Automatic Sound Setup about windows-gaming HOT 2 OPEN

$ qemu-system-x86_64 -audio-help
Audio options:
  QEMU_AUDIO_DAC_FIXED_SETTINGS: boolean, default = 1
    Use fixed settings for host DAC
  QEMU_AUDIO_DAC_FIXED_FREQ: integer, default = 44100
    Frequency for fixed host DAC
  QEMU_AUDIO_DAC_FIXED_FMT: format, default = S16, (one of: U8 S8 U16 S16 U32 S32)
    Format for fixed host DAC
  QEMU_AUDIO_DAC_FIXED_CHANNELS: integer, default = 2
    Number of channels for fixed DAC (1 - mono, 2 - stereo)
  QEMU_AUDIO_DAC_VOICES: integer, default = 1
    Number of voices for DAC
  QEMU_AUDIO_DAC_TRY_POLL: boolean, default = 1
    Attempt using poll mode for DAC
  QEMU_AUDIO_ADC_FIXED_SETTINGS: boolean, default = 1
    Use fixed settings for host ADC
  QEMU_AUDIO_ADC_FIXED_FREQ: integer, default = 44100
    Frequency for fixed host ADC
  QEMU_AUDIO_ADC_FIXED_FMT: format, default = S16, (one of: U8 S8 U16 S16 U32 S32)
    Format for fixed host ADC
  QEMU_AUDIO_ADC_FIXED_CHANNELS: integer, default = 2
    Number of channels for fixed ADC (1 - mono, 2 - stereo)
  QEMU_AUDIO_ADC_VOICES: integer, default = 1
    Number of voices for ADC
  QEMU_AUDIO_ADC_TRY_POLL: boolean, default = 1
    Attempt using poll mode for ADC
  QEMU_AUDIO_TIMER_PERIOD: integer, default = 100
    Timer period in HZ (0 - use lowest possible)

Available drivers:
Name: spice
Description: spice audio driver
One playback voice
One capture voice
Options:

Name: pa
Description: http://www.pulseaudio.org/
Theoretically supports many playback voices
Theoretically supports many capture voices
Options:
  QEMU_PA_SAMPLES: integer, default = 4096
    buffer size in samples
  QEMU_PA_SERVER: string, default = (not set)
    server address
  QEMU_PA_SINK: string, default = (not set)
    sink device name
  QEMU_PA_SOURCE: string, default = (not set)
    source device name

Name: alsa
Description: ALSA http://www.alsa-project.org
Theoretically supports many playback voices
Theoretically supports many capture voices
Options:
  QEMU_ALSA_DAC_SIZE_IN_USEC: boolean, default = 0
    DAC period/buffer size in microseconds (otherwise in frames)
  QEMU_ALSA_DAC_PERIOD_SIZE: integer, default = 1024
    DAC period size (0 to go with system default)
  QEMU_ALSA_DAC_BUFFER_SIZE: integer, default = 4096
    DAC buffer size (0 to go with system default)
  QEMU_ALSA_ADC_SIZE_IN_USEC: boolean, default = 0
    ADC period/buffer size in microseconds (otherwise in frames)
  QEMU_ALSA_ADC_PERIOD_SIZE: integer, default = 0
    ADC period size (0 to go with system default)
  QEMU_ALSA_ADC_BUFFER_SIZE: integer, default = 0
    ADC buffer size (0 to go with system default)
  QEMU_ALSA_THRESHOLD: integer, default = 0
    (undocumented)
  QEMU_ALSA_DAC_DEV: string, default = default
    DAC device name (for instance dmix)
  QEMU_ALSA_ADC_DEV: string, default = default
    ADC device name

Name: sdl
Description: SDL http://www.libsdl.org
One playback voice
Does not support capture
Options:
  QEMU_SDL_SAMPLES: integer, default = 1024
    Size of SDL buffer in samples

Name: none
Description: Timer based audio emulation
Theoretically supports many playback voices
Theoretically supports many capture voices
No options

Name: wav
Description: WAV renderer http://wikipedia.org/wiki/WAV
One playback voice
Does not support capture
Options:
  QEMU_WAV_FREQUENCY: integer, default = 44100
    Frequency
  QEMU_WAV_FORMAT: format, default = S16, (one of: U8 S8 U16 S16 U32 S32)
    Format
  QEMU_WAV_DAC_FIXED_CHANNELS: integer, default = 2
    Number of channels (1 - mono, 2 - stereo)
  QEMU_WAV_PATH: string, default = qemu.wav
    Path to wave file

Options are settable through environment variables.
Example:
  export QEMU_AUDIO_DRV=wav
  export QEMU_WAV_PATH=$HOME/tune.wav
(for csh replace export with setenv in the above)
  qemu ...

QEMU_ALSA_ADC_BUFFER_SIZE=512 QEMU_ALSA_ADC_PERIOD_SIZE=170 QEMU_AUDIO_ADC_TRY_POLL=1 QEMU_AUDIO_ADC_FIXED_CHANNELS=1 QEMU_AUDIO_ADC_FIXED_FMT=U16 QEMU_AUDIO_ADC_FIXED_FREQ=48000 QEMU_AUDIO_ADC_FIXED_SETTINGS=1 QEMU_ALSA_DAC_BUFFER_SIZE=512 QEMU_ALSA_DAC_PERIOD_SIZE=170 QEMU_AUDIO_DAC_FIXED_FMT=U16 QEMU_AUDIO_DAC_FIXED_FREQ=48000 QEMU_AUDIO_DAC_FIXED_SETTINGS=1 QEMU_AUDIO_DRV=alsa