Welcome to PulseAudio! Use "help" for usage information.
    index: 1
  name: <alsa_output.usb-YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em-00-default.analog-stereo>
  driver: <module-alsa-card.c>
  flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
  state: RUNNING
  suspend cause:
  priority: 9549
  volume: 0: 100% 1: 100%
          0: 0.00 dB 1: 0.00 dB
          balance 0.00
  base volume: 100%
               0.00 dB
  volume steps: 65537
  muted: no
  current latency: 28.18 ms
  max request: 3 KiB
  max rewind: 344 KiB
  monitor source: 2
  sample spec: s16le 2ch 44100Hz
  channel map: front-left,front-right
               Stereo
  used by: 1
  linked by: 3
  configured latency: 20.00 ms; range is 0.50 .. 2000.00 ms
  card: 1 <alsa_card.usb-YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em-00-default>
  module: 25
  properties:
    alsa.resolution_bits = "16"
    device.api = "alsa"
    device.class = "sound"
    alsa.class = "generic"
    alsa.subclass = "generic-mix"
    alsa.name = "USB Audio"
    alsa.id = "USB Audio"
    alsa.subdevice = "0"
    alsa.subdevice_name = "subdevice #0"
    alsa.device = "0"
    alsa.card = "1"
    alsa.card_name = "YAMAHA YST-M45D USB Speaker"
    alsa.long_card_name = "YAMAHA YAMAHA YST-M45D USB Speaker   at usb-0000:00:1d.7-7.1, full speed"
    alsa.driver_name = "snd_usb_audio"
    device.bus_path = "pci-0000:00:1d.7-usb-0:7.1:1.0"
    sysfs.path = "/devices/pci0000:00/0000:00:1d.7/usb1/1-7/1-7.1/1-7.1:1.0/sound/card1"
    udev.id = "usb-YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em-00-default"
    device.bus = "usb"
    device.vendor.id = "0499"
    device.vendor.name = "Yamaha Corp."
    device.product.id = "3003"
    device.product.name = "YST-M45D USB Speaker"
    device.serial = "YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em"
    device.form_factor = "speaker"
    device.string = "hw:1"
    device.buffering.buffer_size = "352800"
    device.buffering.fragment_size = "176400"
    device.access_mode = "mmap+timer"
    device.profile.name = "analog-stereo"
    device.profile.description = "Analog Stereo"
    device.description = "YST-M45D USB Speaker Analog Stereo"
    alsa.mixer_name = "USB Mixer"
    alsa.components = "USB0499:3003"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-speakers-usb"
>>>


[colin@jimmy ~]$ amixer -c1
Simple mixer control 'Bass',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 12
  Mono: 0 [0%]
Simple mixer control 'Treble',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 3
  Mono: 0 [0%]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 61
  Mono:
  Front Left: Playback 29 [48%] [-32.00dB] [on]
  Front Right: Playback 29 [48%] [-32.00dB] [on]
[colin@jimmy ~]$


Set the volume in pavcontrol.....


[colin@jimmy ~]$ pacmd list-sinks
    index: 1
  name: <alsa_output.usb-YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em-00-default.analog-stereo>
  driver: <module-alsa-card.c>
  flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
  state: RUNNING
  suspend cause:
  priority: 9549
  volume: 0: 100% 1: 100%
          0: 0.00 dB 1: 0.00 dB
          balance 0.00
  base volume: 100%
               0.00 dB
  volume steps: 65537
  muted: no
  current latency: 24.18 ms
  max request: 3 KiB
  max rewind: 344 KiB
  monitor source: 2
  sample spec: s16le 2ch 44100Hz
  channel map: front-left,front-right
               Stereo
  used by: 1
  linked by: 3
  configured latency: 20.00 ms; range is 0.50 .. 2000.00 ms
  card: 1 <alsa_card.usb-YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em-00-default>
  module: 25
  properties:
    alsa.resolution_bits = "16"
    device.api = "alsa"
    device.class = "sound"
    alsa.class = "generic"
    alsa.subclass = "generic-mix"
    alsa.name = "USB Audio"
    alsa.id = "USB Audio"
    alsa.subdevice = "0"
    alsa.subdevice_name = "subdevice #0"
    alsa.device = "0"
    alsa.card = "1"
    alsa.card_name = "YAMAHA YST-M45D USB Speaker"
    alsa.long_card_name = "YAMAHA YAMAHA YST-M45D USB Speaker   at usb-0000:00:1d.7-7.1, full speed"
    alsa.driver_name = "snd_usb_audio"
    device.bus_path = "pci-0000:00:1d.7-usb-0:7.1:1.0"
    sysfs.path = "/devices/pci0000:00/0000:00:1d.7/usb1/1-7/1-7.1/1-7.1:1.0/sound/card1"
    udev.id = "usb-YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em-00-default"
    device.bus = "usb"
    device.vendor.id = "0499"
    device.vendor.name = "Yamaha Corp."
    device.product.id = "3003"
    device.product.name = "YST-M45D USB Speaker"
    device.serial = "YAMAHA_YAMAHA_YST-M45D_USB_Speaker_Ser_00_em"
    device.form_factor = "speaker"
    device.string = "hw:1"
    device.buffering.buffer_size = "352800"
    device.buffering.fragment_size = "176400"
    device.access_mode = "mmap+timer"
    device.profile.name = "analog-stereo"
    device.profile.description = "Analog Stereo"
    device.description = "YST-M45D USB Speaker Analog Stereo"
    alsa.mixer_name = "USB Mixer"
    alsa.components = "USB0499:3003"
    module-udev-detect.discovered = "1"
    device.icon_name = "audio-speakers-usb"
>>>

[colin@jimmy ~]$ amixer -c1
Simple mixer control 'Bass',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 12
  Mono: 0 [0%]
Simple mixer control 'Treble',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 3
  Mono: 0 [0%]
Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 61
  Mono:
  Front Left: Playback 61 [100%] [0.00dB] [on]
  Front Right: Playback 61 [100%] [0.00dB] [on]