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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 (
   - 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 (
   - 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
     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
     (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-  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  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

 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

 You may also take a look at the Internet Underground Music  Archive  (IUMA)
 ftp  server ( in the directory /pub/electronic-

 If you are also looking for an encoder, please take  a  look  at  the  file
 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   (