Audio picker: always expose raw USB audio path for car-dash compatibility#80
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Stop deduping the UsbManager-discovered USB audio entry against AudioManager's listing. On automotive Android skins (car-dash head units) the AudioManager-listed entry routes via AudioRecord + setPreferredDevice(), which the in-car audio policy silently overrides back to the built-in mic — so the waterfall keeps showing cabin noise no matter what the user picks. The raw USB path opens the interface directly via UsbManager and bypasses that policy entirely. Both entries are now shown side-by-side; the raw one is labeled "(USB direct)" so users on broken HALs know which to pick. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
AudioRecord+setPreferredDevice(), which the in-car audio policy silently overrides back to the built-in mic. The waterfall keeps showing cabin noise no matter what device the user picks.UsbAudioDevice) that opens the interface directly viaUsbManagerand bypasses Android's audio policy entirely. It was being hidden whenever AudioManager also listed the same device.AudioDeviceSpinnerAdapter.refreshDevices()so both entries appear, and labels the raw one(USB direct)so users on broken HALs know which to pick.Test plan
(USB Audio)and(USB direct)entries now appear for the connected radio; existing AudioManager-routed path still works.(USB direct)entry in Settings → Audio Input, confirm waterfall shows RF instead of cabin mic.🤖 Generated with Claude Code