[ddhoward]

This is what I used to use, no idea if it still works though.

https://forums.alliedmods.net/showthread.php?p=909778

[Smity]

Its called "Command Subtitles" and you can remove it by using this plugin

https://forums.alliedmods.net/showthread.php?t=161638

[404UserNotFound]

Originally Posted by Smity Its called "Command Subtitles" and you can remove it by using this plugin https://forums.alliedmods.net/showthread.php?t=161638

Wow, I haven't seen that plugin in years.....Don't use it. First off, I made it. Ignore the fact that's a completely different account in that thread from this one (it's a long story), but I made it. And I made it in 2011, when I was first learning SourceMod. It's probably not good.

Edit: Ok so I looked at the source code. I wouldn't say it's baaaaaad. It's...functional, I guess. I could really slim things down.

Edit 2: I made it less bad and updated the syntax;

Spoiler

#include <sourcemod>

#pragma semicolon 1
#pragma newdecls required

public Plugin myinfo = 
{
    name = "No Voice Subtitles Revival",
    author = "404UNF",
    description = "Removes all in-chat messages when using Voice commands.",
    version = "1.1",
    url = "http://www.404UNF.ca"
}

public void OnPluginStart()
{
    HookUserMessage(GetUserMessageId("VoiceSubtitle"), VoiceHook, true); 
}

public Action VoiceHook(UserMsg msg_id, Handle bf, const int[] players, int playersNum, bool reliable, bool init)
{
    int clientid = BfReadByte(bf);
    int voicemenu1 = BfReadByte(bf);
    int voicemenu2 = BfReadByte(bf);
    
    if (IsPlayerAlive(clientid) && IsClientInGame(clientid))
    {    
        if (voicemenu1 == 0)
        {
            switch (voicemenu2)
            {
                case 0, 1, 2, 3, 4, 5, 6, 7: return Plugin_Handled;
            }
        }
        if (voicemenu1 == 1)
        {
            switch (voicemenu2)
            {
                case 0, 1, 2, 6: return Plugin_Handled;
            }
        }
        if((voicemenu1 == 2) && (voicemenu2 == 0)) return Plugin_Handled;
    }
    return Plugin_Continue;
 }

Edit 3: I've started pondering removing the voice menu checks and just flat out returning Plugin_Handled as a viable option.