null
    Discard all samples (playback) or generate zero samples (capture)
lavrate
    Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pulse
    PulseAudio Sound Server
upmix
    Plugin for channel upmix (4,6,8)
vdownmix
    Plugin for channel downmix (stereo) with a simple spacialization
usbstream:CARD=HDMI
    HDA Intel HDMI
    USB Stream Output
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3232 Analog
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3232 Analog
    Hardware device with all software conversions
default:CARD=PCH
    HDA Intel PCH, ALC3232 Analog
    Default Audio Device
sysdefault:CARD=PCH
    HDA Intel PCH, ALC3232 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3232 Analog
    Front output / input
dsnoop:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3232 Analog
    Direct sample snooping device
usbstream:CARD=PCH
    HDA Intel PCH
    USB Stream Output
hw:CARD=MV88,DEV=0
    Shure MV88+, USB Audio
    Direct hardware device without any conversions
plughw:CARD=MV88,DEV=0
    Shure MV88+, USB Audio
    Hardware device with all software conversions
default:CARD=MV88
    Shure MV88+, USB Audio
    Default Audio Device
sysdefault:CARD=MV88
    Shure MV88+, USB Audio
    Default Audio Device
front:CARD=MV88,DEV=0
    Shure MV88+, USB Audio
    Front output / input
dsnoop:CARD=MV88,DEV=0
    Shure MV88+, USB Audio
    Direct sample snooping device
usbstream:CARD=MV88
    Shure MV88+
    USB Stream Output