Support speech speed in server and TTS model interfaces - #616
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Clean merge of PR #36: speech speed across server and TTS models (0xShug0#616). kokoro_tts declares a spec-level "speed" request option (default 1.0, implemented in the misaki phoneme frontend); supertonic accepts "speed" with "speaking_rate" as alias plus the StyleCondition field; the server maps body speed/speaking_rate onto whichever the model's contract declares. No fork files touched. CAPI note: this fork's audiocpp_tts already forwards every JSON key into TaskRequest.options (apply_options), so {"speed": 1.5} works for kokoro/supertonic through the existing options_json passthrough — no CAPI change needed. fork_regression 11/11, loader sync ok. Generated-by: zcode
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Fixes #611
Summary
speedandspeaking_ratein/v1/audio/speechto models that support speed control.speedas Kokoro's canonical request option while retaining the existing voice-style and legacy alias paths.speedlisted as the primary public option.speed. No UI changes.Validation
speed=2andspeaking_rate=2produced byte-identical WAVs.