playwav1

Usage

Overview

The playwav utility sends audio data from a wav file to a port.

Options

The following options are available:

--card number

Explicitly select the card to test. Default is card 0.

--port number

Explicitly select the port to test. Default is port 0 of the specified card.

--playgain db

Set the playback gain.

--recgain db

Set the recording gain. Only useful with the --rec option.

--dial digits

Dial the given digits during playback.

--ring

Wait for the line to ring before playing. Only useful for FXO ports.

--rec outfile

Record the incoming signal while playing. Useful for cut-through testing.

--loop

Enable tx->rx loopback. Useful for echo testing, but not supported for all hardware types.

--hostecho

Enable the host based echo canceller.