fee: Inquiry required
URL:https://www.ai-j.jp/
Murf.AI | For those who want to create video images at the same time
feature
- Real-time voice conversion is possible
- Provides accurate text-to-speech in more than120 voices and 20 languages
- Real-time video and audio processing, pitch and emphasis functions, and punctuation controls for additional realism.
- Video can also be created, making it suitable for those who want to create video at the same time.
Price: $19/month and up (free plans also offered on a trial basis)
URL:https://murf.ai/
ReadSpeaker | 45 languages
feature
- This multilingual voice generation service is used for educational and marketing purposes.
- Global speech generation for 45 languages
- Approximately 80 speakers for a wide variety of situations
Fee: Inquiry required
URL:https://readspeaker.jp/
Voice Space | Voice change and avatar generation are also available.
Features: multilingual translation and voice change; provides more than 200 AI voices; can be used as a voice-over for a variety of languages; can be used as a voice-over for a variety of languages.
Charge
- Free Plan: Free of charge
- Creator Plan: 3,000 yen/month (annual lump-sum payment) Commercial use permitted
- Business Plan: 21,000 yen/month (annual lump-sum payment)
- Enterprise Plan: Inquiry required
URL:https://voicespace.ai/
Text-to-Speech AI | Google’s high-performance speech generation AI tool
feature
- It has various functions such as real-time text-to-speech conversion, output with natural intonation, and multilingual generation.
- Pay-as-you-go pricing based on the number of text-to-speech characters, and reasonable prices
Charge
- Charged on a monthly basis based on the number of characters sent to the service for speech synthesis
- The first 1 million characters of WaveNet audio are free every month
- The first 4 million characters per month are free for all standard voices except WaveNet
- Charged per 1,000,000 characters after the free quota
URL: https://cloud.google.com/text-to-speech?hl=ja
Koemotion | Can be combined with face motion
feature
- Voice generation combined with face motion is possible.
- AI voice synthesis function and face motion synchronized with synthesized voice can be generated, and combined with 2D models, 3D models, and image generation AI, it is possible to move the character’s facial expressions in accordance with the generated voice.
Charge
- Koemotion Trial: Free
- Koemotion Light: 550 yen / month
- Koemotion Standard: 3,300 yen / month
- Koemotion Business: 18,000 yen / month and up
URL: https://koemotion.com/
VoxBox | Convert image/PDF/text to audio
feature
- Can convert images/PDF/text to speech and supports over 70 languages
Charge
- Free trial version: 0 yen (up to 2,000 characters to be read out)
- Full version: from 2,580 yen (buy outright; more than 260,000 words to be read)
URL: https://jp.imyfone.com/voice-generator/
summary
While free tools are easy to try, they are often limited in the number of uses and functions. Paid tools, on the other hand, are highly customizable and can be used for commercial purposes, making them ideal for corporate branding and customer service. Depending on your application and budget, you can choose between free and paid tools.
