asound.conf /etc/asound.conf これはdefault ではないので作ります $ sudo touch /etc/asound.conf pcm.!default { type hw card 0 } ctl.!default { type hw card 0 $ /boot/firmware/config.txt の内容 ーー 　# For more options and information see # http://rptl.io/configtxt # Some settings may impact device functionality. See link above for details # Uncomment some or all of these to enable the optional hardware interfaces enable i2s dtparam=i2c_arm=on dtparam=i2s=on dtparam=spi=on #hdmi_drive=2 # Enable audio (loads snd_bcm2835) #dtparam=audio=on # Additional overlays and parameters are documented # /boot/firmware/overlays/README # Additional overlays and parameters are documented /boot/overlays/README #turn wifi and bluetooth off #dtoverlay=pi3-disable-wifi #dtoverlay=pi3-disable-bt # Automatically load overlays for detected cameras #camera_auto_detect=1 # Automatically load overlays for detected DSI displays #display_auto_detect=1 # Automatically load initramfs files, if found #auto_initramfs=1 # Enable DRM VC4 V3D driver #dtoverlay=vc4-kms-v3d max_framebuffers=2 ---------------------------------------------------------------- # Don't have the firmware create an initial video= setting in cmdline.txt. # Use the kernel's default instead. disable_fw_kms_setup=1 # Run in 64-bit mode arm_64bit=1 # Disable compensation for displays with overscan disable_overscan=1 # Run as fast as firmware / board allows arm_boost=1 [cm4] # Enable host mode on the 2711 built-in XHCI USB controller. # This line should be removed if the legacy DWC2 controller is required # (e.g. for USB device mode) or if USB support is not required. #otg_mode=1 [cm5] #dtoverlay=dwc2,dr_mode=host [all] dtoverlay=hifiberry-dac,slave=true dtoverlay=hifiberry-digi,slave=true initramfs initrd.img-4.19.97-v7+-overlay ------------------------------------------------------------------------- /etc/mpd.conf /////////////////////////////////////////////// music_directory "/var/lib/mpd/music" playlist_directory "/var/lib/mpd/playlists" db_file "/var/lib/mpd/database" #log_file "/var/log/mpd/mpd.log" #pid_file "/var/run/mpd/pid" #state_file "/mnt/dietpi_userdata/.mpd_cache/state" #sticker_file "/mnt/dietpi_userdata/.mpd_cache/sticker.sql" #user "mpd" #Set via service to allow for mpd user to use assigned groups "audio" and "dietpi" #group "dietpi" #Set via service to allow for mpd user to use assigned groups "audio" and "dietpi" user "mpd" group "audio" bind_to_address "0.0.0.0" port "6600" log_level "default" #gapless_mp3_playback "yes" # save_absolute_paths_in_playlists "no" metadata_to_use "artist,album,title,track,name,genre,date" #auto_update "yes" #auto_update_depth "3" follow_outside_symlinks "yes" follow_inside_symlinks "yes" zeroconf_enabled "yes" zeroconf_name "raspberrypi" #password "password@read,add,control,admin" #default_permissions "read,add,control,admin" input { plugin "curl" #proxy "proxy.isp.com:8080" #proxy_user "user" #proxy_password "password" } connection_timeout "30" max_connections "20" max_playlist_length "81920" max_command_list_size "81920" max_output_buffer_size "81920" audio_buffer_size "4096" filesystem_charset "UTF-8" #audio_output_format "44100:16:2" #id3v1_encoding "UTF-8" #Audio Output / Processing #Disabled to allow native DSD output # replaygain "track" # replaygain_preamp "8" volume_normalization "yes" #buffer_before_play "10%" filter { plugin "volume" name "software volume" } ####################################################################### #resampler { # plugin "soxr" # quality "very high" # threads "0" resampler { plugin "soxr" quality "custom" precision "16" phase_response "50" passband_end "91.3" stopband_begin "100" attenuation "0" flags "0" } ####################################################################### playlist_plugin { name "m3u" enabled "true" } ######################################################################## decoder { plugin "wildmidi" enabled "no" } decoder { plugin "ffmpeg" enabled "yes" } input { plugin "curl" } ###################################################################### # audio_output { # type "alsa" # name "SPDIF" # device "hw:SPDIF,0" # mixer_type "software" # dop "yes" # audio_output_format "44100:16:2" #} #audio_output { #type "alsa" #name "DIY PCM5102a" #device "hw:Pcm5102a,0" #mixer_type "software" #format "*:32:2" #replay_gain_handler "software" #dop "yes" #} audio_output { type "alsa" name "Hifiberry-dig" device "hw:0,0" mixer_type "software" dop "yes" format "44100:16:2" } /////////////////////////////////////// /usr/lib/systemd/system/mpd.service １０行目あたりにある 　 　ExecStart=/usr/bin/mpd --systemd $MPDCONF /etc/mpd.conf 　最後に　/etc/mpd.conf を追加する /////////////////////////////////////// 後は、ｍｐｄをリスタートするとか　enable にするとか 　は一般的な確認です。 ////////////////////////////////////// systemctl status mpd ///// mpd の状態を確認します。 　systemctl restart mpd ////// mpd のリスタートです。これでreboot しなくても済ます。 　一度　reboot したほうが良いかもしれません。 　Hostの名前を変更するには　/etc/hosts //////Hostmname を変更します。 /etc/hosts の中の名称も同じにした方が良いかもしれません、 　これで音が出ます、正しこれは　SPDIF の場合です。ドーターボードは Hifiberry-digi の基板です。 　Justboom のdigi 基板の場合も同じです。この基板は　I２S　と　I2Cを使います。 　その設定は　config.txt の内容を変更して下さい。