Manjaro.i3.ALSA.Pulse.sh

# =========================================================================
# first some of helpfull functions
# =========================================================================

# -------------------------------------------------------------------------
# to start stop service
# -------------------------------------------------------------------------
systemctl stop mpd
systemctl start mpd
# -------------------------------------------------------------------------
# to kill/restart alsa
# -------------------------------------------------------------------------
alsactl kill rescan
alsactl nrestore
# -------------------------------------------------------------------------
# to start stop pulse
# -------------------------------------------------------------------------
pulseaudio --kill
pulseaudio --start
# -------------------------------------------------------------------------
# too kill and start mpd
# -------------------------------------------------------------------------
mpd --kill
# to satrt
mpd
# -------------------------------------------------------------------------
# check alsa devices
# -------------------------------------------------------------------------
cat /proc/asound/pcm 
# -------------------------------------------------------------------------
# check actual sampling rates
# -------------------------------------------------------------------------
cat /proc/asound/U7/pcm*/sub*/hw_params
# -------------------------------------------------------------------------
# check list of devices
# -------------------------------------------------------------------------
aplay -l
# in my case result is
**** List of PLAYBACK Hardware Devices ****
card 0: U7 [Xonar U7], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
............
# the device name betwee card X: and first bracket [
# so in my case "U7"

# =========================================================================
# now edit asound.conf or ~/.asoundrc
# This file will load when any app load alsalib
# -------------------------------------------------------------------------
# Settings for XonarU7 sound board

pcm.xonarU7 {
  type hw
  card U7
}

ctl.xonarU7 {
  type hw
  card U7
}

# Settings for DMIX for mixing multiple channels
# for sound board which does not support it

pcm.dmixer {
  type dmix
  ipc_key 4455
  slave {
    pcm xonarU7
    rate 192000
    format "S24_3LE" # U7 support S24_3LE
    period_time 0
    period_size 1024
    buffer_size 4096
  }
}

# Settings for default alsa device

pcm.!default {
  type plug
  slave.pcm "dmixer"
}

# Additional stuff from random web page in case
# if dmixer setting are not working as they shoutld

defaults.pcm.dmix.rate 192000
defaults.pcm.dmix.format S24_3LE
# -------------------------------------------------------------------------

# NOTE Another ide is to use automatic conversion plugin
# https://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html

# =========================================================================
# make alsa appliction does not look the device
# chanche /etc/pulse/default.pa
load-module module-alsa-sink device=dmixer

# =========================================================================
# EDIT /etc/mpd.conf
# See: /usr/share/doc/mpd/mpdconf.example
# =========================================================================

# -------------------------------------------------------------------------
# User                                                              

user                    "valery"

# Requred                                                           

db_file                 "~/.config/mpd/database"
log_file                "~/.config/mpd/mpd.log"


# Optional                                                          

music_directory                   "/my-data/mypassport/MUSIC/"
playlist_directory                "~/.config/mpd/playlists"
pid_file                          "~/.config/mpd/pid"
state_file                        "~/.config/mpd/state"
sticker_file                      "~/.config/mpd/sticker"

# Sound Settings                                                    
# This is way to send to pulse and resample there
audio_output {
        type "pulse"
        name "Pulse Audio"
        format           "192000:32:2"
        }

# As alternative 
# There is way send to alsa
audio_output {
        type             "alsa"
        name             "U7 - USB Audio"
#       device           "hw:0,0"                                   
#       auto_resample    "no"                                       
#       auto_format      "no"                                       
#       auto_channels    "no"                                       
        replay_gain_handler "none"
#       mixer_type       "none"                                     
        mixer_type       "software"
        format           "192000:32:2"
}

audio_output {
        type            "fifo"
        name            "my_fifo"
        path            "/tmp/mpd.fifo"
        format          "44100:16:2"
}

# Playlist                                                          

save_absolute_paths_in_playlists  "no"
filesystem_charset    "UTF-8"
id3v1_encoding        "UTF-8"
log_level             "default"
auto_update           "yes"
auto_update_depth     "4096"

# Player                                                            

replaygain                 "off"

# Networking                                                        

port "6600"
bind_to_address "127.0.0.1"
max_connections        "10"
max_playlist_length    "16384"
max_command_list_size  "2048"
max_output_buffer_size "8192"
zeroconf_enabled    "True"
# -------------------------------------------------------------------------

# =========================================================================
# Configure pulseaudio
# -------------------------------------------------------------------------
# ~/.config/pulse/daemon.conf
resample-method = speex-float-1
default-sample-format = s24le
default-sample-rate = 192000
alternate-sample-rate = 48000
default-sample-channels = 2