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#Step2:
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uname -r #make a note of this - you’ll need 4.1.17 or 4.1.18 
sudo raspi-config #optional - expands the drive space on the sd card
sudo mkdir ~/downloads #optional - makes a directory to keep your downloads handy
sudo mkdir ~/music #optional - makes a directory to put your tunes, brah
sudo reboot
sudo apt-get update
#Step2.5
sudo apt-get install alsa-base alsa-utils alsa-tools libasound2-plugins
sudo apt-get install ecasound
sudo apt-get install ladspa-sdk
#Mount your USB drive somewhere handy 
sudo mkdir /media/usbstick #only needed if your music is on a USB stick
sudo mount -t vfat /dev/sda1 /media/usbstick/ #you’ll need to do this after each reboot, we’ll make it auto load later
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#Step3
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wget https://github.com/jrubinstein/raspiDSP/blob/master/jruby-8-channel-kernel.tar.gz ~/downloads 
cd ~/downloads
tar -xvzf jruby-8-channel-kernel.tar.gz
#make a note of the kernels here:
ls /lib/modules/ 
sudo rm -r /lib/modules/4.1.17-v7+/kernel/sound/   #kernel version “4.1.17-v7+” must match your kernel version!! 
sudo rm -r /lib/modules/4.1.17+/kernel/sound/   #kernel version “4.1.17+” must match your kernel version!! replace this if that doesn't
sudo cp -r ~/downloads/jruby-8-channel-kernel/sound/ /lib/modules/4.1.17+/kernel/
sudo cp -r ~/downloads/jruby-8-channel-kernel/sound/sound/ /lib/modules/4.1.17+/kernel/
sudo reboot
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#Step4
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wget http://faculty.tru.ca/rtaylor/rt-plugins/chan_labels_6.wav ~/downloads
cd ~/downloads
aplay -L
#play a sound file you just downloaded
ecasound -z:mixmode,sum  -a:all -tl -i home/pi/downloads/chan_labels_6.wav  
-a:woofer -efl:300 -efl:300 -chorder:1,0,0,0,0,0,0,1  
-a:woofer -f:16,8,44100 -o:alsahw,0,0 -z:nodb -b:2048
#play a sound on a different channel
ecasound -z:mixmode,sum -a:all -tl -i home/pi/downloads/chan_labels_6.wav 
-a:woofer -efl:300 -efl:300 -chorder:1,0,0,0,0,0,1,0 
-a:woofer -f:16,8,44100 -o:alsahw,0,0 -z:nodb -b:2048
#alternative: use speaker test to loop white noise to the different channels
speaker-test -c 8 -r 48000 -D hw:0,0
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#Step5
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#play some music using ecasound 
#use your own sound file
ecasound -z:mixmode,sum \        
-a:all -i /media/usbstick/04\ -\ South\ Side\ of\ the\ Sky.flac \        
-a:woofer -efl:300 -efl:300 -chorder:1,2,0,0,0,0,0,0 \         
-a:mid -efl:2500 -efl:2500 -efh:300 -efh:300 -chorder:0,0,1,2,0,0,0,0 \        
-a:tweeter -efh:2500 -efh:2500 -chorder:0,0,0,0,0,0,1,2\        
-a:woofer,mid,tweeter -f:16,8,44100 -o:alsahw,0,0 -z:nodb -b:2048
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#Step6
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sudo apt-get install cmt #computer music toolkit
sudo apt-get install swh-plugins #steve harris plugins
wget http://faculty.tru.ca/rtaylor/rt-plugins/index.html ~/downloads #richard taylors plugins for xovers 
wget http://audio.claub.net/software/LADSPA/ACD-plugins-v1.03.tar ~/downloads
cd ~/downloads
tar -xvf ACD-plugins-v1.03.tar
cd ACD-plugins-v1.03
sudo nano MAKEFILE # now go edit the install directory from "/usr/local/lib/ladspa/" to "/usr/lib/ladspa/"
make
sudo make install
tar xfz rt-plugins-0.0.4.tar.gz 
cd rt-plugins-0.0.4
cd build
sudo nano MAKEFILE # now go edit the install directory from "/usr/local/lib/ladspa/" to "/usr/lib/ladspa/"
cmake
sudo make install
#get the modded ~/.asoundrc file
wget https://github.com/jrubinstein/raspiDSP/blob/master/alsa%20configuration%20asoundrc-experimental2.cpp ~/dowloads
sudo nano ~/.asoundrc #paste in the contents of the asoundrc file you downloaded from me, save and exit
alsactl kill rescan #tells alsa to reread the conf file
speaker-test -c2 -D default #just two channels this time because we are now chopping up the sound into h/m/l for left and right channels
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#Step10
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sudo mv ~/.asoundrc ~/.asoundrc-1 #make a quick backup
sudo mv ~/.asoundrc /etc/asound.conf #move to asound.conf to enable for all users
alsactl kill rescan