Create a new version of paste:

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 128 to 131072
Period size range from 64 to 16384
Using max buffer size 131072
Periods = 4
was set period_size = 16384
was set buffer_size = 131072
 0 - Front Left
 1 - Front Right
^CTime per period = 2.796267
#
# dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.11.0-rc6 (maik@maik-VirtualBox) (gcc version 5.4.0 (Buildroot 2017.05-git-gfd738c8) ) #1 SMP Sat Apr 15 19:24:25 CEST 2017
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: FriendlyARM NanoPi NEO
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 131072
[    0.000000] free_area_init_node: node 0, pgdat c09594c0, node_mem_map dfba0000
[    0.000000]   Normal zone: 1024 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 131072 pages, LIFO batch:31
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: Using PSCI v0.1 Function IDs from DT
[    0.000000] percpu: Embedded 16 pages/cpu @dffad000 s32908 r8192 d24436 u65536
[    0.000000] pcpu-alloc: s32908 r8192 d24436 u65536 alloc=16*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
[    0.000000] Kernel command line: console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rootwait
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 510612K/524288K available (5120K kernel code, 359K rwdata, 1380K rodata, 1024K init, 266K bss, 13676K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xe0800000 - 0xff800000   ( 496 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0600000   (6112 kB)
[    0.000000]       .init : 0xc0800000 - 0xc0900000   (1024 kB)
[    0.000000]       .data : 0xc0900000 - 0xc0959dc0   ( 360 kB)
[    0.000000]        .bss : 0xc095b000 - 0xc099d914   ( 267 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 32.
[    0.000000]  RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=4
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] arm_arch_timer: Architected cp15 timer(s) running at 24.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000006] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.000018] Switching to timer-based delay loop, resolution 41ns
[    0.000154] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000388] Console: colour dummy device 80x30
[    0.000419] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.000434] pid_max: default: 32768 minimum: 301
[    0.000553] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000563] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001103] CPU: Testing write buffer coherency: ok
[    0.001427] /cpus/cpu@0 missing clock-frequency property
[    0.001443] /cpus/cpu@1 missing clock-frequency property
[    0.001453] /cpus/cpu@2 missing clock-frequency property
[    0.001464] /cpus/cpu@3 missing clock-frequency property
[    0.001476] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.001795] Setting up static identity map for 0x40100000 - 0x40100058
[    0.002379] smp: Bringing up secondary CPUs ...
[    0.013023] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.023677] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.034318] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.034372] smp: Brought up 1 node, 4 CPUs
[    0.034393] SMP: Total of 4 processors activated (192.00 BogoMIPS).
[    0.034399] CPU: All CPU(s) started in HYP mode.
[    0.034404] CPU: Virtualization extensions available.
[    0.035127] devtmpfs: initialized
[    0.038297] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.038511] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.038531] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    0.038773] pinctrl core: initialized pinctrl subsystem
[    0.039625] NET: Registered protocol family 16
[    0.039971] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.040896] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.040905] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.052123] SCSI subsystem initialized
[    0.052355] libata version 3.00 loaded.
[    0.052597] usbcore: registered new interface driver usbfs
[    0.052656] usbcore: registered new interface driver hub
[    0.052717] usbcore: registered new device driver usb
[    0.052905] pps_core: LinuxPPS API ver. 1 registered
[    0.052913] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.052934] PTP clock support registered
[    0.053174] Advanced Linux Sound Architecture Driver Initialized.
[    0.054052] clocksource: Switched to clocksource arch_sys_counter
[    0.062075] NET: Registered protocol family 2
[    0.062555] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.062603] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.062666] TCP: Hash tables configured (established 4096 bind 4096)
[    0.062778] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.062819] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.063007] NET: Registered protocol family 1
[    0.063383] RPC: Registered named UNIX socket transport module.
[    0.063394] RPC: Registered udp transport module.
[    0.063400] RPC: Registered tcp transport module.
[    0.063405] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.065154] workingset: timestamp_bits=30 max_order=17 bucket_order=0
[    0.073222] NFS: Registering the id_resolver key type
[    0.073258] Key type id_resolver registered
[    0.073265] Key type id_legacy registered
[    0.074194] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.074209] io scheduler noop registered
[    0.074215] io scheduler deadline registered
[    0.074401] io scheduler cfq registered (default)
[    0.074409] io scheduler mq-deadline registered
[    0.079083] sun8i-h3-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.080800] sun8i-h3-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO driver
[    0.133720] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.136418] console [ttyS0] disabled
[    0.156592] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 31, base_baud = 1500000) is a U6_16550A
[    0.772552] console [ttyS0] enabled
[    0.777889] libphy: Fixed MDIO Bus: probed
[    0.781987] CAN device driver interface
[    0.786198] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.792719] ehci-platform: EHCI generic platform driver
[    0.798174] ehci-platform 1c1d000.usb: EHCI Host Controller
[    0.803791] ehci-platform 1c1d000.usb: new USB bus registered, assigned bus number 1
[    0.811667] ehci-platform 1c1d000.usb: irq 24, io mem 0x01c1d000
[    0.844056] ehci-platform 1c1d000.usb: USB 2.0 started, EHCI 1.00
[    0.850974] hub 1-0:1.0: USB hub found
[    0.854773] hub 1-0:1.0: 1 port detected
[    0.859134] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.865334] ohci-platform: OHCI generic platform driver
[    0.870738] ohci-platform 1c1d400.usb: Generic Platform OHCI controller
[    0.877380] ohci-platform 1c1d400.usb: new USB bus registered, assigned bus number 2
[    0.885215] ohci-platform 1c1d400.usb: irq 25, io mem 0x01c1d400
[    0.958789] hub 2-0:1.0: USB hub found
[    0.962569] hub 2-0:1.0: 1 port detected
[    0.967627] sun6i-rtc 1f00000.rtc: rtc core: registered rtc-sun6i as rtc0
[    0.974427] sun6i-rtc 1f00000.rtc: RTC enabled
[    0.978971] i2c /dev entries driver
[    0.982670] IR NEC protocol handler initialized
[    0.987208] IR RC5(x/sz) protocol handler initialized
[    0.992251] IR RC6 protocol handler initialized
[    0.996782] IR JVC protocol handler initialized
[    1.001304] IR Sony protocol handler initialized
[    1.005921] IR SANYO protocol handler initialized
[    1.010616] IR Sharp protocol handler initialized
[    1.015324] IR MCE Keyboard/mouse protocol handler initialized
[    1.021147] IR XMP protocol handler initialized
[    1.026134] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    1.034281] cpu cpu0: failed to get clock: -2
[    1.038649] cpufreq-dt: probe of cpufreq-dt failed with error -2
[    1.045442] sunxi-mmc 1c0f000.mmc: Got CD GPIO
[    1.104073] sunxi-mmc 1c0f000.mmc: base:0xe0876000 irq:23
[    1.110497] usbcore: registered new interface driver usbhid
[    1.116101] usbhid: USB HID core driver
[    1.120817] sun4i-codec 1c22c00.codec: ASoC: /soc/codec-analog@01f015c0 not registered
[    1.128779] sun4i-codec 1c22c00.codec: Failed to register our card
[    1.135652] NET: Registered protocol family 17
[    1.140136] can: controller area network core (rev 20120528 abi 9)
[    1.146532] NET: Registered protocol family 29
[    1.150973] can: raw protocol (rev 20120528)
[    1.155252] can: broadcast manager protocol (rev 20161123 t)
[    1.160907] can: netlink gateway (rev 20130117) max_hops=1
[    1.166617] Key type dns_resolver registered
[    1.170984] Registering SWP/SWPB emulation handler
[    1.185890] sun4i-codec 1c22c00.codec: Codec <-> 1c22c00.codec mapping ok
[    1.194763] sun6i-rtc 1f00000.rtc: setting system clock to 1970-01-01 00:00:05 UTC (5)
[    1.202937] vcc3v0: disabling
[    1.205939] vcc5v0: disabling
[    1.208903] ALSA device list:
[    1.211865]   #0: H3 Audio Codec
[    1.215688] Waiting for root device /dev/mmcblk0p2...
[    1.261436] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.271933] mmc0: new high speed SDHC card at address 0007
[    1.277970] mmcblk0: mmc0:0007 SD08G 7.42 GiB
[    1.283998]  mmcblk0: p1 p2
[    1.306457] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to feature incompatibilities
[    1.316760] EXT4-fs (mmcblk0p2): couldn't mount as ext2 due to feature incompatibilities
[    1.329889] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly filesystem
[    1.337210] EXT4-fs (mmcblk0p2): write access will be enabled during recovery
[    1.568623] random: fast init done
[    1.906811] random: crng init done
[    2.236449] EXT4-fs (mmcblk0p2): recovery complete
[    2.258173] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.266347] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    2.276273] devtmpfs: mounted
[    2.280341] Freeing unused kernel memory: 1024K
[    2.378421] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro,data=ordered

# cat /etc/asound.conf
pcm.!default {
  type hw
  card 0
  device 0
}
ctl.!default {
  type hw
  card 0
}


# cat /proc/asound/cards
 0 [Codec          ]: H3_Audio_Codec - H3 Audio Codec
                      H3 Audio Codec


# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Codec [H3 Audio Codec], device 0: CDC PCM Codec-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

With alsamixer "unmute "Line Out""


# speaker-test -c 2
speaker-test 1.1.3
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 128 to 131072
Period size range from 64 to 16384
Using max buffer size 131072
Periods = 4
was set period_size = 16384
was set buffer_size = 131072
 0 - Front Left
 1 - Front Right

No sound on the pins?