Wave out supported formats.

enum TWaveOutFormat {
  format_invalid = 0,
  format_11khz_8bit_mono = 1,
  format_11khz_8bit_stereo = 2,
  format_11khz_16bit_mono = 4,
  format_11khz_16bit_stereo = 8,
  format_22khz_8bit_mono = 16,
  format_22khz_8bit_stereo = 32,
  format_22khz_16bit_mono = 64,
  format_22khz_16bit_stereo = 128,
  format_44khz_8bit_mono = 256,
  format_44khz_8bit_stereo = 512,
  format_44khz_16bit_mono = 1024,
  format_44khz_16bit_stereo = 2048
};