OK, so here it is, I'm getting the exact same problem when following the guide. I'll post my steps here, after the download.
Code:
francisco@MegalaptopII:~/Desktop$ sudo dpkg -i libasound2_1.0.16-2_amd64.deb 
[sudo] password for francisco: 
(Reading database ... 120383 files and directories currently installed.)
Preparing to replace libasound2 1.0.15-3ubuntu4 (using libasound2_1.0.16-2_amd64.deb) ...
Unpacking replacement libasound2 ...
Setting up libasound2 (1.0.16-2) ...

Processing triggers for libc6 ...
ldconfig deferred processing now taking place
francisco@MegalaptopII:~/Desktop$ sudo dpkg -i libasound2-dev_1.0.16-2_amd64.deb 
(Reading database ... 120382 files and directories currently installed.)
Preparing to replace libasound2-dev 1.0.15-3ubuntu4 (using libasound2-dev_1.0.16-2_amd64.deb) ...
Unpacking replacement libasound2-dev ...
Setting up libasound2-dev (1.0.16-2) ...

francisco@MegalaptopII:~/Desktop$ sudo dpkg -i libasound2-plugins_1.0.16-1_amd64.deb 
(Reading database ... 120376 files and directories currently installed.)
Preparing to replace libasound2-plugins 1.0.15-1ubuntu3 (using libasound2-plugins_1.0.16-1_amd64.deb) ...
Unpacking replacement libasound2-plugins ...
Setting up libasound2-plugins (1.0.16-1) ...
francisco@MegalaptopII:~/Desktop$ sudo apt-get install -f
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages will be REMOVED:
  flashplugin-nonfree ia32-libs lib32asound2 nspluginwrapper teamspeak-client
  wine
0 upgraded, 0 newly installed, 6 to remove and 0 not upgraded.
After this operation, 173MB disk space will be freed.
Do you want to continue [Y/n]?
I just answered "n" and I'm about to do a fallback just like you indicated.
Ideas?