TrueGrowth/openspec/changes/archive/2026-04-29-update-audio-playback-speed-control/specs/canvas-audio-playback/spec.md

MODIFIED Requirements

Requirement: Shared playback modes for audio players

The system SHALL provide shared playback controls for the global floating audio player and the music player tool.

Scenario: Switch playback speed from the floating player

• GIVEN an audio or reading queue is active
• WHEN the user changes playback speed from the floating player dropdown
• THEN the system SHALL update the shared playback speed state
• AND the music player tool SHALL reflect the same selected speed

Scenario: Switch playback speed from the music player tool

• GIVEN an audio or reading queue is active
• WHEN the user changes playback speed from the music player tool dropdown
• THEN the system SHALL update the shared playback speed state
• AND the floating player SHALL reflect the same selected speed

Scenario: Sync reading speed with TTS settings

• GIVEN the active queue is a reading queue
• WHEN the user changes playback speed from either player entry
• THEN the system SHALL update the current reading playback speed
• AND SHALL sync the same value to tts.rate

Scenario: Reflect external TTS speed changes during reading

• GIVEN a reading queue is active
• WHEN tts.rate changes from the settings panel
• THEN the shared reading playback speed SHALL update
• AND both player entries SHALL reflect the latest reading speed