gistfile1.txt

pi@raspberrypi:~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Hub [M-Track Hub], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
  
  
pi@raspberrypi:~ $ lsmod
Module                  Size  Used by
bnep                   10340  2 
hci_uart               17943  1 
btbcm                   5929  1 hci_uart
bluetooth             326105  22 bnep,btbcm,hci_uart
nfsd                  246430  1 
brcmfmac              186599  0 
brcmutil                5661  1 brcmfmac
cfg80211              427855  1 brcmfmac
rfkill                 16037  4 cfg80211,bluetooth
snd_bcm2835            20511  1 
bcm2835_gpiomem         3040  0 
bcm2835_wdt             3225  0 
snd_usb_audio         118544  0 
snd_hwdep               5727  1 snd_usb_audio
snd_usbmidi_lib        19801  1 snd_usb_audio
snd_rawmidi            18452  1 snd_usbmidi_lib
snd_seq_device          3621  1 snd_rawmidi
snd_pcm                75698  2 snd_bcm2835,snd_usb_audio
snd_timer              19160  1 snd_pcm
snd                    51844  10 snd_bcm2835,snd_usb_audio,snd_hwdep,snd_timer,snd_pcm,snd_rawmidi,snd_usbmidi_lib,snd_seq_device
evdev                  11396  2 
uio_pdrv_genirq         3164  0 
uio                     8000  1 uio_pdrv_genirq
i2c_dev                 5859  0 
fuse                   83461  3 
ipv6                  347530  64


pi@raspberrypi:~ $ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default
    Playback/recording through the PulseAudio sound server
sysdefault:CARD=ALSA
    bcm2835 ALSA, bcm2835 ALSA
    Default Audio Device
dmix:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Direct sample mixing device
dmix:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Direct sample mixing device
dsnoop:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Direct sample snooping device
dsnoop:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Direct sample snooping device
hw:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Direct hardware device without any conversions
hw:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Direct hardware device without any conversions
plughw:CARD=ALSA,DEV=0
    bcm2835 ALSA, bcm2835 ALSA
    Hardware device with all software conversions
plughw:CARD=ALSA,DEV=1
    bcm2835 ALSA, bcm2835 IEC958/HDMI
    Hardware device with all software conversions
sysdefault:CARD=Hub
    M-Track Hub, USB Audio
    Default Audio Device
front:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    Front speakers
surround21:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    Direct sample mixing device
dsnoop:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    Direct sample snooping device
hw:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    Direct hardware device without any conversions
plughw:CARD=Hub,DEV=0
    M-Track Hub, USB Audio
    Hardware device with all software conversions


pi@raspberrypi:~ $ nano .asoundrc
pcm.!default {
        type hw
        card 1
}

ctl.!default {
        type hw
        card 1
}


pi@raspberrypi:~ $ aplay /usr/share/sounds/alsa/Front_Center.wav
Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
aplay: set_params:1233: Sample format non available
Available formats:
- S24_3LE

pi@raspberrypi:~ $ nano .asoundrc 
pcm.!default {
        type sysdefault
        card 1
}

ctl.!default {
        type sysdefault
        card 1
}

pi@raspberrypi:~ $ aplay /usr/share/sounds/alsa/Front_Center.wav
ALSA lib dlmisc.c:252:(snd1_dlobj_cache_get) Cannot open shared library /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_pcm_sysdefault.so
aplay: main:722: audio open error: No such device or address