`Entity:EmitSound` pitch and volume cannot be changed with soundscripts that define it

[sevmonster]

Details

If this is intentional, the wiki should be updated to add this info for these two parameters as well.

Steps to reproduce

For example, these work:

local volume, pitch = 0.5, 150
EmitSound("Wood.StepLeft", Entity(1):GetPos(), Entity(1):EntIndex(), nil, volume, nil, nil, pitch)
Entity(1):EmitSound("player/footsteps/wood1.wav", nil, pitch, volume)

But this doesn't:

local volume, pitch = 0.5, 150
Entity(1):EmitSound("Wood.StepLeft", nil, pitch, volume)

Test:

lua_run hook.Add("EntityEmitSound", "test", PrintTable)
lua_run local volume, pitch = 0.5, 150 Entity(1):EmitSound("Wood.StepLeft", nil, pitch, volume)

["Ambient"]	=	false
["Channel"]	=	0
["DSP"]	=	0
["Entity"]	=	Player [1][sev]
["Flags"]	=	0
["OriginalSoundName"]	=	Wood.StepLeft
["Pitch"]	=	100
["SoundLevel"]	=	75
["SoundName"]	=	player/footsteps/wood3.wav
["SoundTime"]	=	0
["Volume"]	=	1

Version of the game

] version
Protocol version 24
Network version 2025.03.26 (garrysmod)
Exe build: 16:44:26 Feb  4 2026 (9951) (4000)
GMod version 2026.02.06, branch: x86-64, multicore: 1
Linux 64bit

Beta

x86-64 beta

[robotboy655]

IIRC this is intentional.

As mentioned in your request (Facepunch/garrysmod-requests#3114) you can use sound.GetProperties to get the properties of a soundscript (such as the sound files) and run EmitSound with desired pitch/volume settings.

[robotboy655]

This achieves what you want to achieve.

Entity(1):EmitSound("Wood.StepLeft", nil, 200, 1, nil, SND_CHANGE_PITCH )

https://wiki.facepunch.com/gmod/Enums/SND

Edit: The only thing to note there is that this will disable closed captions for this sound.

[sevmonster]

IIRC this is intentional.

Yep, I thought so, it just isn't listed on the wiki. I've gone ahead and updated the wiki to reflect this functionality.

This achieves what you want to achieve.

Entity(1):EmitSound("Wood.StepLeft", nil, 200, 1, nil, SND_CHANGE_PITCH )

https://wiki.facepunch.com/gmod/Enums/SND

Edit: The only thing to note there is that this will disable closed captions for this sound.

I thought those flags were for changing the properties of already playing sounds? That's what they were doing when I was playing multiple overlapping sounds with CHAN_AUTO. I can test later, I could be hallucinating again.

Edit: I was correct. That flag does not work if you are playing the sound multiple times, it will update the currently playing sound instead. Example:

lua_run_cl hook.Add("Tick", "test", function() Entity(1):EmitSound("Wood.StepLeft", nil, 20 + math.random() * 100, 1, CHAN_AUTO, SND_CHANGE_PITCH ) end)

I already knew about this but I never did update the wiki to mention it, so I'll do that as well.