Nocall Launches New Japanese Voice Synthesis Engine for Realistic Conversations in AI Calls

Nocall Unveils New Voice Synthesis Engine to Enhance AI Conversations

In a significant advancement for the AI communication sector, Nocall Corporation has officially introduced its proprietary voice synthesis engine, nocall Voice v2. This specialized engine is designed to cater specifically to the Japanese language and aims to enhance the conversation experience in AI-assisted calls. The release is set for November 2025, marking a pivotal moment for the company and its clients.

Background of the Release

With the growing adoption of the nocall.ai system—already facilitating over 1,000 automated calls monthly for various businesses—Nocall has recognized and addressed common concerns regarding AI-generated voices. Many users have expressed concerns about the naturalness of AI voices and the need for a high-quality audio experience that is especially accommodating for elderly users. Traditional AI calling systems often rely on third-party voice synthesis services, resulting in robotic and mechanical-sounding voices that fail to engage listeners effectively.

After a year of research and development, Nocall has successfully created a Japanese-focused voice synthesis engine that aims to resolve these prevalent issues, enabling a more human-like auditory experience.

Positioning in the AI Call Market

With the launch of nocall Voice v2, Nocall has effectively addressed the shortcomings of voice quality that have plagued synthetic conversation technology. The new engine has been rigorously optimized for Japanese interactions, enhancing aspects like back-channeling, pacing, and intonation. This ensures that conversations not only sound more natural but also possess a distinctly human quality.

Characteristics of Nocall Voice v2

Nocall Voice v2 comes with four distinct voice types that cater to various professional needs. Each voice is crafted to deliver a unique experience:

Voice Type	Characteristics	Common Use Cases
-----	-----------	---------
Standard+	A reliable and versatile standard voice	General business tasks
Male Business	A calming and trustworthy tone	B2B sales, reminder calls
Female Formal	A polite and easily understandable voice	Reminders, customer service
Female Casual	A friendly and soft impression	Customer support

For a sample of these voices, you can listen here.

Future Developments

Looking ahead, Nocall plans to continually build upon the foundation of nocall Voice v2. They have outlined ambitions to expand the range of voices based on different age groups, introduce custom voice features tailored for individual companies, and develop conversation models specialized in specific industries. The company is committed to enhancing its offerings and ensuring that AI communication continues to evolve successfully.

What is Nocall.ai?

Nocall.ai is a cloud-based SaaS service that automates telephone tasks using generative AI technologies. By integrating large language models, such as those found in ChatGPT, with Nocall’s unique audio synthesis model, the service achieves an impressive 98% automation rate that allows for conversations indistinguishable from human interaction.

Currently, Nocall.ai is utilized across various sectors, including human resources, automotive, IT, and real estate. It supports automation in sales, reminders, and general calling tasks while offering a suite of features such as customer management, automatic logging of calls, and customization of dialogue scenarios.

About Nocall Corporation

Founded on December 25, 2020, Nocall Corporation, located in Shinagawa, Tokyo, is led by CEO Shogo Hayashi. The company focuses on the development and provision of its automated dialing system, nocall.ai.

For further inquiries regarding this release, please contact:
Marketing Department, Nocall Corporation
E-mail: [email protected]