Microphone volume far too low

[Erian]

My mic volume in Dota 2 is so low that most people simply barely hear me ingame, which is quite annoying in a team game. This has been going on for some time without finding any resolution. Maybe someone has an idea...

The problem is only in Dota 2: Skype, TS3 and even the Steam voice chat are working fine.
My windows settings are at 100 (with 0 db mic boost - 10 db would be fine, won't solve the problem though. Everything above will generate an annoying echo).
My steam settings are at 100%.
I'm using an analogue headset (Sennheiser PC 320) with the front side jack of my PC. Switching to the back side (direct into the onboard soundcard) will slightly increase the volume, but not nearly enough.

In the steamapps\common\dota 2 beta\dota\cfg --> config.cfg there is a
voice_mixer_volume "1.0"
so it should be on 100%. However, any changes to the config.cfg seem to have no effect ingame - is that file still used by the Dota 2 client?

I tried working with a autoexec.cfg with those lines as well:

con_enable 1
voice_minimum_gain 125
voice_maxgain 125

No effect. Tried different values (200 and 500), no effect whatsoever.

This issues seems to be around since at least 2014, having multiple reddit threads as well as threads in different online communities dating back that far, while some of them are pretty recent. Some people found their issue fixed with one of the above settings, nothing worked for me though...

I'm out of ideas. Anyone got any different idea?

[safetyF1rst]

Design your own amplifier.

[Erian]

引用自 Infinity：

Design your own amplifier.

Wanna help with that?

[safetyF1rst]

Nope. I just wanted to say that my experience says that this is the only way to make the sound better.

[Red Mage Joe]

snd_voipvolume "10"

There is your solution. Punch that into your console to amplify your voice output to what, based on my hearing, seems to be the maximum (tried 100 and 1000 with exact same volume level). Bear in mind that this is only for very quiet, as it is a 10x amplification (or whatever the maximum amplification is, as demonstrated by 100 and 1000 failing, and I just arbitrarily punched 10 in).

I tested this out myself just now, and you can use the console command "voice_loopback 1" in Demo Hero mode with the push to talk button to test how other people will hear you.

To make this command automatically run with the launch of DotA, simply go to:

C:\Program Files (x86)\Steam\steamapps\common\dota 2 beta\dota\cfg\config.cfg

and find the snd_voipvolume line and set the 1 to 10. Hope this helps. Most other voice-related console commands in there are obsolete, as running them in the console in-game lists them as unknown commands. I had to do extensive testing to find which setting actually worked.