Handling High-Frequency Audio Buffers
Engineering note from 0cmlabs.
Scope
This placeholder outlines how we evaluate high-frequency buffer paths in Android audio stacks.
- Validate
AudioTrackburst cadence under real device clock drift. - Keep buffer sizes deterministic per route profile.
- Separate DSP-offloaded paths from CPU-mixed fallback paths.
Baseline Checklist
- Capture mixer period and HAL frame geometry.
- Measure underrun rate during thermal and CPU pressure.
- Compare latency deltas across fast and deep buffer outputs.
Example Snippet
size_t burst_frames = 240;
size_t ring_frames = burst_frames * 8;
configure_output_ring(ring_frames);
Current Status
Initial analysis complete; full implementation walkthrough will follow in a later revision.