No sound

I have no sound after launching the game, take a look at this,
(edited) this is complete output of the Development console:

Launcher 1.0.10 (through bootstrap 4) started on windows...
Current time is Jul 14, 2013 2:09:22 PM
System.getProperty('os.name') == 'Windows 7'
System.getProperty('os.version') == '6.1'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_21'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'
Loaded 2 profile(s); selected 'Mati Mods'
Trying to log in...
Logging in with access token
Logged in successfully
Delta time to compare resources: 405 ms 
Download job 'Resources' skipped as there are no files to download
Job 'Resources' finished successfully
Getting syncinfo for selected version
Queueing library & version downloads
Download job 'Version & Libraries' started (8 threads, 19 files)
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\1.6.2md.jar for job 'Version & Libraries': Couldn't connect to server (responded with 403) but have local file, assuming it's good
Job 'Version & Libraries' finished successfully
Launching game
Looking for old natives to clean up...
Unpacking natives to C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\1.6.2md-natives-15900549089803
Launching in C:\Users\Mateusz\AppData\Roaming\.minecraft
Running C:\Program Files\Java\jre7\bin\javaw.exe -Xmx1G -Djava.library.path=C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\1.6.2md-natives-15900549089803 -cp C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\1.6.2md.jar net.minecraft.client.main.Main --username xPersi --session token:65f98eb8c76a4c019b4a0f5aa7d06c39:417e915fb8cf4cea89fe4a335eb6e35f --version 1.6.2md --gameDir C:\Users\Mateusz\AppData\Roaming\.minecraft --assetsDir C:\Users\Mateusz\AppData\Roaming\.minecraft\assets
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- (We'll do this automatically later ;D) ----
Client> 2013-07-14 14:09:27 [CLIENT] [INFO] Setting user: xPersi
Client> 2013-07-14 14:09:27 [CLIENT] [INFO] (Session ID is token:65f98eb8c76a4c019b4a0f5aa7d06c39:417e915fb8cf4cea89fe4a335eb6e35f)
Client> 2013-07-14 14:09:27 [CLIENT] [INFO] LWJGL Version: 2.9.0
Client> 2013-07-14 14:09:28 [CLIENT] [INFO] Reloading ResourceManager: Default, Sphax PureBDcraft 128x MC16.zip
Client> 
Client> Starting up SoundSystem...
Client> C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\mods
Client> ModLoader 1.6.2 Initializing...
Client> Initializing LWJGL OpenAL
Client>     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
Client> OpenAL initialized.
Client> Done.
Client> 2013-07-14 14:09:28 [CLIENT] [INFO] Reloading ResourceManager: Default, Sphax PureBDcraft 128x MC16.zip
Client> 
Client> Starting up SoundSystem...
Client> Initializing LWJGL OpenAL
Client>     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
Client> Exception in thread "Thread-8" java.lang.IllegalStateException: Only one OpenAL context may be instantiated at any one time.
Client> 	at org.lwjgl.openal.AL.create(AL.java:113)
Client> 	at org.lwjgl.openal.AL.create(AL.java:102)
Client> 	at org.lwjgl.openal.AL.create(AL.java:201)
Client> 	at paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
Client> 	at paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
Client> 	at paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
Client> 	at paulscode.sound.CommandThread.run(CommandThread.java:121)
Client>     ERROR MESSAGE:
Client>         SoundSystem did not load after 30 seconds.
Client> 
Client> Starting up SoundSystem...
Client> Switching to No Sound
Client>     (Silent Mode)
Client> 
Client> 
Client> 2013-07-14 14:10:12 [CLIENT] [INFO] Connecting to s6.mcserwery.pl, 25708
Client> 2013-07-14 14:10:12 [CLIENT] [SEVERE] Reached end of stream for s6.mcserwery.pl/5.9.137.52
Client> 2013-07-14 14:10:45 [CLIENT] [INFO] Connecting to s6.mcserwery.pl, 25708
Client> Setting up custom skins
Client> 2013-07-14 14:10:47 [CLIENT] [INFO] [CHAT] xPersi joined the game.
Client> 2013-07-14 14:11:20 [CLIENT] [SEVERE] Reached end of stream for s6.mcserwery.pl/5.9.137.52
Client> 2013-07-14 14:11:21 [CLIENT] [INFO] Stopping!
Client> 
Client> SoundSystem shutting down...
Client>     Author: Paul Lamb, www.paulscode.com
Client> 
Game ended with no troubles detected (exit code 0)
Deleting C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\1.6.2md-natives-15900549089803
Couldn't delete C:\Users\Mateusz\AppData\Roaming\.minecraft\versions\1.6.2md\1.6.2md-natives-15900549089803 - scheduling for deletion upon exit