enable pre-wake-vad by default

[JarbasAl]

related PRs

• prewake vad ovos-blogs#24
• Add pre-wakeword VAD state for reduced false activations ovos-dinkum-listener#189
• feat: Hotword verifier ovos-dinkum-listener#191
• feat: ww verifier ovos-plugin-manager#341
• feat: ww verifier ovos-vad-plugin-silero#16

Summary by CodeRabbit

Release Notes

• New Features
  • Added optional double-check verification for wake-word activations with configurable thresholds to enhance recognition accuracy.
  • Integrated voice activity detection (VAD) pre-check, ensuring wake-word detection only triggers when speech activity is detected.
  • New configuration options available to customize wake-word verification behavior and sensitivity settings.

[coderabbitai]

Walkthrough

Configuration file updated to add wake-word verification settings and a VAD pre-wake check flag. A new "ww_verifiers" section introduces optional verification logic using "ovos-ww-verifier-silero" with configurable thresholds, while "vad_pre_wake_enabled" ties wake-word checks to VAD activity detection.

Changes

Cohort / File(s)	Summary
Configuration updates ovos_config/mycroft.conf	Added "ww_verifiers" section with "ovos-ww-verifier-silero" verifier configuration (threshold and enabled flag set to false). Added "vad_pre_wake_enabled" flag (set to true). Removed placeholder comment about VAD speech-end detection.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Configuration-only changes with no code logic modifications
• Changes are additive and straightforward flag/setting declarations
• No interdependencies or complex logic introduced

Poem

🐰 A config fix, light and clean,
Wake-words verified, calm and keen,
With VAD's gentle listening ear,
False alarms just disappear! ✨

Pre-merge checks and finishing touches

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'enable pre-wake-vad by default' accurately reflects the main change: introducing vad_pre_wake_enabled flag set to true in the configuration.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch prewakevad

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 68f4075 and ce29d1c.

📒 Files selected for processing (1)

• ovos_config/mycroft.conf (1 hunks)

🔇 Additional comments (2)

ovos_config/mycroft.conf (2)

432-440: LGTM - Wake word verifier infrastructure with clear rationale.

The wake word verifier configuration is well-structured with an appropriate comment explaining why it's disabled by default when vad_pre_wake_enabled is true. The disabled state avoids redundant verification layers while preserving the configuration for users who may want different setups.

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442-444: Config addition is appropriate but clearly document this as a breaking change.

This is a configuration-only package; the actual vad_pre_wake_enabled feature implementation exists downstream in ovos-core. The VAD fallback behavior is already documented in the config (lines 476-486): if a VAD plugin is unavailable, it falls back to RATIO_ONLY.

However, enabling this by default is a behavioral change that affects existing installations. Ensure:

1. Release notes clearly document this default behavior change and its implications
2. Users understand that this gates wake-word detection behind VAD speech detection
3. Downstream testing in ovos-core validates false negative rates and VAD plugin fallback chains

The configuration is well-documented; focus on communicating the breaking change to users.

Likely an incorrect or invalid review comment.

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