Quick answer: Recompute each speaker's gain every frame from the live distance between listener and speaker using a falloff curve, and cut transmission entirely beyond the audible range.
Proximity voice loses all its magic if a far-off player is as loud as someone standing next to you. The cause is computing gain once rather than continuously as positions change. Driving volume from live distance each frame fixes it.
How to fix it
1. Recompute gain from live distance
Each frame, measure the distance between the local listener and each speaker and map it through a falloff curve to set that speaker's volume, instead of latching a value when they start talking.
2. Use a spatializer for direction
Feed speaker positions into a 3D audio panner so voices also come from the right direction, reinforcing the distance cue with stereo placement.
3. Cull beyond audible range
Stop relaying a speaker's packets to listeners outside the max range entirely, saving bandwidth and preventing barely-audible distant chatter from leaking through.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
Ship the fix, watch the signature disappear from the next build. That's how you know it's really gone.