hailin e706a4cdc7 fix: enable simultaneous playback + recording in voice call ... Root cause: PcmPlayer called openPlayer() without audio session config, so Android defaulted to earpiece-only mode. When the mic was actively recording, playback was silently suppressed — the agent's TTS audio was sent successfully over WebSocket but never reached the speaker. Changes: 1. PcmPlayer (pcm_player.dart): - Added audio_session package for proper audio session management - Configure AudioSession with playAndRecord category so mic + speaker work simultaneously - Set voiceCommunication usage to enable Android hardware AEC (echo cancellation) — prevents feedback loops when speaker is active - defaultToSpeaker routes output to loudspeaker instead of earpiece - Restored setSpeakerOn() method stub (used by UI toggle) 2. AgentCallPage (agent_call_page.dart): - Fixed fire-and-forget bug: _pcmPlayer.feed() returns Future but was called without await, causing interleaved feedUint8FromStream calls - Added _feedChain serializer to guarantee sequential audio feeding 3. Dependencies: - Added audio_session package to pubspec.yaml Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>		2026-02-25 06:48:16 -08:00
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agent_call_page.dart	fix: enable simultaneous playback + recording in voice call	2026-02-25 06:48:16 -08:00
voice_test_page.dart	feat: lazy-load local TTS/STT models on first request	2026-02-25 04:38:49 -08:00