Sound visualizer#54
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Five iOS-lockscreen-style bars under the poster that move on whatever the app actually emits: the radio stream, the loading tone or the error tone. - The signal is tapped via captureStream() + AnalyserNode: unlike the reverted createMediaElementSource approach (69a58f2), playback is NOT rerouted through the AudioContext, so the iOS media session and background playback stay untouched. - All three <audio> elements feed one analyser; per-band peak normalization (AGC) keeps loudness-compressed radio moving on the beat. - The state machine stays the source of truth: applyFx drives data-viz through the new setVisualizer dep (vizModeFor classifier). - Declarative CSS fallback animation when no signal is readable: Safari/iOS + Firefox (no captureStream), data-no-cors stations, AudioContext not yet unlocked, reduced motion. - Streams now load with crossorigin=anonymous (all stations send CORS, verified) except National FM, marked data-no-cors — it plays opaque. - e2e: stream mocks now send CORS headers; user-level visualizer tests (bars still in silence, moving whenever something is audible). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
More frequency resolution so the motion visibly tracks the music: one log-spaced band per bar (computed, at least one bin each), bars generated by visualizer.ts instead of hand-written spans. The strip now spans the full main card width between the logo and the poster; the CSS fallback rhythm patterns repeat across the row via :nth-child(5n+k). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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