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VoiceHook - Developer preview of something.


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asherkin
SourceMod Developer
Join Date: Aug 2009
Location: OnGameFrame()
Old 12-16-2010 , 09:48   VoiceHook - Developer preview of something.
Reply With Quote #1

This plugin hooks the broadcast of voice chat through the server, decompresses it with Valve's audio codecs, passes it onto other plugins that have registered a listener and then re-compresses the data.

WARNING: For TF2 and other games using the Steam audio system, you need to set the sv_use_steam_voice convar to 0 if you want decompression to work.

The interface is quite simple:
Code:
#define VOICE_INTERFACE "VOICE_INTERFACE_002"

class IVoiceListener
{
public:
	// In raw mode, nSamples = bytes;
	virtual void OnVoiceBroadcast(int client, char *pVoiceData, int *nSamples)
	{
	}
};

class IVoice
{
public:
	virtual void AddVoiceListener(IVoiceListener *pVoiceListener) = 0;
	virtual void RemoveVoiceListener(IVoiceListener *pVoiceListener) = 0;
	
	virtual void AddRawVoiceListener(IVoiceListener *pVoiceListener) = 0;
	virtual void RemoveRawVoiceListener(IVoiceListener *pVoiceListener) = 0;
};
and can be acquired with the following code:
Code:
IVoice *pVoice = (IVoice *)g_SMAPI->MetaFactory(VOICE_INTERFACE, NULL, NULL);
I'm fed up with typing, so have a load of files:
You'll need to copy vaudio_speex.dll from Steam\steamapps\<account name>\<Source 2009 using game name>\bin\ (Linux users can get the Linux one from here) and copy it to orangebox\bin in your server install.

TO-DO List:
  • Further reverse engineer the broadcast function, if it can be completely replaced we'll be able to avoid the terrible voice management functions.
  • Allow interface implementors to block the function.
  • Implement a method to get IServer, so we can broadcast arbitrary audio to clients.
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Last edited by asherkin; 03-23-2013 at 01:32.
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Seta00
The Seta00 user has crashed.
Join Date: Jan 2010
Location: Berlin
Old 12-16-2010 , 10:31   Re: VoiceHook - Developer preview of something.
Reply With Quote #2

Needs moar source code
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berni
SourceMod Plugin Approver
Join Date: May 2007
Location: Austria
Old 12-16-2010 , 11:43   Re: VoiceHook - Developer preview of something.
Reply With Quote #3

Sorry, why would someone change the voicedata in a plugin ?

But it sounds great I always wanted to do this.
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asherkin
SourceMod Developer
Join Date: Aug 2009
Location: OnGameFrame()
Old 12-16-2010 , 12:01   Re: VoiceHook - Developer preview of something.
Reply With Quote #4

Quote:
Originally Posted by berni View Post
Sorry, why would someone change the voicedata in a plugin ?
A few random ideas that have come up from people:
  • Decrease or increase the volume of a client's voice audio.
  • Pitch-shift it or other audio effects.

I really don't know tbh, it was a requested feature .
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FaTony
Veteran Member
Join Date: Aug 2008
Old 12-16-2010 , 22:57   Re: VoiceHook - Developer preview of something.
Reply With Quote #5

Sampling rate? How many bits per sample?
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raydan
Senior Member
Join Date: Aug 2006
Old 12-16-2010 , 22:59   Re: VoiceHook - Developer preview of something.
Reply With Quote #6

use voice audio channel stream mp3?
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asherkin
SourceMod Developer
Join Date: Aug 2009
Location: OnGameFrame()
Old 12-16-2010 , 23:03   Re: VoiceHook - Developer preview of something.
Reply With Quote #7

Quote:
Originally Posted by FaTony View Post
Sampling rate? How many bits per sample?
From voicerecord_ext:
Code:
WAVEFORMATEX g_VoiceSampleFormat =
{
	WAVE_FORMAT_PCM,	// wFormatTag
	1,			// nChannels
	11025,			// nSamplesPerSec
	22050,			// nAvgBytesPerSec
	2,			// nBlockAlign
	16,			// wBitsPerSample
	0			// cbSize
};
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FaTony
Veteran Member
Join Date: Aug 2008
Old 12-16-2010 , 23:08   Re: VoiceHook - Developer preview of something.
Reply With Quote #8

And why no ability to create audio data from scratch? I wanna make my bots talk.
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asherkin
SourceMod Developer
Join Date: Aug 2009
Location: OnGameFrame()
Old 12-16-2010 , 23:27   Re: VoiceHook - Developer preview of something.
Reply With Quote #9

Quote:
Originally Posted by FaTony View Post
And why no ability to create audio data from scratch? I wanna make my bots talk.
Quote:
Originally Posted by asherkin View Post
I'm still working on this heavily
I haven't finished that part yet.
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PAL-18
AlliedModders Donor
Join Date: Jul 2010
Old 12-17-2010 , 16:22   Re: VoiceHook - Developer preview of something.
Reply With Quote #10

Quote:
Originally Posted by asherkin View Post
A few random ideas that have come up from people:
  • Decrease or increase the volume of a client's voice audio.
  • Pitch-shift it or other audio effects.

I really don't know tbh, it was a requested feature .
What about a voice recognition thing where it can pipe the voice to another program and based on what it detects execute server-side commands like ban people for saying the N word.
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