I have a raspberry pi and dac king rex ud-01, I connect it with a USB self-powered ub.
Sometimes I hear the sound bug, and there is a white noise very loud. Then the music begins again but with lots of disturbance, I have to wait a while and change tracks for the sound again become correct. This often happens when I change songs. This is not very stable for me.
Anyone have an idea?
Thank you for the help
###### System info ######
Linux version 3.6.11-18-ARCH+ (nobody@) (gcc version 4.7.2 (GCC) ) #1 PREEMPT Mon Oct 21 01:15:42 CDT 2013
system load: 0.70 1.57 1.05 3/87 782
HW platform: RaspberryPi (01)
playerID: 01edc00600db08797e60cc17ac55ba62ed
###### Audio backend ######
Advanced Linux Sound Architecture Driver Version 1.0.25.
Card list: (/proc/asound/cards)
--------------------------------------------------
0 [PCM2702 ]: USB-Audio - Burr-Brown Japan PCM2702
Burr-Brown Japan Burr-Brown Japan PCM2702 at usb-bcm2708_usb-1.2.3, full speed
1 [ALSA ]: BRCM bcm2835 ALSbcm2835 ALSA - bcm2835 ALSA
bcm2835 ALSA
ALSA interface #0: (/proc/asound/card0/pcm0p/info)
--------------------------------------------------
card: 0
device: 0
subdevice: 0
stream: PLAYBACK
id: USB Audio
name: USB Audio
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1
ALSA interface #1: (/proc/asound/card1/pcm0p/info)
--------------------------------------------------
card: 1
device: 0
subdevice: 0
stream: PLAYBACK
id: bcm2835 ALSA
name: bcm2835 ALSA
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 8
subdevices_avail: 8
interface #0 stream status: (/proc/asound/card0/stream0)
--------------------------------------------------------
Burr-Brown Japan Burr-Brown Japan PCM2702 at usb-bcm2708_usb-1.2.3, full speed : USB Audio
Playback:
Status: Stop
Interface 1
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 2 OUT (ADAPTIVE)
Rates: 32000, 44100, 48000
Interface 1
Altset 2
Format: S16_LE
Channels: 1
Endpoint: 2 OUT (ADAPTIVE)
Rates: 32000, 44100, 48000
interface #1 stream status: (/proc/asound/card1/stream0)
--------------------------------------------------------
no stream present
###### Kernel module snd_usb_audio settings ######
Module = "snd_usb_audio"
Attributes:
coresize = "104025"
initsize = "0"
initstate = "live"
refcnt = "0"
srcversion = "DA9A78F56D873AB02CB47F0"
taint = ""
uevent =
Parameters:
async_unlink = "Y"
device_setup = "0,0,0,0,0,0,0,0"
enable = "Y,Y,Y,Y,Y,Y,Y,Y"
id = "(null),(null),(null),(null),(null),(null),(null),(null)"
ignore_ctl_error = "N"
index = "0,-1,-1,-1,-1,-1,-1,-1"
nrpacks = "3"
pid = "-1,-1,-1,-1,-1,-1,-1,-1"
vid = "-1,-1,-1,-1,-1,-1,-1,-1"
Sections:
.ARM.exidx.exit.text= "0xbf0f3d2c"
.ARM.exidx.init.text= "0xbf0f3d24"
.ARM.exidx = "0xbf0f6144"
.ARM.extab = "0xbf0f60d8"
.ARM.extab.init.text= "0xbf0f3d18"
.bss = "0xbf0f9b2c"
.data = "0xbf0f65f0"
.exit.text = "0xbf0f2534"
.gnu.linkonce.this_module= "0xbf0f99c4"
.init.text = "0xbf102000"
.note.gnu.build-id = "0xbf0f65cc"
.rodata = "0xbf0f2540"
.rodata.str1.4 = "0xbf0f3dc4"
.strtab = "0xbf106ec8"
.symtab = "0xbf102048"
.text = "0xbf0e7000"
__param = "0xbf0f3d34"
###### Kernel optimization parameters ######
hardware platform: RaspberryPi
current orionprofile: RuneAudio
kernel scheduler for mmcblk0: [noop] deadline cfq
/proc/sys/vm/swappiness: 0
/proc/sys/kernel/sched_latency_ns: 1500000
###### Filesystem mounts ######
....
###### mpd.conf ######
###################################
# Auto generated mpd.conf file
# please DO NOT edit it manually!
# Use RuneUI MPD config section
###################################
follow_outside_symlinks "yes"
follow_inside_symlinks "yes"
db_file "/var/lib/mpd/mpd.db"
log_file "/var/log/runeaudio/mpd.log"
pid_file "/var/run/mpd/pid"
music_directory "/mnt/MPD"
playlist_directory "/var/lib/mpd/playlists"
state_file "/var/lib/mpd/mpdstate"
user "mpd"
bind_to_address "any"
port "6600"
log_level "verbose"
zeroconf_enabled "yes"
zeroconf_name "runeaudio"
volume_normalization "no"
audio_buffer_size "512"
buffer_before_play "0%"
filesystem_charset "UTF-8"
id3v1_encoding "UTF-8"
gapless_mp3_playback "yes"
auto_update "no"
mixer_type "disabled"
group "audio"
max_connections "20"
decoder {
plugin "ffmpeg"
enabled "no"
}
input {
plugin "curl"
}
audio_output {
enabled "yes"
type "alsa"
name "USB-Audio"
device "hw:0,0"
dsd_usb "no"
}
audio_output {
enabled "yes"
type "null"
name "Null"
}
audio_output {
enabled "no"
type "alsa"
device "hw:1,0"
name "AnalogJack/HDMI"
}
###### PHP backend ######
php version: 5.5
debug level: 2
###### SESSION ######
STATUS: 1
ID: qgesslct9s59ncqv7im7u89cq7
SAVE PATH: /run
###### SESSION DATA ######
Array
(
[orionprofile] => RuneAudio
[cmediafix] => 1
[playmod] => 0
[ramplay] => 0
[sessionid] => qgesslct9s59ncqv7im7u89cq7
[mpdconfhash] => ecc7f47d16bfdab32dba3c2b889d4c9f
[lastfm_apikey] => ba8ad00468a50732a3860832eaed0882
[netconfhash] => 643f8967af551f683b3cfd493950c550
[mpdconf_advanced] => 0
[netconf_advanced] => 0
[dev] =>
[sourceconfhash] => d41d8cd98f00b204e9800998ecf8427e
[sourceconf_advanced] => 1
[debug] => 2
[hiddendebug] => 0
[opcache] => 1
[playerid] => 01edc00600db08797e60cc17ac55ba62ed
[hwplatform] => RaspberryPi
[hwplatformid] => 01
[airplay] => 0
[scrobbling_lastfm] => 0
[scrobbling_librefm] => 0
[scrobbling_jamendo] => 0
[spotify] => 0
[db_version] => 1.2
[udevil] => 1
[coverart] => 1
[volume] => 0
[ao] => 0
[ntpserver] => ntp.inrim.it
[hostname] => runeaudio
[w_queue] =>
[w_queueargs] =>
[w_lock] => 0
[w_active] => 0
[w_jobID] =>
[debugdata] =>
[netconf] => Array
(
[eth0] => Array
(
[ip] => 192.168.1.108
)
)
[lastbitdepth] => 44100:24:2
[state] => pause
[notify] =>
)
