Raspberry Pi Zero W: pops or clicks - Printable Version +- Moode Forum (https://moodeaudio.org/forum) +-- Forum: moOde audio player (https://moodeaudio.org/forum/forumdisplay.php?fid=3) +--- Forum: Support (https://moodeaudio.org/forum/forumdisplay.php?fid=7) +--- Thread: Raspberry Pi Zero W: pops or clicks (/showthread.php?tid=2629) Pages:
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Raspberry Pi Zero W: pops or clicks - _mAo_ - 06-06-2020 Hi at all. premise: I have a raspberry pi4 and moodeaudio works very well! however, I thought of using a raspberry pi zero w for electricity (I'm green, what can you do? ), so I can always keep it on. so I did the installation and it works, but I feel clicks and pops. everything has remained unchanged (NAS source, and DAC) between the two configurations, only the raspberry changes. I use a USB DAC with DSD1796 chip, in the bottom also place some logs. even if I leave the file frequency or if I set 44.1 / 16 some clicks is noticeable, rarely anyway. if set to 192/24 the songs are unheard: at least a couple of clicks are heard every 5 seconds. I tried some changes: bits and frequency, MPD version (use 6.5.2 2020-05-03, so I also tried with 0.22 of tests), left in performance, enabled the threads (and various combinations of these). I tried the parameters dwc_otg.speed = 1 dwc_otg.fiq_fix_enable = 1 dwc_otg.nak_holdoff_enable = 1 dwc_otg.fiq_fsm_enable = 0 I also tried to force the usb 1.1 mode I thought it was a CPU problem but the usage is as described by others: 10% without oversampling at 16/44, and 50% at 24/192. I think more than enough: all pocket MP3 players have smaller processors. / var / log / mpd does not report anything. do you have ideas? ----------------------------- S Y S T E M P A R A M E T E R S moOde release = 6.5.2 2020-05-03</li> Raspbian OS = 10.3 Linux kernel = 4.19.115+ #1305 Platform = Pi-Zero W 512MB v1.1 Architecture = armv6l (32-bit) System uptime = up 41 minutes Timezone = Europe/Rome Current time = 2020-06-06 17:42:50 Host name = moode Ethernet address = unassigned Ethernet MAC = no adapter WLAN address = 192.168.79.164 WLAN MAC = b8:27:eb:44:bc:7e WLAN country = IT SoC identifier = bcm2835 Core count = 1 Kernel timer freq = 100 Hz SDCard freq = 50 MHz USB boot = not available Warranty = OK Root size = 15G Root used = 19% Root available = 11G Root expand = expanded Memory free = 68 MB Memory used = 90 MB SoC temperature = 37.9°C CPU governor = performance Onboard WiFi = On Onboard BT = On HDMI output = Off LED state = 0,1 Eth addr wait = Off Max USB current = Off USB (UAC2) fix = On Pi-3B+ eth fix = Off SSH term server = On PHP-FPM version = 7.3.11 NGINX version = 1.14.2 SQLite3 version = 3.27.2 Hostapd version = 2.8-devel WiringPi version = 2.50 RPi.GPIO version = 0.7.0 A U D I O P A R A M E T E R S Audio device = USB audio device Interface = USB Mixer name = HIFI-Ref Output Hardware volume = Controller detected Max ALSA volume = 100 Max MPD volume = 100 Volume step limit = 10 Audio source = Local Output device = Local Resume MPD = No Volume knob = 0 Volume mute = Unmuted Saved MPD vol = 0 Preamp volume = 0 ALSA version = 1.1.8-1+rpt1 SoX version = 0.1.2-3 Bluetooth controller = On Pairing agent = On Airplay receiver = Off Spotify receiver = Off Squeezelite = Off UPnP client = Off DLNA server = Off GPIO button handler = Off UPnP browser = Off Auto-shuffle = Off Autoplay = Off Rotary encoder = Off Encoder params = 100 2 3 23 24 USB volume knob = Off Polarity inversion = Off Crossfeed = Off Crossfade = Off Parametric EQ = Off Graphic EQ = Off MPD httpd = Off A P P E A R A N C E S E T T I N G S Themes and backgrounds ---------------------- Theme = Default Accent color = Emerald Alpha blend = 1.0 Adaptive background = No Background image = No Cover backdrop = No Cover blur = 20px Cover scale = 1.25 Library options ---------------------- Instant play action = Add/Play Show tagview genres = Yes Show tagview covers = Yes Ellipsis limited text = No Albumview sort order = by Artist Tagview sort order = by Artist Compilation identifier = Various Artists Recently added = 1 Month Ignore articles = a,an,the UTF8 character filter = No Hi-res thumbs = Auto Cover search pri = Embedded cover Pixel ratio = 2.375 Coverview screen saver ---------------------- CoverView auto-display = Never CoverView style = Gradient (Linear) Other options ---------------------- Font size = Normal Auto-shuffle filter = None Extra metadata = track,disc,date,composer,encoded Playback history = No M P D S E T T I N G S Version = 0.22~git Volume control = hardware ALSA device = hw:1 SoX resampling = 96000:24:2 SoX quality = very high SoX multithreading = on DSD over PCM (DoP) = no Replaygain = off Replaygain preamp = 0 Volume normalization = No Audio buffer = 4096 (kb) Output buffer size = 131072 (kb) B L U E T O O T H S E T T I N G S Bluetooth ver = 5.50 Bluealsa ver = 2.0.0 Speaker sharing = No Resume MPD = No PCM buffer time = 500000 (μs) M O O D E S T A R T U P L O G 20200606 170210 worker: -- Start 20200606 170210 worker: Successfully daemonized 20200606 170211 worker: Integrity check (passed) 20200606 170211 worker: Session loaded 20200606 170211 worker: Debug logging (off) 20200606 170211 worker: Device raw: (0:ALSA|1:HIFIRef|i2s:none) 20200606 170211 worker: Device cfg: (USB audio device|1|1|HIFI-Ref Output|0) 20200606 170214 worker: ALSA volume set to (0%) 20200606 170214 moode.php: MPD connect failed: cmd=(playlist) 20200606 170215 worker: -- System 20200606 170219 worker: Host (moode) 20200606 170219 worker: moOde (6.5.2 2020-05-03) 20200606 170219 worker: Raspbian (10.3) 20200606 170219 worker: Kernel (4.19.115+ #1305) 20200606 170219 worker: Platform (Pi-Zero W 512MB v1.1) 20200606 170219 worker: ARM arch (armv6l, 32-bit kernel) 20200606 170219 worker: MPD ver (0.22~git) 20200606 170219 worker: CPU gov (performance) 20200606 170219 worker: USB boot not available 20200606 170219 worker: File system expanded 20200606 170220 worker: HDMI port off 20200606 170222 worker: File check (OK) 20200606 170222 worker: -- Network 20200606 170222 worker: eth0 does not exist 20200606 170222 worker: eth0 address not assigned 20200606 170222 worker: wlan0 exists 20200606 170222 worker: wifi country (IT) 20200606 170222 worker: wlan0 trying SSID (mAo) 20200606 170223 worker: IP addr (192.168.79.164) 20200606 170223 worker: Netmask (255.255.255.0) 20200606 170223 worker: Gateway (192.168.79.254) 20200606 170224 worker: Pri DNS (8.8.8.8) 20200606 170224 worker: Domain (1.1.1.1) 20200606 170224 worker: -- Audio 20200606 170238 worker: ALSA outputs unmuted 20200606 170238 worker: ALSA card number (1) 20200606 170238 worker: Audio output (USB audio device) 20200606 170238 worker: Audio formats (S32_LE, SPECIAL, DSD_U32_BE) 20200606 170239 worker: ALSA mixer name (HIFI-Ref Output) 20200606 170239 worker: MPD volume control (hardware) 20200606 170239 worker: Hdwr volume controller exists 20200606 170239 worker: Max ALSA volume (100%) 20200606 170239 worker: Reset renderer active flags 20200606 170239 worker: -- MPD 20200606 170241 worker: MPD conf updated 20200606 170242 worker: MPD started 20200606 170244 worker: MPD accepting connections 20200606 170244 worker: Configure MPD outputs 20200606 170244 worker: MPD output 1 ALSA default (on) 20200606 170244 worker: MPD output 2 ALSA crossfeed (off) 20200606 170244 worker: MPD output 3 ALSA parametric eq (off) 20200606 170244 worker: MPD output 4 ALSA graphic eq (off) 20200606 170244 worker: MPD output 5 ALSA polarity inversion (off) 20200606 170244 worker: MPD output 6 ALSA bluetooth (off) 20200606 170244 worker: MPD output 7 HTTP stream (off) 20200606 170244 worker: MPD crossfade (off) 20200606 170244 worker: -- Feature availability 20200606 170244 worker: Source select (available) 20200606 170244 worker: Source select (source: MPD) 20200606 170244 worker: Source select (output: USB audio device) 20200606 170244 worker: Bluetooth (available) 20200606 170244 worker: Bluetooth (started) 20200606 170252 worker: Bluetooth pairing agent (started) 20200606 170253 worker: Airplay renderer (available) 20200606 170253 worker: Spotify renderer (available) 20200606 170253 worker: Squeezelite renderer (available) 20200606 170253 worker: UPnP renderer (available) 20200606 170253 worker: DLNA server (available) 20200606 170253 worker: UPnP browser (available) 20200606 170253 worker: Audio scrobbler (available) 20200606 170253 worker: GPIO button handler (available) 20200606 170253 worker: -- Music sources 20200606 170253 worker: USB sources (none attached) 20200606 170256 worker: NAS and UPnP sources (mountall initiated) 20200606 170256 worker: -- Miscellaneous 20200606 170256 worker: USB volume knob (Off) 20200606 170256 worker: Shellinabox SSH started 20200606 170256 worker: USB auto-mounter (udisks-glue) 20200606 170257 worker: LED0 (Off) 20200606 170257 worker: LED1 (sysclass does not exist) 20200606 170257 worker: Saved MPD vol level (0) 20200606 170257 worker: Preamp volume level (0) 20200606 170257 worker: MPD volume level (0) restored 20200606 170258 worker: ALSA volume level (0%) 20200606 170258 worker: Auto-play (Off) 20200606 170258 worker: Maintenance interval (3 hrs) 20200606 170258 worker: Screen saver activation (Never) 20200606 170258 worker: Session permissions (OK) 20200606 170258 worker: Watchdog started 20200606 170258 worker: Ready pi@moode:~ $ usb-devices T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1d6b ProdID=0002 Rev=04.19 S: Manufacturer=Linux 4.19.115+ dwc_otg_hcd S: Product=DWC OTG Controller S: SerialNumber=20980000.usb C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2 P: Vendor=20b1 ProdID=000a Rev=06.60 S: Manufacturer=XMOS S: Product=HIFI-Ref C: #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=500mA I: If#=0x0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=20 Driver=snd-usb-audio I: If#=0x1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=20 Driver=snd-usb-audio I: If#=0x2 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) *** Scanning for playback devices *** Card 0, ID `ALSA', name `bcm2835 ALSA' Device 0, ID `bcm2835 ALSA', name `bcm2835 ALSA', 7 subdevices (7 available) 1..2 channels, sampling rate 8000..192000 Hz Sample formats: U8, S16_LE Buffer size range from 256 to 131072 Period size range from 256 to 131072 Subdevice 0, name `subdevice #0' Subdevice 1, name `subdevice #1' Subdevice 2, name `subdevice #2' Subdevice 3, name `subdevice #3' Subdevice 4, name `subdevice #4' Subdevice 5, name `subdevice #5' Subdevice 6, name `subdevice #6' Device 1, ID `bcm2835 IEC958/HDMI', name `bcm2835 IEC958/HDMI', 1 subdevices (1 available) 2..8 channels, sampling rate 44100..192000 Hz Sample formats: S16_LE Buffer size range from 441 to 32768 Period size range from 441 to 32768 Subdevice 0, name `subdevice #0' Device 2, ID `bcm2835 IEC958/HDMI1', name `bcm2835 IEC958/HDMI1', 1 subdevices (1 available) 2..8 channels, sampling rate 44100..192000 Hz Sample formats: S16_LE Buffer size range from 441 to 32768 Period size range from 441 to 32768 Subdevice 0, name `subdevice #0' Card 1, ID `HIFIRef', name `HIFI-Ref' Device 0, ID `USB Audio', name `USB Audio', 1 subdevices (1 available) 2 channels, sampling rate 44100..384000 Hz Sample formats: S32_LE, SPECIAL, DSD_U32_BE Buffer size range from 16 to 131072 Period size range from 8 to 65536 Subdevice 0, name `subdevice #0' pi@moode:/home $ cat /proc/asound/card1/pcm0p/sub0/sw_params tstamp_mode: NONE period_step: 1 avail_min: 12000 start_threshold: 36000 stop_threshold: 48000 silence_threshold: 0 silence_size: 0 boundary: 1572864000 pi@moode:/home $ cat /proc/asound/card1/pcm0p/sub0/hw_params access: RW_INTERLEAVED format: S32_LE subformat: STD channels: 2 rate: 96000 (96000/1) period_size: 12000 buffer_size: 48000 pi@moode:/home $ cat /proc/asound/card1/pcm0p/sub0/status state: RUNNING owner_pid : 1472 trigger_time: 2321.403261605 tstamp : 0.000000000 delay : 38259 avail : 9838 avail_max : 39954 ----- hw_ptr : 2781838 appl_ptr : 2820000 RE: Raspberry Pi Zero W: pops or clicks - Tim Curtis - 06-06-2020 Prolly SoX + SoX multi-threading is hogging resources on the slow, single-core arm6. Consider getting a 3A+ which is also low power but it's based on a fast arm7 multi-core and supports 5Ghz WiFi band. RE: Raspberry Pi Zero W: pops or clicks - _mAo_ - 06-07-2020 hmmm... ok. But is a CPU problem? Or CPU+USB (like IRQ...)? rephrase: if instead of a USB dac I use an i2s DAC connected via GPIO, the problem remains? RE: Raspberry Pi Zero W: pops or clicks - _mAo_ - 06-25-2020 (06-07-2020, 11:32 AM)_mAo_ Wrote: hmmm... ok. For information. I tried with a hifiberry digi+, then i2s not USB, and the problem is wanished. In this way all is ok. CPU still at 45% but no problem found. RE: Raspberry Pi Zero W: pops or clicks - CallMeMike - 06-26-2020 Is the USB DAC self-powered or drawing power over the USB connection...? If it is not self-powered try to use a self-powered USB hub between the RPi Zero and the USB DAC... RE: Raspberry Pi Zero W: pops or clicks - _mAo_ - 06-29-2020 (06-26-2020, 04:43 AM)CallMeMike Wrote: Is the USB DAC self-powered or drawing power over the USB connection...? No, isn't self powered. I'll trying in the next days, obviously only for verification since I solved it with the i2s. Thx for your suggest. RE: Raspberry Pi Zero W: pops or clicks - _mAo_ - 07-03-2020 With an external Power source (USB dac) the problem still persist. RE: Raspberry Pi Zero W: pops or clicks - vinnn - 07-03-2020 Is it a thin crappy USB cable by any chance? These can be prone to EMF from nearby/touching power cables and interference causing data errors and the ticking/snapping sound which should get worse as the resolution increases. RE: Raspberry Pi Zero W: pops or clicks - Tim Curtis - 07-03-2020 I would start with a fresh, unmodified 6.5.2 image and then just make one setting to configure MPD for Hardware volume. Play a track and then if there are audio glitches then there is probably some sort of hardware issue for example a bad power supply, Pi board, or as @vinnn suggested a cable thats allowing EMI to leak in. The other possibility is that the USB chipset on the ZeroW is not compatible with your DAC's USB chipset. RE: Raspberry Pi Zero W: pops or clicks - _mAo_ - 07-03-2020 no, the cable is well made. it is also the same that does not cause problems with the Raspberry 4.. I have already redone the card from the new image, nothing has changed. the power supply is not lousy, but neither is it excellent. i tried with several without differences but with the i2s dac i have no problems. I have the clicks even without oversampling, even if less, so I would say that the cable is not. I do not know what to think. |