NAME¶
pacat - Play back or record raw or encoded audio streams on a PulseAudio sound
server
SYNOPSIS¶
paplay [options] [FILE]
parecord [
options] [FILE]
pacat [
options] [FILE]
parec [
options] [FILE]
pamon [
options] [FILE]
pacat --help
pacat --version
DESCRIPTION¶
pacat is a simple tool for playing back or capturing raw or encoded audio
files on a PulseAudio sound server.
OPTIONS¶
- -h | --help
- Show help.
- --version
- Show version information.
- -r | --record
- Capture audio data and write it to the specified file or to
STDOUT if none is specified. If the tool is called under the name
parec this is the default.
- -p | --playback
- Read audio data from the specified file or STDIN if none is
specified, and play it back. If the tool is called under the name
pacat this is the default.
- -v | --verbose
- Enable verbose operation. Dumps the current playback time
to STDERR during playback/capturing.
- -s | --server=SERVER
- Choose the server to connect to.
- -d | --device=SINKORSOURCE
- Specify the symbolic name of the sink/source to play/record
this stream on/from.
- -n | --client-name=NAME
- Specify the client name paplay shall pass to the
server when connecting.
- --stream-name=NAME
- Specify the stream name paplay shall pass to the
server when creating the stream.
- --volume=VOLUME
- Specify the initial playback volume to use. Choose a value
between 0 (silent) and 65536 (100% volume).
- --rate=SAMPLERATE
- Capture or play back audio with the specified sample rate.
Defaults to 44100 Hz.
- --format=FORMAT
- Capture or play back audio with the specified sample
format. Specify one of u8, s16le, s16be,
s32le, s32be, float32le, float32be,
ulaw, alaw, s32le, s32be, s24le,
s24be, s24-32le, s24-32be. Depending on the
endianness of the CPU the formats s16ne, s16re,
s32ne, s32re, float32ne, float32re,
s32ne, s32re, s24ne, s24re, s24-32ne,
s24-32re (for native, resp. reverse endian) are available as
aliases. Defaults to s16ne.
- --channels=CHANNELS
- Capture or play back audio with the specified number of
channels. If more than two channels are used it is recommended to use the
--channel-map option below. Defaults to 2.
- --channel-map=CHANNELMAP
- Explicitly choose a channel map when playing back this
stream. The argument should be a comma separated list of channel names:
front-left, front-right, mono, front-center,
rear-left, rear-right, rear-center, lfe,
front-left-of-center, front-right-of-center,
side-left, side-right, top-center,
top-front-center, top-front-left, top-front-right,
top-rear-left, top-rear-right, top-rear-center, or
any of the 32 auxiliary channel names aux0 to aux31.
- --fix-format
- If passed, the sample format of the stream is changed to
the native format of the sink the stream is connected to.
- --fix-rate
- If passed, the sampling rate of the stream is changed to
the native rate of the sink the stream is connected to.
- --fix-channels
- If passed, the number of channels and the channel map of
the stream is changed to the native number of channels and the native
channel map of the sink the stream is connected to.
- --no-remix
- Never upmix or downmix channels.
- --no-remap
- Never remap channels. Instead of mapping channels by their
name this will match them solely by their index/order.
- --latency=BYTES
- Explicitly configure the latency, with a time specified in
bytes in the selected sample format. If left out the server will pick the
latency, usually relatively high for power saving reasons. Use either this
option or --latency-msec, but not both.
- --latency-msec=MSEC
- Explicitly configure the latency, with a time specified in
milliseconds. If left out the server will pick the latency, usually
relatively high for power saving reasons. Use either this option or
--latency, but not both.
- --process-time=BYTES
- Explicitly configure the process time, with a time
specified in bytes in the selected sample format. If left out the server
will pick the process time. Use either this option or
--process-time-msec, but not both.
- --process-time-msec=MSEC
- Explicitly configure the process time, with a time
specified in miliseconds. If left out the server will pick the process
time. Use either this option or --process-time, but not both.
- --property=PROPERTY=VALUE
- Attach a property to the client and stream. May be used
multiple times
- --raw
- Play/record raw audio data. This is the default if this
program is invoked as pacat , parec or pamon
- --file-format[=FFORMAT]
- Play/record encoded audio data in the file format
specified. This is the default if this program is invoked as paplay and
parecord
- --list-file-formats
- List supported file formats.
AUTHORS¶
The PulseAudio Developers <pulseaudio-discuss (at) lists (dot) freedesktop
(dot) org>; PulseAudio is available from
http://pulseaudio.org/
SEE ALSO¶
pulseaudio(1),
pactl(1)