SMOODEV-2668: Fix browser-voice TTS static (frame alignment + proper resampling)#37
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…ate resampling, drain priming The wire is one continuous 16 kHz linear16 byte stream but frames split at arbitrary TCP boundaries: an odd-length frame threw on the Int16Array view (chunk dropped) and left every following frame decoding one byte off — loud white noise until parity restored. Carry the dangling byte across frames. Also stop forcing a 16 kHz AudioContext: the browser's context→hardware resampling mirrored speech energy above 8 kHz (imaging static). Run the context at its native rate and upsample with a stateful windowed-sinc interpolator that is seamless across chunk boundaries. Prime playback 100 ms off the playhead when the queue has drained so just-in-time chunks don't butt the playhead and click. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Tz7j9eqPBBL36CEFZpjoWz
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Problem
The Chakra Transformation Posture voice pilot plays TTS with heavy static. Spectral analysis of a session recording showed three artifact classes:
new Int16Array(chunk)(dropped → gap) and left every subsequent frame decoding one byte off (high/low bytes of adjacent samples paired) until parity restored.AudioContext({sampleRate: 16000})leaves the 16k→hardware conversion to the browser's output resampler, which images.Solution
Server-side counterpart (even-byte frame alignment at the source + suggestedNextActions JSON strip) lands in the monorepo under the same ticket.
Verification
pnpm checkgreen (typecheck + test + build).🤖 Generated with Claude Code
https://claude.ai/code/session_01Tz7j9eqPBBL36CEFZpjoWz