AudioMixer VTS HLD review points

[hari22yuva]

1. Define Audio Mixer Validation Metrics

Issue: No objective metrics currently exist to validate mixer output quality, underflows, drops, or processing behaviour.

Discussion from meeting:

Suggested adding underflow events, data counts, and output metrics.

2. Clarify Mute/Unmute Behaviour

Issue: Mixer mute semantics are unclear.

Open Questions

Does mute stop audio output?
Does mute continue outputting silence?
What should continuous audio mode behaviour be?

3. Define HDMI or any input source Disconnect/Hotplug Behaviour when it removed form audio mixer

Issue: Behaviour when HDMI or any input source and output is disconnected is currently undefined.

4. Clarify Application Audio Source Model

Issue: Significant confusion around "Application Audio" support.

Discussion

could not identify a concrete Polaris entity for application audio
No clear interface exists for application audio input.
Define System Audio vs Application Audio

Relationship between:

• Application Audio
• System Audio
• TTS