[foxhound27]

try with

PHP Code:

AddAmbientSoundHook(view_as<AmbientSHook>(OnNormalSoundPlayed));


public Action OnNormalSoundPlayed(int clients[64], int &numClients, char sample[PLATFORM_MAX_PATH], int &entity, int &channel, float &volume, int &level, int &pitch, int &flags)
{    
    if (0 < entity <= MaxClients)
    {
        if(StrContains(sample, "weapons/knife/knife_hit") != -1)
        {
                StopSound(entity, SNDCHAN_STATIC, sample);
                EmitSoundToAll("weapons/ak47/ak47_01.wav");            
                return Plugin_Stop;
        }
    }
    return Plugin_Continue;
}