Audio source that captures sound via multi-platform PortAudio library.

Element options

Passed via struct Membrane.PortAudio.Source.t/0

• device_id

  integer() | :default

  Default value: :default
  PortAudio device id. Defaults to the default input device.

  You can list available devices with mix pa_devices or Membrane.PortAudio.print_devices/0.

• endpoint_id

  nil

  Default value: nil
  Deprecated. Please use device_id instead.

• portaudio_buffer_size

  pos_integer()

  Default value: 256
  Size of the PortAudio buffer (in frames)

• latency

  :low | :high

  Default value: :high
  Latency of the input device

• sample_format

  sample_format()

  Default value: :s16le
  Sample format to output.

• sample_rate

  non_neg_integer()

  Default value: nil
  Sample rate to output.

  If not set, device's default sample rate will be used.

• channels

  1..2

  Default value: nil
  Number of channels to output.

  If not set, device's default will be used.

Pads

:output

Accepted formats:

%RawAudio{sample_format: format} when format in @sample_formats