Voice: add a single-client test bench - #258
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Proximity voice could only be exercised with two players and two microphones, which made the one layer most likely to be misconfigured -- distance attenuation and panning -- the hardest to check. VoiceBench generates a steady tone or noise at a movable world position and VoiceClient submits it as a synthetic speaker, so the mixer can be driven and measured by one client with no microphone and no network. The harness owns only signal generation, the sweep and the wall-clock pacing; VoiceClient contributes the parts that need its private state -- submitting into the sink and appending a placement that its host's per-tick speaker pass cannot retire. Frames are emitted against the wall clock rather than per tick, or the ring starves or overruns at any frame rate but exactly 50fps, and both sound like a spatialisation fault. BenchSampleCurve samples ComputeGain itself rather than reproducing its curve, so a diagnostic plot cannot drift from what is actually mixed.
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WalkthroughAdds a synthetic voice benchmark with tone and noise generation, position sweeps, bounded timing, PCM frame retrieval, attenuation diagnostics, and VoiceClient integration with sink submission and world publication. ChangesVoice benchmark
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🔵 Low · up to The single-client voice bench is broadly mergeable, but it can produce incorrect sweep results, retain a benchmark speaker in a replaced audio sink, or sample incorrect spatial curves for invalid listener directions; these bounded issues should have explicit owner follow-up. Sequence Diagram(s)sequenceDiagram
participant VoiceClient
participant VoiceBench
participant VoiceSink
VoiceClient->>VoiceBench: Advance elapsed time
VoiceBench-->>VoiceClient: Return queued PCM frames
VoiceClient->>VoiceSink: Submit benchmark frames
VoiceClient->>VoiceClient: Publish active synthetic speaker
Suggested reviewers: Poem
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 13.04% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 23 functions across 4 files. (1 skipped: 1 unsupported.) ✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
🧪 Generate unit tests (beta)
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In `@code/framework/src/voice/client/voice_bench.cpp`:
- Around line 90-104: Update the ping-pong handling in Advance() so large
deltaMs values account for every crossed _sweepDurationMs: compute the number of
completed durations, reduce _sweepElapsedMs modulo the duration, and reverse
_sweepFrom/_sweepTo according to that count. Preserve the existing
inactive/completion behavior for non-ping-pong sweeps and calculate _position
from the corrected remaining elapsed time.
In `@code/framework/src/voice/client/voice_client.cpp`:
- Around line 723-726: Update SetSink and shutdown handling to release
kBenchSpeakerId from the current sink before replacing or destroying it, since
UpdateBench submits this speaker directly without adding it to _admitted. Keep
the replacement sink’s benchmark submission in UpdateBench unchanged so the
speaker is re-established on the next update.
- Around line 709-712: Update BenchSampleCurve to validate and normalize
ListenerTransform::forward before using it for sampling, ensuring distances
follow the intended direction and avoiding repeated origin samples for near-zero
vectors. Use an appropriate documented fallback for a near-zero forward vector
while preserving the existing gain-curve calculation.
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code/framework/CMakeLists.txtcode/framework/src/voice/client/voice_bench.cppcode/framework/src/voice/client/voice_bench.hcode/framework/src/voice/client/voice_client.cppcode/framework/src/voice/client/voice_client.h
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AdvanceSweep handled one ping-pong boundary per call, so a tick longer than the sweep duration reversed once instead of once per crossing, and the leftover elapsed time stayed above the duration -- burning a lap per tick and permanently offsetting the phase. Reverse by the number of crossings and reduce the remainder modulo the duration. BenchSampleCurve stepped along ListenerTransform::forward, which is not promised to be unit length; a scaled vector mislabels the plot's x axis and a zero vector samples the origin for every point. Normalize it, with the struct's own default as the degenerate fallback. SetSink also missed the bench when handing speakers back, since it deliberately bypasses _admitted, leaving an outgoing custom sink holding its slot forever.
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Proximity voice could only be exercised with two players and two microphones, which made the one layer most likely to be misconfigured -- distance attenuation and panning -- the hardest to check. VoiceBench generates a steady tone or noise at a movable world position and VoiceClient submits it as a synthetic speaker, so the mixer can be driven and measured by one client with no microphone and no network.
The harness owns only signal generation, the sweep and the wall-clock pacing; VoiceClient contributes the parts that need its private state -- submitting into the sink and appending a placement that its host's per-tick speaker pass cannot retire. Frames are emitted against the wall clock rather than per tick, or the ring starves or overruns at any frame rate but exactly 50fps, and both sound like a spatialisation fault.
BenchSampleCurve samples ComputeGain itself rather than reproducing its curve, so a diagnostic plot cannot drift from what is actually mixed.
Summary by CodeRabbit