Compile the ALSA driver of Ubuntu by yourself to achieve better sound quality.

I didn't use speakers to listen to music for a long time. I was going to buy a pair of huiwei M200MK2 over the weekend. I tried CreativeSoundworksSW300, which has been in service for seven years, but found that the T60 sound card has a much worse sound quality than Windows sound, the idea of buying a speaker has to be done for the moment. After searching online for half a day, I found a way to compile an ALSA driver, replace the driver that comes with Ubuntu, and change it to listen to it. There has indeed been a lot of progress, the following are the operation steps: first, get the software package required for compilation for a long time without listening to music using speakers. On weekends, I was going to buy a pair of huiwei M200 MK2. Before that, I tried Creative Soundworks SW300, which has been in service for seven years, however, it was found that the T60 sound card had a much worse sound quality in Ubuntu than in Windows. The idea of purchasing a speaker had to be done for the moment.

After searching online for half a day, I found a way to compile an ALSA driver, replace the driver that comes with Ubuntu, and change it to listen to it. There has indeed been a lot of progress, the procedure is as follows:

First, obtain the required software package for compilation:
Sudo apt-get install build-essential ncurses-dev gettext

Then
Sudo apt-get install linux-headers-'uname-R'

Before compilation and replacement, you must stop the current ALSA service:
Sudo/etc/init. d/alsa-utils stop
Sudo/etc/init. d/alsasound stop

Create a directory to compile the alsa driver
Mkdir alsa-src
Cd alsa-src

Then download
Wget ftp://ftp.alsa-project.org/pub/d... r-1.0.14rc3.tar.bz2
Wget ftp://ftp.alsa-project.org/pub/lib/alsa-lib-1.0.14rc3.tar.bz2
Wget ftp://ftp.alsa-project.org/pub/utils/alsa-utils-1.0.14rc2.tar.bz2

Unpack
Tar xvjf alsa-driver-1.0.14rc3.tar.bz2
Tar xvjf alsa-lib-1.0.14rc3.tar.bz2
Tar xvjf alsa-utils-1.0.14rc2.tar.bz2

Download the corresponding patch file before compilation.
Wget http://lenovo.dropshock.com/files/realtek6.tar.gz

Replace source files with patch files
Tar xvzf realtek6.tar.gz
Cp patch_realtek.c ~ /Alsa-src/alsa-driver-1.0.14rc3/alsa-kernel/pci/hda/

Compile now
Cd alsa-driver-1.0.14rc3
./Configure -- with-cards = hda-intel
Make
Sudo make install

Cd./alsa-lib-1.0.14rc3
./Configure
Sudo make install

Cd./alsa-utils-1.0.14rc2
./Configure
Sudo make install

Well, the compilation is complete, and the rest is to replace the original alsa driver.

Sudo modprobe-r snd-hda-intel & sudo modprobe snd-hda-intel

Restart alsa
Sudo/etc/init. d/alsa-utils restart
Sudo/etc/init. d/alsasound restart

Restart Ubuntu and you may find a red cross on the volume icon. You need to cancel the PCM mute on the volume control interface. Listen again, and the sound quality is quite good.