sl-jetson
e8b787a987
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Adds volume_adjust_node to saltybot_social:
- Subscribes /social/speech/energy (Float32 linear RMS [0..1] from vad_node)
- Maps energy to TTS volume via:
1. Normalise into [noise_floor, noise_ceil]
2. Power-curve shaping (curve_gamma; <1 concave, 1 linear, >1 convex)
3. Lerp to [min_volume, max_volume]
4. Exponential moving-average smoothing (smoothing_alpha)
- Publishes Float32 on /saltybot/tts_volume at publish_rate Hz (default 5 Hz)
- Holds last value when energy is stale (> stale_timeout_s)
- All params exposed: min/max_volume, noise_floor/ceil, curve_gamma,
smoothing_alpha, publish_rate, stale_timeout_s
- 74/74 tests passing
Closes #289