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Persist the exploration, proposal, spec, design, tasks, and verify/archive reports produced during the multi-device EQ, alarm-countdown, and notification-visual-polish SDD cycles.
42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
# Spec: Multi-Device Equalizer
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## New Capability: audio-device-detection
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### Purpose
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Platform channel bridge that enumerates current audio output devices and streams change events to Dart. Enables the rest of the system to react to device connect/disconnect without polling.
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### Requirements
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#### Requirement: Device enumeration on demand
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The system MUST expose a synchronous query that returns the list of currently connected audio output devices as a typed list of device IDs.
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##### Scenario: enumerate at startup — Android
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- GIVEN the feature toggle is enabled
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- WHEN `ServicioDispositivoAudio.dispositivosActuales()` is called on Android
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- THEN it MUST return a list where each entry has a stable `deviceId` string
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- AND built-in speaker MUST appear as `"builtin_speaker"`
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- AND BT A2DP devices MUST appear as `"bt_a2dp:<MAC>"`
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- AND USB audio MUST appear as `"usb_headset:<address>"`
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- AND wired headset MUST appear as `"wired_headset"`
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##### Scenario: enumerate at startup — iOS
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- GIVEN the feature toggle is enabled
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- WHEN `ServicioDispositivoAudio.dispositivosActuales()` is called on iOS
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- THEN it MUST return at least the active route output
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- AND the `deviceId` MUST be stable within the session using `portType+uid`
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- AND calling it again before a route change MUST return the same IDs
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##### Scenario: enumerate when toggle is disabled
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- GIVEN the feature toggle is disabled
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- WHEN any method of `ServicioDispositivoAudio` is called
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- THEN it MUST return an empty list and an empty stream without errors
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---
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(See Engram observation #2186 for complete spec with all 27 requirement scenarios)
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