Bus 001 Device 005: ID 1b3f:2007 Generalplus Technology Inc.

Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 30
  Mono:
  Front Left: Playback 27 [90%] [-4.50dB] [on]
  Front Right: Playback 27 [90%] [-4.50dB] [on]
Simple mixer control 'Mic',0
  Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: Playback 0 - 14 Capture 0 - 30
  Mono: Playback 0 [0%] [-12.00dB] [off] Capture 26 [87%] [27.00dB] [on]
Simple mixer control 'Auto Gain Control',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]

**** List of PLAYBACK Hardware Devices ****
card 0: Device [USB Audio Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: 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 1: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

pi@raspberrypi ~ $ aplay /usr/share/scratch/Media/Sounds/Vocals/Singer1.wav
Playing WAVE '/usr/share/scratch/Media/Sounds/Vocals/Singer1.wav' : Signed 16 bit Little Endian, Rate 11025 Hz, Mono
aplay: set_params:1087: Channels count non available

ps -edf | grep pulseaudio

pulseaudio -k

pulseaudio --start