!!################################
!!ALSA Information Script v 0.5.3
!!################################

!!Script ran on: Tue Sep 10 09:01:24 UTC 2024


!!Linux Distribution
!!------------------

ID_LIKE=debian


!!DMI Information
!!---------------

Manufacturer:      
Product Name:      
Product Version:   
Firmware Version:  
System SKU:        
Board Vendor:      
Board Name:        


!!ACPI Device Status Information
!!---------------



!!ACPI SoundWire Device Status Information
!!---------------



!!Kernel Information
!!------------------

Kernel release:    #1529 SMP PREEMPT Tue Mar 8 12:26:46 GMT 2022
Operating System:  GNU/Linux
Architecture:      aarch64
Processor:         unknown
SMP Enabled:       Yes


!!ALSA Version
!!------------

Driver version:     k5.10.103-v8 
Library version:    1.1.8
Utilities version:  1.1.8


!!Loaded ALSA modules
!!-------------------

snd_aloop (card 0)
snd_bcm2835 (card 1)
snd_usb_audio (card 2)
vc4 (card 3)


!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - Yes

Jack:
      Installed - Yes (/usr/bin/jackd)
      Running - No

Jack2:
      Installed - Yes (/usr/bin/jackdbus)
      Running - No


!!Soundcards recognised by ALSA
!!-----------------------------

 0 [D1             ]: Loopback - Loopback
                      Loopback 1
 1 [Headphones     ]: bcm2835_headpho - bcm2835 Headphones
                      bcm2835 Headphones
 2 [Device         ]: USB-Audio - USB Audio Device
                      C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.2, full speed
 3 [vc4hdmi        ]: vc4-hdmi - vc4-hdmi
                      vc4-hdmi


!!PCI Soundcards installed in the system
!!--------------------------------------



!!Modprobe options (Sound related)
!!--------------------------------

snd_pcsp: index=-2
snd_usb_audio: index=-2
snd_atiixp_modem: index=-2
snd_intel8x0m: index=-2
snd_via82xx_modem: index=-2
snd_aloop: pcm_substreams=1 id=1 enable=1
snd_bcm2835: enable_compat_alsa=0
snd_bcm2835: enable_hdmi=1


!!Loaded sound module options
!!---------------------------

!!Module: snd_aloop
	enable : Y,N,N,N,N,N,N,N
	id : 1,(null),(null),(null),(null),(null),(null),(null)
	index : -1,-1,-1,-1,-1,-1,-1,-1
	pcm_notify : 0,0,0,0,0,0,0,0
	pcm_substreams : 1,8,8,8,8,8,8,8
	timer_source : (null),(null),(null),(null),(null),(null),(null),(null)

!!Module: snd_bcm2835
	enable_compat_alsa : N
	enable_hdmi : Y
	enable_headphones : Y
	force_bulk : N

!!Module: snd_usb_audio
	autoclock : Y
	delayed_register : (null),(null),(null),(null),(null),(null),(null),(null)
	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 : -2,-1,-1,-1,-1,-1,-1,-1
	pid : -1,-1,-1,-1,-1,-1,-1,-1
	quirk_alias : (null),(null),(null),(null),(null),(null),(null),(null)
	skip_validation : N
	use_vmalloc : Y
	vid : -1,-1,-1,-1,-1,-1,-1,-1

!!Module: vc4
	fkms_max_refresh_rate : 85
	tv_norm : (null)


!!Sysfs card info
!!---------------

!!Card: /sys/class/sound/card0
Driver: /sys/bus/platform/drivers/snd_aloop
Tree:
	/sys/class/sound/card0
	|-- controlC0
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- power
	|   |-- subsystem -> ../../../../../../class/sound
	|   `-- uevent
	|-- device -> ../../../snd_aloop.0
	|-- id
	|-- number
	|-- pcmC0D0c
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../class/sound
	|   `-- uevent
	|-- pcmC0D0p
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../class/sound
	|   `-- uevent
	|-- pcmC0D1c
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../class/sound
	|   `-- uevent
	|-- pcmC0D1p
	|   |-- dev
	|   |-- device -> ../../card0
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../class/sound
	|   `-- uevent
	|-- power
	|   |-- autosuspend_delay_ms
	|   |-- control
	|   |-- runtime_active_time
	|   |-- runtime_status
	|   `-- runtime_suspended_time
	|-- subsystem -> ../../../../../class/sound
	`-- uevent

!!Card: /sys/class/sound/card1
Driver: /sys/bus/platform/drivers/bcm2835_audio
Tree:
	/sys/class/sound/card1
	|-- controlC1
	|   |-- dev
	|   |-- device -> ../../card1
	|   |-- power
	|   |-- subsystem -> ../../../../../../../../class/sound
	|   `-- uevent
	|-- device -> ../../../bcm2835_audio
	|-- id
	|-- number
	|-- pcmC1D0p
	|   |-- dev
	|   |-- device -> ../../card1
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../../../class/sound
	|   `-- uevent
	|-- power
	|   |-- autosuspend_delay_ms
	|   |-- control
	|   |-- runtime_active_time
	|   |-- runtime_status
	|   `-- runtime_suspended_time
	|-- subsystem -> ../../../../../../../class/sound
	`-- uevent

!!Card: /sys/class/sound/card2
Driver: /sys/bus/usb/drivers/snd-usb-audio
Tree:
	/sys/class/sound/card2
	|-- controlC2
	|   |-- dev
	|   |-- device -> ../../card2
	|   |-- power
	|   |-- subsystem -> ../../../../../../../../../../../class/sound
	|   `-- uevent
	|-- device -> ../../../1-1.2:1.0
	|-- id
	|-- number
	|-- pcmC2D0c
	|   |-- dev
	|   |-- device -> ../../card2
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../../../../../../class/sound
	|   `-- uevent
	|-- pcmC2D0p
	|   |-- dev
	|   |-- device -> ../../card2
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../../../../../../class/sound
	|   `-- uevent
	|-- power
	|   |-- autosuspend_delay_ms
	|   |-- control
	|   |-- runtime_active_time
	|   |-- runtime_status
	|   `-- runtime_suspended_time
	|-- subsystem -> ../../../../../../../../../../class/sound
	`-- uevent

!!Card: /sys/class/sound/card3
Driver: /sys/bus/platform/drivers/vc4_hdmi
Tree:
	/sys/class/sound/card3
	|-- controlC3
	|   |-- dev
	|   |-- device -> ../../card3
	|   |-- power
	|   |-- subsystem -> ../../../../../../../class/sound
	|   `-- uevent
	|-- device -> ../../../3f902000.hdmi
	|-- id
	|-- number
	|-- pcmC3D0p
	|   |-- dev
	|   |-- device -> ../../card3
	|   |-- pcm_class
	|   |-- power
	|   |-- subsystem -> ../../../../../../../class/sound
	|   `-- uevent
	|-- power
	|   |-- autosuspend_delay_ms
	|   |-- control
	|   |-- runtime_active_time
	|   |-- runtime_status
	|   `-- runtime_suspended_time
	|-- subsystem -> ../../../../../../class/sound
	`-- uevent


!!USB Descriptors
!!---------------
--startcollapse--

Bus 001 Device 007: ID 0d8c:0014 C-Media Electronics, Inc. Audio Adapter (Unitek Y-247A)
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x0d8c C-Media Electronics, Inc.
  idProduct          0x0014 Audio Adapter (Unitek Y-247A)
  bcdDevice            1.00
  iManufacturer           1 C-Media Electronics Inc.
  iProduct                2 USB Audio Device
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x00fd
    bNumInterfaces          4
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0 
      iInterface              0 
      AudioControl Interface Descriptor:
        bLength                10
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength       0x0064
        bInCollection           2
        baInterfaceNr(0)        1
        baInterfaceNr(1)        2
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bNrChannels             2
        wChannelConfig     0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames           0 
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             2
        wTerminalType      0x0201 Microphone
        bAssocTerminal          0
        bNrChannels             1
        wChannelConfig     0x0001
          Left Front (L)
        iChannelNames           0 
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             6
        wTerminalType      0x0301 Speaker
        bAssocTerminal          0
        bSourceID               9
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             7
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               8
        iTerminal               0 
      AudioControl Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      5 (SELECTOR_UNIT)
        bUnitID                 8
        bNrInPins               1
        baSourceID(0)          10
        iSelector               0 
      AudioControl Interface Descriptor:
        bLength                10
        bDescriptorType        36
        bDescriptorSubtype      6 (FEATURE_UNIT)
        bUnitID                 9
        bSourceID              15
        bControlSize            1
        bmaControls(0)       0x01
          Mute Control
        bmaControls(1)       0x02
          Volume Control
        bmaControls(2)       0x02
          Volume Control
        iFeature                0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      6 (FEATURE_UNIT)
        bUnitID                10
        bSourceID               2
        bControlSize            1
        bmaControls(0)       0x43
          Mute Control
          Volume Control
          Automatic Gain Control
        bmaControls(1)       0x00
        iFeature                0 
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      6 (FEATURE_UNIT)
        bUnitID                13
        bSourceID               2
        bControlSize            1
        bmaControls(0)       0x03
          Mute Control
          Volume Control
        bmaControls(1)       0x00
        iFeature                0 
      AudioControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      4 (MIXER_UNIT)
        bUnitID                15
        bNrInPins               2
        baSourceID(0)           1
        baSourceID(1)          13
        bNrChannels             2
        wChannelConfig     0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames           0 
        bmControls(0)        0x00
        iMixer                  0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           1
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                14
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             2
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            2 Discrete
        tSamFreq[ 0]        48000
        tSamFreq[ 1]        44100
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            9
          Transfer Type            Isochronous
          Synch Type               Adaptive
          Usage Type               Data
        wMaxPacketSize     0x00c8  1x 200 bytes
        bInterval               1
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         1 Milliseconds
          wLockDelay         0x0001
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0 
      iInterface              0 
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           7
        bDelay                  1 frames
        wFormatTag         0x0001 PCM
      AudioStreaming Interface Descriptor:
        bLength                14
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             1
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            2 Discrete
        tSamFreq[ 0]        48000
        tSamFreq[ 1]        44100
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes           13
          Transfer Type            Isochronous
          Synch Type               Synchronous
          Usage Type               Data
        wMaxPacketSize     0x0064  1x 100 bytes
        bInterval               1
        bRefresh                0
        bSynchAddress           0
        AudioStreaming Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay         0x0000
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      60
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval               2
Device Status:     0x0000
  (Bus Powered)
--endcollapse--


!!USB Stream information
!!----------------------
--startcollapse--

C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.2, full speed : USB Audio

Playback:
  Status: Stop
  Interface 1
    Altset 1
    Format: S16_LE
    Channels: 2
    Endpoint: 1 OUT (ADAPTIVE)
    Rates: 48000, 44100
    Bits: 16
    Channel map: FL FR

Capture:
  Status: Stop
  Interface 2
    Altset 1
    Format: S16_LE
    Channels: 1
    Endpoint: 2 IN (SYNC)
    Rates: 48000, 44100
    Bits: 16
    Channel map: MONO
--endcollapse--


!!USB Mixer information
!!---------------------
--startcollapse--

USB Mixer: usb_id=0x0d8c0014, ctrlif=0, ctlerr=0
Card: C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.2, full speed
  Unit: 9
    Control: name="Speaker Playback Volume", index=0
    Info: id=9, control=2, cmask=0x3, channels=2, type="S16"
    Volume: min=-9472, max=0, dBmin=-3700, dBmax=0
  Unit: 9
    Control: name="Speaker Playback Switch", index=0
    Info: id=9, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
  Unit: 10
    Control: name="Auto Gain Control", index=0
    Info: id=10, control=7, cmask=0x0, channels=1, type="BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
  Unit: 10
    Control: name="Mic Capture Volume", index=0
    Info: id=10, control=2, cmask=0x0, channels=1, type="S16"
    Volume: min=-3072, max=5888, dBmin=-1200, dBmax=2300
  Unit: 10
    Control: name="Mic Capture Switch", index=0
    Info: id=10, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
  Unit: 13
    Control: name="Mic Playback Volume", index=0
    Info: id=13, control=2, cmask=0x0, channels=1, type="S16"
    Volume: min=-5888, max=2048, dBmin=-2300, dBmax=800
  Unit: 13
    Control: name="Mic Playback Switch", index=0
    Info: id=13, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
    Volume: min=0, max=1, dBmin=0, dBmax=0
--endcollapse--


!!ALSA Device nodes
!!-----------------

crw-rw----  1 root audio 116,   0 Sep 10 03:50 /dev/snd/controlC0
crw-rw----  1 root audio 116,  32 Sep 10 03:50 /dev/snd/controlC1
crw-rw----  1 root audio 116,  64 Sep 10 03:50 /dev/snd/controlC2
crw-rw----  1 root audio 116,  96 Sep 10 03:50 /dev/snd/controlC3
crw-rw----  1 root audio 116,  24 Sep 10 03:50 /dev/snd/pcmC0D0c
crw-rw----  1 root audio 116,  16 Sep 10 03:50 /dev/snd/pcmC0D0p
crw-rw----  1 root audio 116,  25 Sep 10 03:50 /dev/snd/pcmC0D1c
crw-rw----  1 root audio 116,  17 Sep 10 03:50 /dev/snd/pcmC0D1p
crw-rw----  1 root audio 116,  48 Sep 10 03:50 /dev/snd/pcmC1D0p
crw-rw----  1 root audio 116,  88 Sep 10 03:50 /dev/snd/pcmC2D0c
crw-rw----  1 root audio 116,  80 Sep 10 03:50 /dev/snd/pcmC2D0p
crw-rw----  1 root audio 116, 112 Sep 10 03:50 /dev/snd/pcmC3D0p
crw-rw----  1 root audio 116,   1 Sep 10 03:50 /dev/snd/seq
crw-rw----  1 root audio 116,  33 Sep 10 03:50 /dev/snd/timer

/dev/snd/by-id:
total 0
drwxr-xr-x 2 root root  60 Sep 10 03:50 .
drwxr-xr-x 4 root root 360 Sep 10 03:50 ..
lrwxrwxrwx 1 root root  12 Sep 10 03:50 usb-C-Media_Electronics_Inc._USB_Audio_Device-00 -> ../controlC2

/dev/snd/by-path:
total 0
drwxr-xr-x 2 root root 120 Sep 10 03:50 .
drwxr-xr-x 4 root root 360 Sep 10 03:50 ..
lrwxrwxrwx 1 root root  12 Sep 10 03:50 platform-3f902000.hdmi -> ../controlC3
lrwxrwxrwx 1 root root  12 Sep 10 03:50 platform-3f980000.usb-usb-0:1.2:1.0 -> ../controlC2
lrwxrwxrwx 1 root root  12 Sep 10 03:50 platform-bcm2835_audio -> ../controlC1
lrwxrwxrwx 1 root root  12 Sep 10 03:50 platform-snd_aloop.0 -> ../controlC0


!!Aplay/Arecord output
!!--------------------

APLAY

**** List of PLAYBACK Hardware Devices ****
card 0: D1 [Loopback], device 0: Loopback PCM [Loopback PCM]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: D1 [Loopback], device 1: Loopback PCM [Loopback PCM]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
  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 2: Device [USB Audio Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 3: vc4hdmi [vc4-hdmi], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

ARECORD

**** List of CAPTURE Hardware Devices ****
card 0: D1 [Loopback], device 0: Loopback PCM [Loopback PCM]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: D1 [Loopback], device 1: Loopback PCM [Loopback PCM]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Device [USB Audio Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

!!Amixer output
!!-------------

!!-------Mixer controls for card D1

Card hw:0 'D1'/'Loopback 1'
  Mixer name	: 'Loopback Mixer'
  Components	: ''
  Controls      : 14
  Simple ctrls  : 2
Simple mixer control 'PCM',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Digital',0
  Capabilities: cvolume
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 60 [50%] [0.00dB]
  Front Right: Capture 60 [50%] [0.00dB]

!!-------Mixer controls for card Headphones

Card hw:1 'Headphones'/'bcm2835 Headphones'
  Mixer name	: 'Broadcom Mixer'
  Components	: ''
  Controls      : 2
  Simple ctrls  : 1
Simple mixer control 'Headphone',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback -2000 [77%] [-20.00dB] [on]

!!-------Mixer controls for card Device

Card hw:2 'Device'/'C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.2, full speed'
  Mixer name	: 'USB Mixer'
  Components	: 'USB0d8c:0014'
  Controls      : 10
  Simple ctrls  : 3
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 37
  Mono:
  Front Left: Playback 17 [46%] [-20.00dB] [on]
  Front Right: Playback 17 [46%] [-20.00dB] [on]
Simple mixer control 'Mic',0
  Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: Playback 0 - 31 Capture 0 - 35
  Mono: Playback 16 [52%] [-7.00dB] [off] Capture 21 [60%] [9.00dB] [on]
Simple mixer control 'Auto Gain Control',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]

!!-------Mixer controls for card vc4hdmi

Card hw:3 'vc4hdmi'/'vc4-hdmi'
  Mixer name	: ''
  Components	: ''
  Controls      : 4
  Simple ctrls  : 0


!!Alsactl output
!!--------------

--startcollapse--
state.D1 {
	control.1 {
		iface PCM
		name 'PCM Rate Shift 100000'
		value 100000
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '80000 - 120000 (step 1)'
		}
	}
	control.2 {
		iface PCM
		name 'PCM Notify'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.3 {
		iface PCM
		name 'PCM Slave Active'
		value false
		comment {
			access read
			type BOOLEAN
			count 1
		}
	}
	control.4 {
		iface PCM
		name 'PCM Slave Format'
		value 2
		comment {
			access read
			type INTEGER
			count 1
			range '0 - 52 (step 1)'
		}
	}
	control.5 {
		iface PCM
		name 'PCM Slave Rate'
		value 48000
		comment {
			access read
			type INTEGER
			count 1
			range '0 - 192000 (step 1)'
		}
	}
	control.6 {
		iface PCM
		name 'PCM Slave Channels'
		value 2
		comment {
			access read
			type INTEGER
			count 1
			range '1 - 1024 (step 1)'
		}
	}
	control.7 {
		iface PCM
		device 1
		name 'PCM Rate Shift 100000'
		value 100000
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '80000 - 120000 (step 1)'
		}
	}
	control.8 {
		iface PCM
		device 1
		name 'PCM Notify'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.9 {
		iface PCM
		device 1
		name 'PCM Slave Active'
		value true
		comment {
			access read
			type BOOLEAN
			count 1
		}
	}
	control.10 {
		iface PCM
		device 1
		name 'PCM Slave Format'
		value 10
		comment {
			access read
			type INTEGER
			count 1
			range '0 - 52 (step 1)'
		}
	}
	control.11 {
		iface PCM
		device 1
		name 'PCM Slave Rate'
		value 48000
		comment {
			access read
			type INTEGER
			count 1
			range '0 - 192000 (step 1)'
		}
	}
	control.12 {
		iface PCM
		device 1
		name 'PCM Slave Channels'
		value 2
		comment {
			access read
			type INTEGER
			count 1
			range '1 - 1024 (step 1)'
		}
	}
	control.13 {
		iface MIXER
		name 'PCM Playback Volume'
		value.0 255
		value.1 255
		comment {
			access 'read write user'
			type INTEGER
			count 2
			range '0 - 255'
			tlv '0000000100000008ffffec1400000014'
			dbmin -5100
			dbmax 0
			dbvalue.0 0
			dbvalue.1 0
		}
	}
	control.14 {
		iface MIXER
		name 'Digital Capture Volume'
		value.0 60
		value.1 60
		comment {
			access 'read write user'
			type INTEGER
			count 2
			range '0 - 120'
			tlv '0000000100000008fffff44800000032'
			dbmin -3000
			dbmax 3000
			dbvalue.0 0
			dbvalue.1 0
		}
	}
}
state.Headphones {
	control.1 {
		iface MIXER
		name 'Headphone Playback Volume'
		value -2000
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '-10239 - 400'
			dbmin -9999999
			dbmax 400
			dbvalue.0 -2000
		}
	}
	control.2 {
		iface MIXER
		name 'Headphone Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
}
state.Device {
	control.1 {
		iface PCM
		name 'Playback Channel Map'
		value.0 0
		value.1 0
		comment {
			access read
			type INTEGER
			count 2
			range '0 - 36'
		}
	}
	control.2 {
		iface PCM
		name 'Capture Channel Map'
		value 0
		comment {
			access read
			type INTEGER
			count 1
			range '0 - 36'
		}
	}
	control.3 {
		iface MIXER
		name 'Mic Playback Switch'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.4 {
		iface MIXER
		name 'Mic Playback Volume'
		value 16
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 31'
			dbmin -9999999
			dbmax 800
			dbvalue.0 -700
		}
	}
	control.5 {
		iface MIXER
		name 'Speaker Playback Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.6 {
		iface MIXER
		name 'Speaker Playback Volume'
		value.0 17
		value.1 17
		comment {
			access 'read write'
			type INTEGER
			count 2
			range '0 - 37'
			dbmin -9999999
			dbmax 0
			dbvalue.0 -2000
			dbvalue.1 -2000
		}
	}
	control.7 {
		iface MIXER
		name 'Mic Capture Switch'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.8 {
		iface MIXER
		name 'Mic Capture Volume'
		value 21
		comment {
			access 'read write'
			type INTEGER
			count 1
			range '0 - 35'
			dbmin -1200
			dbmax 2300
			dbvalue.0 900
		}
	}
	control.9 {
		iface MIXER
		name 'Auto Gain Control'
		value true
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
	control.10 {
		iface CARD
		name 'Keep Interface'
		value false
		comment {
			access 'read write'
			type BOOLEAN
			count 1
		}
	}
}
state.vc4hdmi {
	control.1 {
		iface PCM
		name 'Playback Channel Map'
		value.0 0
		value.1 0
		value.2 0
		value.3 0
		value.4 0
		value.5 0
		value.6 0
		value.7 0
		comment {
			access read
			type INTEGER
			count 8
			range '0 - 36'
		}
	}
	control.2 {
		iface PCM
		name 'IEC958 Playback Mask'
		value ffffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
		comment {
			access read
			type IEC958
			count 1
		}
	}
	control.3 {
		iface PCM
		name 'IEC958 Playback Default'
		value '0400000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
		comment {
			access 'read write'
			type IEC958
			count 1
		}
	}
	control.4 {
		iface PCM
		name ELD
		value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
		comment {
			access 'read volatile'
			type BYTES
			count 128
		}
	}
}
--endcollapse--


!!All Loaded Modules
!!------------------

8021q
aes_arm64
backlight
bcm2835_codec
bcm2835_isp
bcm2835_mmal_vchiq
bcm2835_v4l2
bluetooth
bnep
brcmfmac
brcmutil
btbcm
cec
cfg80211
cmac
drm
drm_kms_helper
drm_panel_orientation_quirks
ecc
ecdh_generic
fb_sys_fops
fuse
garp
hci_uart
hid_logitech_dj
hid_logitech_hidpp
i2c_bcm2835
i2c_dev
ip_tables
ipv6
joydev
llc
mc
raspberrypi_hwmon
rfcomm
rfkill
snd
snd_aloop
snd_bcm2835
snd_compress
snd_hwdep
snd_pcm
snd_pcm_dmaengine
snd_rawmidi
snd_seq_device
snd_soc_core
snd_soc_hdmi_codec
snd_timer
snd_usb_audio
snd_usbmidi_lib
stp
syscopyarea
sysfillrect
sysimgblt
uio
uio_pdrv_genirq
v4l2_mem2mem
vc4
vc_sm_cma
videobuf2_common
videobuf2_dma_contig
videobuf2_memops
videobuf2_v4l2
videobuf2_vmalloc
videodev
x_tables


!!ALSA/HDA dmesg
!!--------------

[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 238896
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1  vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyS0,115200 console=tty1 root=PARTUUID=a8e0410b-02 rootfstype=ext4 fsck.repair=yes rootwait quiet
[    0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
--
[    7.725450] [vc_sm_connected_init]: installed successfully
[    7.746840] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    7.772232] bcm2835_audio bcm2835_audio: card created with 8 channels
[    7.784928] videodev: Linux video capture interface: v2.00
--
[    8.522273] usbcore: registered new interface driver brcmfmac
[    8.766635] usbcore: registered new interface driver snd-usb-audio
[    8.833209] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
--
[    8.914804] input: vc4 as /devices/platform/soc/3f902000.hdmi/rc/rc0/input8
[    8.917619] vc4_hdmi 3f902000.hdmi: Could not register sound card: -517
[    8.991600] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])
--
[    9.000301] input: vc4 as /devices/platform/soc/3f902000.hdmi/rc/rc0/input9
[    9.047407] vc4_hdmi 3f902000.hdmi: Could not register sound card: -517
[    9.182496] logitech-djreceiver 0003:046D:C534.0002: hiddev96,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-3f980000.usb-1.3/input1
--
[    9.279435] hid-generic 0003:046D:4091.0006: input,hidraw5: USB HID v1.11 Mouse [Logitech Wireless Mouse PID:4091] on usb-3f980000.usb-1.3/input1:2
[    9.280797] vc4_hdmi 3f902000.hdmi: Could not register sound card: -517
[    9.354010] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])
--
[    9.366791] input: vc4 as /devices/platform/soc/3f902000.hdmi/rc/rc0/input22
[    9.368225] vc4_hdmi 3f902000.hdmi: Could not register sound card: -517
[   10.593233] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])


!!Packages installed
!!--------------------

ii  alsa-utils                             1.1.8-2 rpt1                             armhf        Utilities for configuring and using ALSA