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Problem: Popping sound during playback
#1
Hi,

I'm currently running Moode 4.1 on a Raspberry Pi 3, ethernet connection, audio output using USB to my Schiit Gungnir Multibit DAC (gen 2 USB). Playback done using upnp from a foobar2000 server (proxied by BubbleUPnP server), controlled by BubbleUPnP on my Android phone.

I recently switched from Rune to Moode, and really appreciated the perceived sound quality improvement. However, there would be random popping noise/clicks during playback. These are completely random, and occur about once, twice or none per track. This did not happen on the same setup using Rune.

Frustrated, I flashed Rune on another MicroSD card to compare. Rune still produce zero popping noise/clicks over 3 days so far. The moment I switch back to the Moode card the noise/clicks comes back.

MPD cache set to 4096/30% on both setup. Switching CPU config to on-demand, or enabling UAC2 fix, did not resolve the issue.

I really want to continue using Moode, since the sound quality is absolutely stellar outside this issue. However it's also a very distracting issue Sad . Hopefully this can be resolved.

I maintain a few Ubuntu servers at work so I'm very familiar with the terminal. Feel free to give more technical instructions.
Reply
#2
Hi,

Comparisons to other players are of no use in troubleshooting moOde because these other players don't run the same OS, Linux kernel or multitude of other components and all the software versions and configs are different.

Your best bet to troubleshoot audio glitches is to try and isolate the problem. For example, try copying some songs to a USB stick and then play them directly via MPD and see if the glitches occur.

-Tim
Reply
#3
Hi Tim,

I added a few files to a USB stick, and also to the SD card which moode is on. They are 24/88.2 files. Same problem occur (popping even more frequently using the USB stick, actually).

From my uneducated guess this is probably related to the buffer size for my USB audio device. It would be helpful if you can give instructions on increasing the USB buffer and then I can test again.
Reply
#4
Reboot then post entire output from System info and tail of MPD log when the glitches occur and I'll have a look.

1) Menu, Configure, System | Menu, System info
2) tail -f /var/log/mpd/log

-Tim
Reply
#5
Hi Tim,

Here's what I did:

1) Put a single FLAC 24/88.2 file on the USB stick
2) Plug the stick to Pi, rescan
3) Reboot
4) After reboot, click play on the web UI
5) Once the glitch occur around 3 or 4 times (1 minute 30 seconds in), click pause
6) Obtain the logs

I did a few reboots between step 3 to step 4 to get the process down right. The log files are as such:

1) Menu, Configure, System | Menu, System info


Code:
System information

            
      S Y S T E M    P A R A M E T E R S  

    Date and time    = 2018-05-24 13:02:26
    System uptime    = up 2 minutes
    Timezone    = America/Detroit
    moOde        = Release 4.1 2018-04-02

    Host name    = moode
    ETH0  IP    = 192.168.1.160
    ETH0  MAC    = b8:27:eb:61:49:c8
    WLAN0 IP    = unassigned
    WLAN0 MAC    = no adapter
    WiFi country    = SG

    HDWR REV    = Pi-3B 1GB v1.2
    SoC         = BCM2835
    CORES        = 4
    ARCH        = armv7l
    RASPBIAN    = 9.4
    KERNEL        = 4.14.32-v7+
    KTIMER FREQ    = 100 Hz
    USB BOOT    = not enabled
    Warranty    = OK

    ROOT size    = 7.2G
    ROOT used     = 30%
    ROOT avail    = 4.9G
    FS expand    = expanded
    MEM free     = 656 MB
    MEM used     = 56 MB
    Temperature     = 55.8°C
 
    CPU GOV        = performance
    MPD SCHDPOL    = TS
    P3-WIFI        = Off
    P3-BT        = Off
    HDMI        = Off
    ETH0 CHECK    = On
    MAX USB CUR    = Off
    UAC2 FIX    = On
    SSH server    = Off

    LED0        = on
    LED1        = on

      C O R E    S E R V E R S  

    PHP-FPM        = 7.0.27
    NGINX        = 1.10.3
    SQLite        = 3.16.2
    Bluetooth    = 5.49

      C P U    L O A D  

    CPU    %usr    %sys    %idle
    all    0.88    0.63    98.49
    0    0.00    0.00    100.00
    1    1.00    1.00    98.00
    2    0.00    1.49    98.51
    3    2.50    0.00    97.50

      P R O C E S S    L O A D  

    PRI RTPRIO COMMAND         %MEM PSR %CPU
     19      - sysinfo.sh       0.2   1  3.5
     29      - mpd              2.5   3  2.9
     19      - systemd          0.6   0  2.0
     19      - kworker/1:1      0.0   1  0.8
     19      - systemd-journal  0.4   2  0.6
     19      - sudo             0.3   3  0.5
     19      - systemd-udevd    0.3   0  0.4
     19      - php-fpm7.0       1.1   2  0.4
     19      - mmcqd/0          0.0   0  0.3

      C L O C K    F R E Q U E N C I E S  

         arm   = 600 MHz               pwm   = 0 MHz
         core  = 250 MHz               emmc  = 200 MHz
         h264  = 250 MHz               pixel = 0 MHz
         isp   = 250 MHz               vec   = 0 MHz
         v3d   = 250 MHz               hdmi  = 0 MHz
         uart  = 47 MHz               dpi   = 0 MHz

    SD card    = 50 MHz

      S Y S T E M    V O L T A G E S  

    core            = 1.2000V
    sdram controller    = 1.2000V
    sdram I/O        = 1.2000V
    sdram chip        = 1.2250V

      U I  C U S T O M I Z A T I O N S  

    Theme            = Standard
    Accent color        = Emerald
    Alpha blend        = 1.0
    Adaptive background    = No
    Background image    = No
    Playback history    = No
    Extra metadata        = Yes
    Library            = Use Artist

      A U D I O    P A R A M E T E R S  

    Audio device        = USB audio device
    Interface        = USB
    Hdwr volume        =
    Mixer name        = PCM
    Output stream        = Closed
    ALSA version        = 1.1.3-5+rpi3
    SoX version        = 0.1.2-2

    Volume knob        = 0
    Volume mute        = Unmuted

    Bluetooth controller    = Off
    Airplay receiver    = Off
    Squeezelite        = Off
    UPnP renderer        = On
    DLNA server        = Off

    Rotary encoder        = Off
    Encoder params        = 100 2 3 4 5
    Crossfeed        = Off
    Parametric EQ        = Off
    Graphic EQ        = Off
    Auto-shuffle        = Off
    Autoplay        = Off
    MPD crossfade        = Off

      M P D    S E T T I N G S  

    Version            = 0.20.18
    Volume control        = disabled
    ALSA device        = hw:1
    SoX resampling        = disabled
    SoX quality        = very high
    SoX multithreading    = off
    Audio buffer (kb)    = 4096
    Buffer before play    = 30%
    Output buffer size (kb)    = 81920
    Volume normalization    = no
    DSD over PCM (DoP)    = no
    Replay gain        = off

      A I R P L A Y    S E T T I N G S  

    Version            = 3.1.7
    Friendly name        = Moode Airplay
    ALSA device        = hw:1
    Volume mixer        = auto
    Resume MPD after    = No
    Output bit depth    = S16
    Output sample rate    = 44100
    Session interruption    = no
    Session timeout (ms)    = 120
    Audio buffer (secs)    = 0.0

      S Q U E E Z E L I T E    S E T T I N G S  

    Version            = 1.8.7-1052 "DSD/SRC enabled"
    Friendly name        = Moode
    ALSA device        = hw:0
    ALSA params        = 80:4::1
    Output buffers        = 40000:100000
    Task priority        = 45
    Codec list        = flac,pcm,mp3,ogg,aac,alac,dsd
    Other options        = -W -D 500 -R E

      M O O D E    L O G  

    20180524 130026 worker: - Start
    20180524 130027 worker: Successfully daemonized
    20180524 130027 worker: - Init
    20180524 130027 worker: Session loaded
    20180524 130027 worker: Debug logging (on)
    20180524 130028 worker: Host (moode)
    20180524 130028 worker: Hdwr (Pi-3B 1GB v1.2)
    20180524 130028 worker: Arch (armv7l)
    20180524 130028 worker: Rasp (9.4)
    20180524 130028 worker: Kver (4.14.32-v7+)
    20180524 130028 worker: Ktyp (Standard)
    20180524 130028 worker: Gov  (performance)
    20180524 130028 worker: Rel  (Moode 4.1 2018-04-02)
    20180524 130028 worker: Upd  (None)
    20180524 130028 worker: MPD  (0.20.18)
    20180524 130028 worker: USB boot not enabled yet
    20180524 130028 worker: File system expanded
    20180524 130028 worker: HDMI port off
    20180524 130029 worker: File check ok
    20180524 130029 worker: - Network
    20180524 130029 worker: eth0 exists
    20180524 130029 worker: eth0 (192.168.1.160)
    20180524 130029 worker: wlan0 does not exist
    20180524 130029 worker: - Audio
    20180524 130029 worker: ALSA outputs unmuted
    20180524 130029 worker: Audio output (USB audio device)
    20180524 130029 worker: ALSA mixer name (PCM)
    20180524 130029 worker: MPD volume control (disabled)
    20180524 130030 worker: Hdwr volume controller exists
    20180524 130030 worker: - Services
    20180524 130032 worker: MPD started
    20180524 130032 worker: MPD scheduler policy (time-share)
    20180524 130032 worker: Configure MPD outputs
    20180524 130032 readMpdResponse(): reading response
    20180524 130032 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130032 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130032 readMpdResponse(): reading response
    20180524 130032 readMpdResponse(): success $str=(OK)
    20180524 130032 readMpdResponse(): success $resp[0]=(outputid: 0)
    20180524 130032 worker: MPD output 1 ALSA default (on)
    20180524 130032 worker: MPD output 2 ALSA crossfeed (off)
    20180524 130032 worker: MPD output 3 ALSA parametric eq (off)
    20180524 130032 worker: MPD output 4 ALSA graphic eq (off)
    20180524 130032 worker: MPD output 5 ALSA bluetooth (off)
    20180524 130032 worker: MPD crossfade (off)
    20180524 130032 worker: UPnP renderer started
    20180524 130032 worker: - Last
    20180524 130032 worker: USB source (NEW VOLUME)
    20180524 130032 worker: NAS sources (none configured)
    20180524 130032 worker: Volume level (0) restored
    20180524 130032 readMpdResponse(): reading response
    20180524 130032 readMpdResponse(): success $str=(OK)
    20180524 130032 readMpdResponse(): success $resp[0]=(OK)
    20180524 130032 worker: Maintenance interval (21600)
    20180524 130032 worker: Watchdog started
    20180524 130032 worker: Ready
    20180524 130032 engine-mpd: Connect
    20180524 130032 engine-mpd: Session loaded
    20180524 130032 engine-mpd: Open socket
    20180524 130032 readMpdResponse(): reading response
    20180524 130032 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130032 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130032 engine-mpd: Get initial status
    20180524 130032 readMpdResponse(): reading response
    20180524 130032 readMpdResponse(): success $str=(OK)
    20180524 130032 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130032 engine-mpd: UI state=(stop), MPD state=(stop)
    20180524 130032 engine-mpd: Idle
    20180524 130032 engine-mpd: Wait for idle timeout
    20180524 130032 readMpdResponse(): reading response
    20180524 130033 engine-mpd: Connect
    20180524 130033 engine-mpd: Session loaded
    20180524 130033 engine-mpd: Open socket
    20180524 130033 readMpdResponse(): reading response
    20180524 130033 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130033 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130033 engine-mpd: Get initial status
    20180524 130033 readMpdResponse(): reading response
    20180524 130033 readMpdResponse(): success $str=(OK)
    20180524 130033 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130033 engine-mpd: UI state=(stop), MPD state=(stop)
    20180524 130033 engine-mpd: Idle
    20180524 130033 engine-mpd: Wait for idle timeout
    20180524 130033 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130034 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130034 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $resp[0]=(OK)
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $resp[0]=(changed: player)
    20180524 130034 engine-mpd: resp[0]=(changed: player)
    20180524 130034 engine-mpd: Get new status
    20180524 130034 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130034 engine-mpd: Idle timeout event=(changed: player)
    20180524 130034 engine-mpd: Generating enhanced metadata
    20180524 130034 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $resp[0]=(file: USB/NEW VOLUME/test.flac)
    20180524 130034 readMpdResponse(): success $resp[0]=(changed: player)
    20180524 130034 engine-mpd: resp[0]=(changed: player)
    20180524 130034 avprobe -show_streams "/var/lib/mpd/music/USB/NEW VOLUME/test.flac" 2>&1 | egrep "codec_name|sample_fmt|sample_rate|channels|bits_per_raw_sample"
    20180524 130034 engine-mpd: Get new status
    20180524 130034 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130034 engine-mpd: Idle timeout event=(changed: player)
    20180524 130034 engine-mpd: Generating enhanced metadata
    20180524 130034 readMpdResponse(): reading response
    20180524 130034 readMpdResponse(): success $str=(OK)
    20180524 130034 readMpdResponse(): success $resp[0]=(file: USB/NEW VOLUME/test.flac)
    20180524 130034 avprobe -show_streams "/var/lib/mpd/music/USB/NEW VOLUME/test.flac" 2>&1 | egrep "codec_name|sample_fmt|sample_rate|channels|bits_per_raw_sample"
    20180524 130035 enhanceMetadata(): coverurl: (/coverart.php/USB%2FNEW%20VOLUME%2Ftest.flac)
    20180524 130035 enhanceMetadata(): Song file
    20180524 130035 engine-mpd: Metadata returned to client: Size=(30)
    20180524 130035 enhanceMetadata(): coverurl: (/coverart.php/USB%2FNEW%20VOLUME%2Ftest.flac)
    20180524 130035 enhanceMetadata(): Song file
    20180524 130035 engine-mpd: Metadata returned to client: Size=(30)
    20180524 130036 engine-mpd: Connect
    20180524 130036 engine-mpd: Session loaded
    20180524 130036 engine-mpd: Open socket
    20180524 130036 readMpdResponse(): reading response
    20180524 130036 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130036 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130036 engine-mpd: Get initial status
    20180524 130036 readMpdResponse(): reading response
    20180524 130036 readMpdResponse(): success $str=(OK)
    20180524 130036 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130036 engine-mpd: UI state=(play), MPD state=(play)
    20180524 130036 engine-mpd: Idle
    20180524 130036 engine-mpd: Wait for idle timeout
    20180524 130036 readMpdResponse(): reading response
    20180524 130036 engine-mpd: Connect
    20180524 130036 engine-mpd: Session loaded
    20180524 130036 engine-mpd: Open socket
    20180524 130036 readMpdResponse(): reading response
    20180524 130036 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130036 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130036 engine-mpd: Get initial status
    20180524 130036 readMpdResponse(): reading response
    20180524 130036 readMpdResponse(): success $str=(OK)
    20180524 130036 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130036 engine-mpd: UI state=(play), MPD state=(play)
    20180524 130036 engine-mpd: Idle
    20180524 130036 engine-mpd: Wait for idle timeout
    20180524 130036 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130218 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(changed: player)
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 engine-mpd: resp[0]=(changed: player)
    20180524 130218 readMpdResponse(): success $resp[0]=(changed: player)
    20180524 130218 engine-mpd: Get new status
    20180524 130218 engine-mpd: resp[0]=(changed: player)
    20180524 130218 engine-mpd: Get new status
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130218 engine-mpd: Idle timeout event=(changed: player)
    20180524 130218 engine-mpd: Idle timeout event=(changed: player)
    20180524 130218 engine-mpd: Generating enhanced metadata
    20180524 130218 engine-mpd: Generating enhanced metadata
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(file: USB/NEW VOLUME/test.flac)
    20180524 130218 readMpdResponse(): success $resp[0]=(file: USB/NEW VOLUME/test.flac)
    20180524 130218 enhanceMetadata(): coverurl: (/coverart.php/USB%2FNEW%20VOLUME%2Ftest.flac)
    20180524 130218 enhanceMetadata(): coverurl: (/coverart.php/USB%2FNEW%20VOLUME%2Ftest.flac)
    20180524 130218 enhanceMetadata(): Song file
    20180524 130218 enhanceMetadata(): Song file
    20180524 130218 engine-mpd: Metadata returned to client: Size=(30)
    20180524 130218 engine-mpd: Metadata returned to client: Size=(30)
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(OK)
    20180524 130218 engine-mpd: Connect
    20180524 130218 engine-mpd: Session loaded
    20180524 130218 engine-mpd: Open socket
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130218 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130218 engine-mpd: Get initial status
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130218 engine-mpd: UI state=(pause), MPD state=(pause)
    20180524 130218 engine-mpd: Idle
    20180524 130218 engine-mpd: Wait for idle timeout
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 engine-mpd: Connect
    20180524 130218 engine-mpd: Session loaded
    20180524 130218 engine-mpd: Open socket
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK MPD 0.20.0)
    20180524 130218 readMpdResponse(): success $resp[0]=(OK MPD 0.20.0)
    20180524 130218 engine-mpd: Get initial status
    20180524 130218 readMpdResponse(): reading response
    20180524 130218 readMpdResponse(): success $str=(OK)
    20180524 130218 readMpdResponse(): success $resp[0]=(volume: -1)
    20180524 130218 engine-mpd: UI state=(pause), MPD state=(pause)
    20180524 130218 engine-mpd: Idle
    20180524 130218 engine-mpd: Wait for idle timeout
    20180524 130218 readMpdResponse(): reading response

2) tail -f /var/log/mpd/log

Code:
May 24 12:32 : update: added USB/NEW VOLUME/test.flac
May 24 12:35 : player: played "USB/NEW VOLUME/test.flac"
May 24 12:41 : player: played "USB/NEW VOLUME/test.flac"
May 24 12:51 : player: played "USB/NEW VOLUME/test.flac"
May 24 13:00 : player: played "USB/NEW VOLUME/test.flac"

Thanks for your help
Reply
#6
Nothing suspicious in the logs except for the line below. There should be a value but its blank. I don't think this is related to the audio glitches. The glitches could be result of a bugs in the particular versions of ALSA, Kernel USB audio driver or MPD. 

Hdwr volume        =

Try the cmds below:

Code:
1) Current hardware volume level
/var/www/command/util.sh get-alsavol PCM

2) Hardware volume level fetched during moOde startup
sqlite3 /var/local/www/db/moode-sqlite3.db "select * from cfg_system where param='alsavolume'"

-Tim
Reply
#7
Hi!

I experience a very loud peak noise between two songs playing from a playlist on an USB-Stick. It does not happen all the time, but quite often. This is not just an annoying click, but it is so loud that it makes me jump.

I checked the mp3 files and they seem to be fine.

I appreciate the sound quality with moode, but this makes it unusable for me. I hope there is a solution to this problem.
  
Here is the info about my installation (please let me know if you need more):

Release Information
Platform Information
  • Raspbian ver: 9.4
  • Linux kernel: 4.14.32-v7+, armv7l
  • Hdwr revision: Pi-3B 1GB v1.2
  • MPD version: 0.20.18

DSP OPERATIONS
Resampling: off
Crossfeed: off
Equalizer: Graphic EQ: (Hi-Lo Boost), Parametric EQ: (off}
Crossfade: 10 seconds
Other: Volume normalize (no}, Replaygain (off)
Chip options: FIR interpolation with de-emphasis, gain=0 dB, boost=0 dB
Volume ctl: Software (MPD 32-bit float with dither)

AUDIO DEVICE
Device: HiFiBerry DAC+ Pro
Chip: Burr Brown PCM5122
Architecture: Sigma/Delta Advanced Segment 24 bit 192 kHz
Interface: I2S
Reply
#8
Hi,

Zip up a couple of the mp3 files and email me a download link. I see if I can reproduce the issue.

-Tim
Reply
#9
Hi Tim,

The output looks like this
Code:
pi@moode:~ $ /var/www/command/util.sh get-alsavol PCM
pi@moode:~ $ sqlite3 /var/local/www/db/moode-sqlite3.db "select * from cfg_system where param='alsavolume'"
35|alsavolume|

I digged a bit and found out how to increase the hardware buffer size in my /etc/mpd.conf file from 0.5s to 1s by adding
Code:
buffer_time "1000000"


Currently the file looks like this

Code:
#########################################
# This file is automatically generated by
# the player MPD configuration page.
#########################################

music_directory "/var/lib/mpd/music"
playlist_directory "/var/lib/mpd/playlists"
db_file "/var/lib/mpd/database"
log_file "/var/log/mpd/log"
pid_file "/var/run/mpd/pid"
state_file "/var/lib/mpd/state"
sticker_file "/var/lib/mpd/sticker.sql"
user "mpd"
group "audio"
bind_to_address "any"
port "6600"
log_level "default"
restore_paused "yes"
auto_update "no"
follow_outside_symlinks "yes"
follow_inside_symlinks "yes"
zeroconf_enabled "no"
zeroconf_name "Moode MPD"
mixer_type "disabled"
gapless_mp3_playback "yes"
replaygain "off"
volume_normalization "no"
audio_buffer_size "4096"
buffer_before_play "30%"
max_output_buffer_size "81920"
id3v1_encoding "UTF-8"
filesystem_charset "UTF-8"
max_connections "20"

decoder {
plugin "ffmpeg"
enabled "yes"
}

input {
plugin "curl"
}

resampler {
plugin "soxr"
quality "very high"
threads "1"
}

audio_output {
type "alsa"
name "ALSA default"
device "hw:1,0"
dop "no"
buffer_time "1000000"
}

audio_output {
type "alsa"
name "ALSA crossfeed"
device "crossfeed"
dop "no"
}

audio_output {
type "alsa"
name "ALSA parametric eq"
device "eqfa4p"
dop "no"
}

audio_output {
type "alsa"
name "ALSA graphic eq"
device "alsaequal"
dop "no"
}

audio_output {
type "alsa"
name "ALSA bluetooth"
device "btstream"
}

The issue seems to have gone away for now. Will be testing over the next few days and let you know the result.
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#10
No output from the commands ? That indicates a broken build. Can't help with that...

pi@moode:~ $ /var/www/command/util.sh get-alsavol PCM
pi@moode:~ $ sqlite3 /var/local/www/db/moode-sqlite3.db "select * from cfg_system where param='alsavolume'"
35|alsavolume|
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