VDK Runtime 6.4.0 - 8th October 2026

Summary

We’re excited to announce the release of VDK Runtime 6.4.0, introducing an expanded selection of speech models and voices, along with improvements to logging and text-to-speech capabilities.

This release adds 8 new Neural ASR models and updates 15 existing Neural ASR models, providing expanded speech recognition capabilities. It also introduces 29 new voices and updates 68 existing voices across Neural, Embedded-Premium, Embedded-High, Embedded-Pro, Embedded-Compact, and Premium-High qualities.

The release also unifies the logging experience across the VSDK, CSDK, and VDK-Service components and introduces TTS watermarking for enhanced text-to-speech capabilities.

We’re excited to announce the release of VDK Runtime 6.4.0, which resolves issues caused by library linking conflicts.

This release improves dependencies integration to enhance exception handling and application stability. This change preserves detailed error information, resulting in more reliable error reporting and, on Android, resolves crashes that could occur in certain error scenarios.

Learn More

Additional updates and refinements have been made across the VDK ecosystem to enhance developer experience and performance.

• Logging

• REST API ‎

We’re committed to improving usability, flexibility, and performance — and your feedback on VDK 6.4.0 is always welcome.

Versions

Vdk-Service

Samples (C++)

VSDK (C++)

Samples (JAVA)

VSDK (JAVA)

Details