VDK Runtime 6.2.0 - 14th April 2026
Summary
We’re excited to announce the release of VDK Runtime 6.2.0, introducing Voice Recognition User Words — a powerful new capability that lets you add custom, user-provided audio samples and associate them with specific words or phrases to be recognized.
This release also introduces Session Routes, a new set of endpoints that give you more control over how you create, manage, and interact with audio processing sessions and their pipelines.
What's New in VDK Runtime 6.2.0?
Voice Recognition User Words
With this feature, applications can capture a user saying anything and link that recording to a target word, enabling highly personalized and accurate voice recognition for names, jargon, acronyms, or domain-specific terms. Voice Recognition User Words improves recognition accuracy in challenging or customized scenarios, all without requiring changes to existing application code.
Session Routes
With the introduction of Session Routes, applications can now create, configure, and manage audio processing sessions more efficiently through dedicated API endpoints.
This feature allows developers to define session configurations upfront — including pipelines, producers, modifiers, and consumers — and control when those pipelines are actually initialized and executed.
Session Routes make it easier to:
Create and organize sessions as logical containers for pipelines
Load and start pipelines only when needed
Manage real-time communication through session-based WebSocket connections
Control the full lifecycle of audio workflows, from creation to deletion
By separating configuration from execution, Session Routes provide greater flexibility, improved resource management, and a more structured way to build complex audio processing systems.
Learn More
Additional updates and refinements have been made across the VDK ecosystem to enhance developer experience and performance.
We’re committed to improving usability, flexibility, and performance — and your feedback on VDK 6.2.0 is always welcome.
Versions
Vdk-Service
Component | Version |
|---|---|
Vdk-Service | 2.0.3 UPDATED |
Samples (C++)
Component | Package name | Version | Technologies |
|---|---|---|---|
Chained grammars | chained-grammars | 7.0.0 UPDATED | VOICE RECOGNITION (GRAMMAR) |
Dynamic grammar | dynamic-grammar | 7.0.0 UPDATED | VOICE RECOGNITION (GRAMMAR) |
Simple application | simple-application | 7.0.0 UPDATED | VOICE RECOGNITION (GRAMMAR) VOICE SYNTHESIS |
Tts | tts | 7.0.0 UPDATED | VOICE SYNTHESIS |
Voice biometrics | voice-biometrics | 7.0.0 UPDATED | VOICE BIOMETRICS |
Voice Commands Language Understanding | voice-commands-language-understanding | 4.0.0 UPDATED | VOICE RECOGNITION (CONTINUOUS) |
Speech Enhancement | speech-enhancement | 3.0.0 UPDATED | VOICE RECOGNITION (GRAMMAR) SPEECH ENHANCEMENT |
VSDK (C++)
Component | Version |
|---|---|
Vsdk | 11.0.1 UPDATED |
Vsdk-csdk-asr | 2.0.1 UPDATED |
Vsdk-vec-addon | 2.0.1 UPDATED |
Vsdk-csdk-tts | 2.0.1 UPDATED |
Vsdk-idvoice | 6.0.1 UPDATED |
Vsdk-tssv | 5.0.1 UPDATED |
Vsdk-vnlu | 4.0.1 UPDATED |
Vsdk-s2c | 3.0.1 UPDATED |
Vsdk-audio-portaudio | 5.0.1 UPDATED |
Samples (JAVA)
Component | Package name | Version | Technologies |
|---|---|---|---|
Chained grammars | chained-grammars | 7.3.0 UPDATED | VOICE RECOGNITION (GRAMMAR) |
Dynamic grammar | dynamic-grammar | 6.3.0 UPDATED | VOICE RECOGNITION (GRAMMAR) |
Free speech | free-speech | 4.0.0 | VOICE RECOGNITION (CONTINUOUS) |
Simple application | simple-application | 6.3.0 UPDATED | VOICE RECOGNITION (GRAMMAR) VOICE SYNTHESIS |
Tts | tts | 7.3.0 UPDATED | VOICE SYNTHESIS |
Voice biometrics | voice-biometrics | 4.2.0 UPDATED | VOICE BIOMETRICS |
Voice Commands Language Understanding | voice-commands-language-understanding | 1.0.1 | VOICE RECOGNITION (CONTINUOUS) |
Speech Enhancement | speech-enhancement | 3.3.0 UPDATED | VOICE RECOGNITION (GRAMMAR) SPEECH ENHANCEMENT |
Vdk service | vdk-android-sample-service | 1.0.0 |
VSDK (JAVA)
Component | Version |
|---|---|
Vsdk | 7.3.0 UPDATED |
Vsdk-csdk-asr | 4.0.0 UPDATED |
Vsdk-vec-addon | 2.0.0 UPDATED |
Vsdk-csdk-tts | 4.0.0 UPDATED |
Vsdk-idvoice | 4.3.0 UPDATED |
Vsdk-tssv | 4.3.0 UPDATED |
Vsdk-vnlu | 1.1.0 |
Vsdk-s2c | 4.0.0 UPDATED |