NAME
maplay - play a layer I layer II or layer III MPEG audio stream
SYNOPSIS
maplay [-v] [-s] [-l] [-r] [-us] [-uh] [-ul] [-amd] [-c] [-f ushort ] filename
DESCRIPTION
The maplay program decodes layer I, II, and III MPEG audio streams and plays them using a CD-quality audio device. It supports all modes, which are single channel, stereo, joint stereo and dual channel, and all bitrates except free mode.
OPTIONS
- filename
-
filename of a MPEG audio stream or - for stdin
- -h
-
short help
- -v
-
verbose mode - Returns information about the stream, like mode, bitrate, and copyright.
- -s
-
stdout mode - Decodes the stream to stdout. The created output contains 16 bit
- -l
-
Decodes (and plays) the left channel of stereo streams only. This option halves the required CPU time.
- -r
-
Same as -l , but decodes the right channel only
- -ul
-
This option is available on machines with the dbri device and sends the audio output to the line out jack.
- -amd
-
Forces maplay to treat /dev/audio as an amd device. Use it if your SPARC clone has an amd device, but maplay doesn't recognize it. This option may also be used on a machine with a dbri device, because the dbri device can also produce u-law output.
- -c
-
Reports filter range violations to stderr. Sometimes PCM values calculated by the synthesis filter exceed the 16 bit boundary and must be mapped to these boundaries.
- -f ushort
-
Use this scalefactor instead of the default value 32768 for the synthesis filter. Range violations can be reduced or eliminated with this option, but lower scalefactor values reduce the signal-to-noise ratio, too.
COPYRIGHT
Copyright (C) 1993, 1994 Tobias Bading
Optimizing Layer III routines Copyright (C) 1996, 1997 Jeff Tsay ([email protected]).
Playlists and integrating Layer III routines from Maplay 1.2+ 1.80 for Windows Copyright (C) 1996, 1997 Timo Jantunen ([email protected]).
AUTHORS
Tobias Bading, Jeff Tsay, and Timo Jantunen
DEBIAN MAINTAINER
Brian Mays <[email protected]>