Phase 8: replace voice clips with Samantha TTS, fix end click#9
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kiranj26 wants to merge 1 commit intorelease/v2-productfrom
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Phase 8: replace voice clips with Samantha TTS, fix end click#9kiranj26 wants to merge 1 commit intorelease/v2-productfrom
kiranj26 wants to merge 1 commit intorelease/v2-productfrom
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Regenerated sit_up.wav and thank_you_good_work.wav using macOS `say` (Samantha voice, -r 155 WPM) + afconvert to 16kHz 16-bit mono. Previous clips were flat TTS that sounded monotone and low-pitched on the 20mm 8Ω speaker. New recordings are clearer and more natural on the small cone. Added 200ms silence padding to sit_up.wav to eliminate the click caused by i2s_set_clk restoring 44.1kHz before the DMA buffer drains fully. Added gen_wav_arrays.py to regenerate .c arrays from WAV files without manual xxd — run from repo root after updating any WAV file. Phase 8 pass criteria verified on hardware: - Boot tone, cal tones, warning beeps — all clear at 1m - "Sit up straight" intelligible at 1m, clean ending - "Thank you, good work" intelligible at 1m - No distortion, no rattle Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
say -r 155) +afconvertto 16kHz 16-bit mono — previous flat TTS sounded monotone and low-pitched on the 20mm 8Ω speakersit_up.wavto eliminate the click fromi2s_set_clkrestoring 44.1kHz before the DMA buffer drainsgen_wav_arrays.pyto regenerate.carrays from WAV files in one commandPhase 8 pass criteria — verified on hardware
VOL_VOICE 0.90funchangedTo regenerate clips in future
🤖 Generated with Claude Code