wavex v0.1.0 Wavex

Reading PCM WAVE files.

Link to this section Summary

Functions

Read a PCM WAVE file

Link to this section Types

Link to this type t()
t() :: %Wavex{
  data_chunk: Wavex.DataChunk.t(),
  format_chunk: Wavex.FormatChunk.t(),
  riff_header: Wavex.RIFFHeader.t()
}

Link to this section Functions

Link to this function read(binary)
read(binary()) :: {:ok, t()} | {:error, binary()}

Read a PCM WAVE file.

Examples

sapp.org, 2018-04-30, Microsoft WAVE soundfile format

iex Wavex.read(<<
...> # R     I     F     F
...>   0x52, 0x49, 0x46, 0x46,
...> # 38
...>   0x24, 0x08, 0x00, 0x00,
...> # W     A     V     E
...>   0x57, 0x41, 0x56, 0x45,
...> # f     m     t     \s
...>   0x66, 0x6d, 0x74, 0x20,
...> # 16
...>   0x10, 0x00, 0x00, 0x00,
...> # 1           2
...>   0x01, 0x00, 0x02, 0x00,
...> # 22050
...>   0x22, 0x56, 0x00, 0x00,
...> # 88200
...>   0x88, 0x58, 0x01, 0x00,
...> # 4           16
...>   0x04, 0x00, 0x10, 0x00,
...> # d     a     t     a
...>   0x64, 0x61, 0x74, 0x61,
...> # 2
...>   0x02, 0x00, 0x00, 0x00,
...> # 0
...>   0x00, 0x00, 0x00, 0x00,
...> # 0
...>   0x00, 0x00, 0x00, 0x00
...> >>)
{:ok,
%Wavex{
  data_chunk: %Wavex.DataChunk{
    data: <<0, 0, 0, 0, 0, 0, 0, 0>>,
    size: 2
  },
  format_chunk: %Wavex.FormatChunk{
    bits_per_sample: 16,
    block_align: 4,
    byte_rate: 88_200,
    channels: 2,
    sample_rate: 22_050
  },
  riff_header: %Wavex.RIFFHeader{size: 2084}
}}