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- This announcement has been posted to the following newsgroups:
- alt.comp.compression, comp.compression, alt.binaries.multimedia,
- comp.multimedia, alt.binaries.sounds.misc, de.alt.binaries.sounds
- last edit: 6/23/94 14:36:07
-
- Hi MPEG audio fans,
-
- I'd like to announce the second release of my free, software-only MPEG
- audio player maplay. Those of you who are already familiar with maplay 1.1
- may take a look at the list of changes in version 1.2:
- - required CPU time reduced by 50%
- - support of 16 bit soundcarts under Linux
- Implemented by Louis P. Kruger (lpkruger@phoenix.princeton.edu)
- - 8 kHz u-law realtime playback on amd devices (SPARC 2/IPX/...)
- or conversion to 8 kHz u-law to stdout
- Based on an implementation by Jim Boucher (jboucher@flash.bu.edu)
- - some bug-fixes (-u options, Solaris 2.3 problem, problems with older
- GNU C++ releases, makedepend usage removed)
-
- All in all version 1.2 is now capable of
- - playing MPEG audio layer I or II streams on SPARC 10 (SunOS 4.1.3 or
- Solaris 2.x), Silicon Graphics Indigo (IRIX 4.0.x or IRIX 5.x) and Linux
- machines in nearly CD-quality. On a SPARC 10/40, maplay needs about
- 46% CPU time for realtime stereo playback and 26% for mono playback.
- (maplay can't be compiled under IRIX 5.x because of the missing audio
- library, but an IRIX 4.0.5F binary works under IRIX 5.x, too)
- - playing these streams in 8 kHz u-law format on SPARC 2/IPX/...
- (SunOS 4.1.x) machines using the amd device. On a SPARCstation IPX,
- maplay needs about 43% CPU time for realtime mono playback.
- - decoding streams to raw 16 bit pcm format at the frequency of the stream
- (32, 44.1 or 48 kHz) or to 8 bit u-law format downsampled to 8 kHz.
-
- The C++ sourcecode of maplay 1.2 and a short layer II MPEG audio stream
- for testing purposes has been posted to alt.binaries.multimedia on 6/23/94.
-
- The sources and some binaries are available via the ftp server
- ftp.cs.tu-berlin.de in the directory incoming/maplay1.2
- It contains:
- -rw-r--r-- 1 bading doping 4290 Jun 23 14:20 ANNOUNCEMENT
- -rw-r--r-- 1 bading doping 95691 Jun 23 14:19 maplay1_2.tar.Z
- -rwxr-xr-x 1 bading doping 96497 Jun 22 12:30 maplay_indigo.Z*
- -rwxr-xr-x 1 bading doping 81469 Jun 22 12:12 maplay_sol2.Z*
- -rwxr-xr-x 1 bading doping 88881 Jun 22 12:17 maplay_sunos4_1_3.Z*
- -rwxr-xr-x 1 bading doping 93125 Jun 22 12:35 maplay_ulaw_sunos4_1_3.Z*
- -rw-r--r-- 1 bading doping 372821 Jun 23 12:16 things.mp2
-
- Due to slow Internet connections to this site, please use the mail server
- mail-server@cs.tu-berlin.de. Send an email to this address with the contents
- SEND incoming/maplay1.2/maplay1_2.tar.Z
- and you will receive a mail with an uuencoded copy of the requested file.
- Sending a mail containing "SEND help" returns a mail with more infos about
- this mail server.
-
- The available precompiled binaries are (in compressed format)
- - maplay_sunos4_1_3.Z
- for SPARCstations with a dbri device (e.g. SPARC 10, CD-quality)
- under SunOS 4.1.x (created under SunOS 4.1.3)
- - maplay_ulaw_sunos4_1_3.Z
- for SPARCstations with an amd device (e.g. SPARC 2 or IPX, telephone
- quality) under SunOS 4.1.x using 8 kHz u-law output
- (created under SunOS 4.1.3)
- - maplay_sol2.Z
- for SPARCstations with a dbri device (e.g. SPARC 10, CD-quality)
- under Solaris 2.x (created under Solaris 2.3 [= SunOS 5.3])
- - maplay_indigo.Z
- for Silicon Graphic Indigo machines (CD-quality)
- under IRIX 4.0.x or IRIX 5.x (created under IRIX 4.0.5F)
-
- To extract the source code, you may use "zcat maplay1_2.tar.Z | tar xvf -"
- or "uncompress maplay1_2.tar.Z ; tar xvf maplay1_2.tar". Please take a look
- at the README file next.
- For a binary, you may use "uncompress maplay_sunos4_1_3.Z".
-
- You may also take a look at the Internet Underground Music Archive (IUMA)
- ftp server sunsite.unc.edu (152.2.22.81) in the directory
- /pub/electronic-publications/IUMA/audio_utils/mpeg_players/Workstations
-
- If you are also looking for an encoder, please take a look at the file
- /pub/electronic-publications/IUMA/audio_utils/converters/source/mpegaudio.tar.Z
- on the IUMA ftp server. It contains sources for an encoder and a decoder.
-
- That's all for now,
- Tobias Bading (bading@cs.tu-berlin.de)
-