[PROBLEM] Audio dropouts Moode 9.0.4 on Pi4 + USB DAC + FLAC library

[ptrkln]

Here's the Moode 9.0.4. startup log:

Code:

M O O D E   S T A R T U P   L O G

20240716 162929 worker: --
20240716 162929 worker: -- Start moOde 9 series
20240716 162929 worker: --
20240716 162929 worker: Successfully daemonized
20240716 162929 worker: Wait for Linux startup
20240716 162936 worker: Linux startup complete
20240716 162936 worker: Boot config is ok
20240716 162936 worker: Session loaded
20240716 162941 worker: Package locks applied
20240716 162945 worker: File check complete
20240716 162945 worker: Debug logging off
20240716 162945 worker: --
20240716 162945 worker: -- System
20240716 162945 worker: --
20240716 162947 worker: Host name:     moode
20240716 162947 worker: RPi model:     Pi-4B 1.5 1GB
20240716 162947 worker: moOde release: 9.0.4 2024-07-06
20240716 162947 worker: RaspiOS:       12.6 Bookworm 64-bit
20240716 162947 worker: Linux Kernel:  6.6.31 64-bit
20240716 162947 worker: MPD version:   0.23.14
20240716 162947 worker: User id:      
20240716 162947 worker: Home folder:
20240716 162947 worker: Time zone:    
20240716 162947 worker: Kbd layout:    us
20240716 162947 worker: HDMI ports(s): on
20240716 162947 worker: Sys LED0:      off
20240716 162947 worker: Sys LED1:      off
20240716 162947 worker: Reduce power:  n/a
20240716 162947 worker: CPU governor:  ondemand
20240716 162947 worker: Integ audio:   vc4-kms-v3d
20240716 162947 worker: --
20240716 162947 worker: -- Network
20240716 162947 worker: --
20240716 162947 worker: Warning: WiFi SSID/PSK import failed
20240716 162947 worker: Eth0
20240716 162947 worker: Ethernet: adapter exists
20240716 162947 worker: Ethernet: timeout off
20240716 162947 worker: Ethernet: method  dhcp
20240716 162947 worker: Ethernet: address
20240716 162947 worker: Ethernet: netmask
20240716 162947 worker: Ethernet: gateway
20240716 162947 worker: Ethernet: pri DNS
20240716 162947 worker: Ethernet: domain
20240716 162947 worker: Wlan0
20240716 162947 worker: Wireless: adapter does not exist
20240716 162947 worker: --
20240716 162947 worker: -- File sharing
20240716 162947 worker: --
20240716 162948 worker: SMB file sharing:  on
20240716 162948 worker: NFS file sharing:  off
20240716 162948 worker: DLNA file sharing: off
20240716 162948 worker: --
20240716 162948 worker: -- Special configs
20240716 162948 worker: --
20240716 162948 worker: Plexamp:          not installed
20240716 162948 worker: RoonBridge:       not installed
20240716 162948 worker: Allo Piano 2.1:   not detected
20240716 162948 worker: Allo Boss 2:      not detected, OLED script ok
20240716 162948 worker: IQaudIO AMP*:     not detected
20240716 162948 worker: --
20240716 162948 worker: -- ALSA debug
20240716 162948 worker: --
20240716 162948 worker: Cards:  0:AUDIO           1:vc4hdmi0        2:vc4hdmi1        3:empty          
20240716 162948 worker:         4:empty           5:empty           6:empty           7:empty          
20240716 162948 worker: Mixers: 0:none            1:none            2:none            3:none            
20240716 162948 worker:         4:none            5:none            6:none            7:none            
20240716 162948 worker: --
20240716 162948 worker: -- Audio configuration
20240716 162948 worker: --
20240716 162948 worker: Audio device:  0:SMSL USB AUDIO
20240716 162948 worker: ALSA card:     has not been reassigned
20240716 162948 worker: MPD config:    update not needed
20240716 162949 worker: ALSA output:   USB
20240716 162949 worker: ALSA mode:     Default (plughw)
20240716 162949 worker: ALSA mixer     none exists
20240716 163017 worker: ALSA volume:   controller not detected
20240716 163017 worker: ALSA maxvol:   100%
20240716 163017 worker: ALSA loopback: off
20240716 163017 worker: MPD mixer      Software
20240716 163020 worker: Audio formats: S32_LE, SPECIAL, DSD_U32_BE
20240716 163020 worker: CamillaDSP:    off
20240716 163020 worker: CDSP volume:   0dB
20240716 163020 worker: CDSP volrange: 60dB
20240716 163020 worker: --
20240716 163020 worker: -- MPD startup
20240716 163020 worker: --
20240716 163020 worker: MPD service:        started
20240716 163020 worker: MPD port 6600:      accepting connections
20240716 163020 worker: MPD ALSA Default:   on
20240716 163020 worker: MPD ALSA Bluetooth: off
20240716 163020 worker: MPD HTTP Server:    off
20240716 163020 worker: MPD volume:         0
20240716 163020 worker: Saved MPD vol:      -1
20240716 163020 worker: Saved SRC vol:      0
20240716 163020 worker: MPD crossfade:      off
20240716 163020 worker: MPD ignore CUE:     no
20240716 163020 worker: MPD CDSP volsync:   off
20240716 163020 worker: --
20240716 163020 worker: -- Music sources
20240716 163020 worker: --
20240716 163020 worker: USB drive:      samsung2tb
20240716 163020 worker: NAS sources:    no music sources defined
20240716 163020 worker: --
20240716 163020 worker: -- Feature availability
20240716 163020 worker: --
20240716 163020 worker: Input select:    available, Source: MPD, Output: SMSL USB AUDIO
20240716 163020 worker: Bluetooth:       available, PIN: None, ALSA/CDSP maxvol: 100%/0dB, ALSA outmode: Standard
20240716 163020 worker: AirPlay:         available
20240716 163020 worker: Spotify Connect: available
20240716 163020 worker: Squeezelite:     available
20240716 163020 worker: UPnP client:     available
20240716 163020 worker: Plexamp:         not installed
20240716 163020 worker: RoonBridge:      not installed
20240716 163020 worker: Multiroom:       available
20240716 163020 worker: GPIO buttons:    available
20240716 163020 worker: HTTPS mode:      available
20240716 163020 worker: Stream recorder: n/a
20240716 163020 worker: --
20240716 163020 worker: -- Peripherals
20240716 163020 worker: --
20240716 163022 worker: Local display:   on
20240716 163022 worker: On-screen kbd:   off
20240716 163022 worker: HDMI 4K 60Hz:    off
20240716 163022 worker: Rotary encoder:  off
20240716 163022 worker: USB volume knob: off
20240716 163022 worker: LCD updater:     off
20240716 163022 worker: --
20240716 163022 worker: -- Miscellaneous
20240716 163022 worker: --
20240716 163022 worker: Software update:   Automatic check off
20240716 163022 worker: Auto-CoverView:    on
20240716 163022 worker: CoverView timeout: Never
20240716 163022 worker: Auto-shuffle:      off
20240716 163022 worker: Auto-play:         off
20240716 163022 worker: Web SSH server:    off
20240716 163022 worker: Maintenance task:  360 mins
20240716 163022 worker: Current view:      reset to Playback
20240716 163022 worker: Active flags:      all false
20240716 163022 worker: Reset flags:       skipped
20240716 163023 worker: Session check:     ok
20240716 163023 worker: --
20240716 163023 worker: -- Startup complete
20240716 163023 worker: --
20240716 163028 worker: Mount monitor:    started
20240716 163031 worker: Radio monitor:    off
20240716 163059 worker: Watchdog monitor: started
20240716 163059 worker: Responsiveness:   Default
20240716 163059 worker: Ready

[Tim Curtis]

I don't see anything suspicious in the log.

Try the commands below and see if there is anything correlated to the issue.

Code:

# Network stats for eth0
ifconfig

# Ping test to see if excessively long round trip times or dropped packets occur when the audio glitches happen
ping <address of Router>

# Errors or warnings in MPD log when glitches happen
Menu, Configure, MPD
Set logging to Verbse and then SAVE