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fix(multimodal): stabilize downstream audio playback

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- add configurable prebuffer and adaptive rebuffer for packet jitter
- mute stalled output, auto-clear I2S DMA, and abort inactive playback after 3 seconds
- discard stale-generation packets and add optional downstream diagnostics
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chenjintao
2026-08-11 15:25:26 +08:00
parent b60a0373ba
commit 3ce9b38098
5 changed files with 703 additions and 10 deletions
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sdkconfig.defaults
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@@ -171,6 +171,11 @@ CONFIG_MULTIMODAL_AUDIO_AEC_REFERENCE_CHANNEL=1
CONFIG_MULTIMODAL_AUDIO_AEC_FILTER_LENGTH=4
CONFIG_MULTIMODAL_AUDIO_UPLINK_MAX_PACKET_BYTES=1024
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_PLAYBACK_TASK_STACK=12288
# CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_DIAGNOSTICS_ENABLE is not set
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_ACTIVE_STALL_MUTE_MS=3000
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_PREBUFFER_MS=160
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_REBUFFER_GAP_MS=120
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_MAX_REBUFFER_MS=640
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_PLAYBACK_QUEUE_LEN=1024
CONFIG_MULTIMODAL_AUDIO_DOWNSTREAM_PLAYBACK_MAX_PACKET_BYTES=2048
CONFIG_MULTIMODAL_AUDIO_I2S_DMA_DESC_NUM=4