Integrate DigiRadioFinale DSP program: exclusive source mux, real
Bass Boost1/SPhat1 enhancement blocks Replaces the 74-parameter ADAU1701 program with the new 224-parameter SigmaStudio export. The new netlist has no mixer -- MX1 is an exclusive selector (DC1) passing through exactly one of three stereo pairs (radio/bluetooth/beep) instead of blending them with independent gains. core::MixSource/MixerState are gone; core::ActiveSource plus IDsp::selectSource() replace applyMixer()/setInputVolume() throughout the driver/service/API stack. AudioProfile.mixer -> activeSource; the HTTP "mixer" JSON object -> a single "active_source" string. DC1 turned out to need a raw 32-bit integer (0/1/2), not the 5.23 fixpoint its compiled TYPE_DC1 macro implies -- confirmed live by writing both encodings and listening for which one actually switched sources. Documented in Adau1701Driver::selectSource() and adau1701::paramSourceIndex(). Bass Boost1 and SPhat1 are real ADI algorithm blocks in this revision, so core::applyEnhancementsToEq() (the old EQ-band-overwrite hack for bass/stereo enhancement) is deleted; IDsp::setBassBoostLevel()/ setStereoSpreadLevel() scale each block's compiled coefficients toward identity/unity instead. Confirmed live: Bass Boost audible on real program content (not a static test tone -- the algorithm is dynamics- based), Stereo Spread audible but subtle. The EQ "locked" flag from 2026-08-24 (enhancements silently overwriting manually-set bands) no longer applies to bands 1-5. A full sweep of all 223 non-DC1 named parameters (writing each back to its own compiled default) completed with zero failures, confirming the whole new address space is reachable. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Claude Sonnet 5