Fixed-Point First-Order Allpass Spectral Phase Swapper (Q16.16)

Module 126 from the Davis Logic V2 project details a zero-heap, real-time allpass filter for spectral phase inversion in embedded systems. The 3.5 KB text file, authored by Jamie Davis and last updated in May 2026, describes a single-multiplier recursive topology that swaps phase profiles while keeping magnitude flat. Its design guarantees microsecond-range execution and uses hardware-level clamping to prevent overflow.

Use Cases

• Implement anti-phase echo cancellation in acoustic pipelines based on the described allpass phase inversion.
• Perform selective wave dampening in bio-telemetry systems based on the targeted frequency transformation.
• Benchmark low-memory, real-time filter performance based on the described zero-heap, branchless architecture.
• Study fixed-point (Q16.16) implementation of recursive difference equations based on the provided mathematical mapping.

Strengths

• Strictly uses 0 bytes of heap memory, bypassing dynamic allocation.
• Outputs are hardware-clamped between +2147483647 and -2147483648 to neutralize overflow.
• Designed for microsecond-range loop execution speeds with a branchless track.
• Released under the permissive Creative Commons Attribution 4.0 International license.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Jamie Davis (Independent Systems Architect)

Collection Method

Architectural registry manifest for the Davis Logic V2 project.

Time Range

Publication date is 2026-05-31.

Freshness

Last updated 2026-05-31 21:36:27; freshness should be verified.

Geography

null