riff_chunk:
  chunk_id: "RIFF"
  chunk_size: 20
  wave_format: "WAVE"
format_chunk:
  chunk_id: "fmt "
  chunk_size: 16
  audio_format: 1
  channels: 2
  sample_rate: 44100
  byte_rate: 176400
  block_align: 4
  bits_per_sample: 16
