FA-49440 / PCM sample encoding / Member archive

Pcm sparse impulses: sample amplitude · case 05

Absolute PCM event values are interpreted as offsets from silence.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Reconstruct a sparse PCM packet into a fixed sample span using explicit silence, ignore out-of-range events and apply duplicate positions in arrival order.

Why this case matters

Offline PCM interchange uses these exact bounded packet and sample representation decisions.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
oracle 1	`[258, 128, 128, 257]`	`[130, 128, 128, 129]`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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