Audio

.sound events by hand, looping, 3D positional resolution.

guides

Proximity voice chat: the built-in Sandbox.Voice component

The complete method for wiring s&box's built-in Voice component into a networked game (push-to-talk, 3D positional playback, custom falloff curves, speaking indicators, and lip-sync), with no third-party voice SDK.

Vehicle audio -- engine loops, RPM crossfade, slip SFX

The method for vehicle engine audio that doesn't screech: two-layer RPM crossfade with narrow pitch bands, code-side looping, slip-driven skid feedback, and the persistent ConVar trap that ate two listen tests.

✓ 26.07.22

"An unbaked sound-mixer slot resolves to null and plays nothing, silently"

A custom sound-mixer slot with no baked pick and no fallback event resolves to null and plays nothing, with zero log lines anywhere. A fully wired audio call stack can be completely mute behind a clean console. When sound is missing and the console is silent, check whether the mix was actually baked for that slot before blaming the caller.

audiomixer

✓ 26.07.08e

"Authoring s&box .sound events by hand"

MP3 + JSON .sound beside it: no wav/ffmpeg; Distance is in inches; copy schema from addons/menu box_open.sound.

audiosound

✓ 26.07.22

"My custom sound event won't play"

Play full path WITH .sound or bare filename only: partial paths like impact/boing never resolve; compiled assets can still be invisible mid-session.

audiosound

✓ 26.07.15a

"Push-to-talk silently dead: Voice action missing from Input.config"

The Sandbox.Voice component defaults PushToTalkInput to 'voice', but not every project ships a matching 'Voice' InputAction. PTT is a dead key with zero errors until you add it to Input.config.

audiovoice

✓ 26.07.22

"s&box has no project-authorable mixer bus system"

Engine 26.07.22 ships no .mixer resource type, so a project cannot author mixer buses as assets. Only Master, Default, and Voice exist, and the Mixer constructor is assembly-internal. Route category volume in code at play time through Sound.Play(string, Mixer) and SoundHandle.TargetMixer. Call Mixer.FindMixerByName first so the project picks up real buses if the engine ever ships authoring.

mixersound

✓ 26.07.08e

"Sound.Play() is fully static: no component wiring needed"

Sound playback is a static call, not a component. Use Sound.Play() for 2D and Sound.Play(pos) for 3D, and handle missing events gracefully.

sound

✓ 26.07.08e

"There's no Looping field on SoundEvent"

SoundEvent has no Looping property: loop via compiled vsnd import options, or re-trigger from code when SoundHandle finishes.

audiosound