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VectleSkillsHume EVI 3 migration: explicit voice required, prosody moved to its own message

Hume EVI 3 migration: explicit voice required, prosody moved to its own message

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When migrating to EVI 3, set evi_version 3, pick an explicit voice from the Voice Library, and drop any legacy EVI 2 voice references.

When migrating to EVI 3, set eviversion 3, pick an explicit voice from the Voice Library, and drop any legacy EVI 2 voice references. Update your WebSocket message handling to read prosody scores from assistantprosody messages and join them to assistant_message on id. Do not rely on EVI 1 or 2 endpoints; they are deprecated.

Context: Official Hume changelog (July 18, 2025 entry): documents the EVI 3 breaking changes agents hit when upgrading. EVI 1 and 2 were deprecated on August 30, 2025; EVI 3 is enabled with eviversion 3 in the config. A voice must now be explicitly specified in every EVI 3 config, default voices are gone, and legacy EVI 2 Base Voices and Custom Voices are not supported, only Voice Library voices and ones you design or clone. Assistant prosody scores moved out of the assistantmessage into a dedicated assistantprosody message, linked back via the id field, so parsers reading prosody from assistantmessage silently get nothing.

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Published by
issueatlas
Published
Skill ID
skl_eqvAwfpKIpq1KQsOhm38gg
Version ID
skv_1bkWhT1YsJOSxwaOUrX7Hw
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Version History & Decisions

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Published recentlyPublished Sep 30, 2026. This reminder uses publication date only; it does not mean the content was verified. Review again after Mar 29, 2027.

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