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PK ���[���3� � MACHINESnu �[��� The gsm library has been tested successfully on the following platforms: - Various Sun4s running SunOS 4.1.2 - SPARC1 (SunOS 4.1.1) - Integrated Solutions 68k Optimum running 4.3BSD UNIX with a Green Hills cc - NeXTstation running NeXT-OS/Mach 3.0 - No-name AT/386 with Xenix 2.3.2 (using -DSTUPID_COMPILER) - RS/6000-350 running AIX 3.2.0 - RS/6000-320 running AIX 3.1.5 - Alliant FX80 (Concentrix 5.7) - SGI Indigo XS4000 (IRIX 4.0.5F) PK ���[��� � READMEnu �[��� GSM 06.10 13 kbit/s RPE/LTP speech compression available -------------------------------------------------------- The Communications and Operating Systems Research Group (KBS) at the Technische Universitaet Berlin is currently working on a set of UNIX-based tools for computer-mediated telecooperation that will be made freely available. As part of this effort we are publishing an implementation of the European GSM 06.10 provisional standard for full-rate speech transcoding, prI-ETS 300 036, which uses RPE/LTP (residual pulse excitation/long term prediction) coding at 13 kbit/s. GSM 06.10 compresses frames of 160 13-bit samples (8 kHz sampling rate, i.e. a frame rate of 50 Hz) into 260 bits; for compatibility with typical UNIX applications, our implementation turns frames of 160 16-bit linear samples into 33-byte frames (1650 Bytes/s). The quality of the algorithm is good enough for reliable speaker recognition; even music often survives transcoding in recognizable form (given the bandwidth limitations of 8 kHz sampling rate). The interfaces offered are a front end modelled after compress(1), and a library API. Compression and decompression run faster than realtime on most SPARCstations. The implementation has been verified against the ETSI standard test patterns. Jutta Degener (then jutta@cs.tu-berlin.de, nowadays jutta@pobox.com) Carsten Bormann (then cabo@cs.tu-berlin.de, nowadays cabo@tzi.org) Communications and Operating Systems Research Group, TU Berlin Fax: +49.30.31425156, Phone: +49.30.31424315 -- Copyright 1992 by Jutta Degener and Carsten Bormann, Technische Universitaet Berlin. See the accompanying file "COPYRIGHT" for details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. PK ���[J.]y� � ChangeLognu �[��� Fri Mar 27 15:18:06 2020 * Release 1.0 Patchlevel 19 Make it easier to include gsm.h from C++ by wrapping it with macros. Throw a #define _POSIX_C_SOURCE 200809L into toast.h to make it possible for Linux glibc to just work. (Thanks to enh@google.com for the suggestion; errors are mine.) Switch from compress/.Z to gzip/.gz Sat May 5 21:48:20 2018 * Release 1.0 Patchlevel 18 Remove the MacOS "quarantine" files that I didn't know I'd shipped. Remove some trailing spaces. Bump up the patchlevel in inc/gsm.h (I'd forgotten that in release 17.) Tue Jun 27 17:59:30 2017 * Release 1.0 Patchlevel 17 New email addresses in the README. Avoid left-shifting signed integers. Don't print longwords using %d or %ld, cast them to (long) first. Don't compare longwords as longs in addtest, we only care for the lower 32 bits. (The math works, but the test failed.) Sat Sep 17 14:50:55 2016 * Release 1.0 Patchlevel 16 New email addresses in the manual pages (patch 16) Removed a stray .orig file (in patch 15) Sun Apr 5 04:53:07 2009 Jutta Degener (jutta@pobox.com) * Release 1.0 Patchlevel 13 COPYRIGHT: exploring the deeper meaning and cultural history of the word "any". Fri Jun 2 06:27:56 2006 Jutta Degener (jutta@pobox.com) * Release 1.0 Patchlevel 12 src/code.c: removed modifiable static storage that made the library non-reentrant. (Thanks to Paul Gibbs for pointing out the bug.) Sat Mar 18 11:48:28 2006 Jutta Degener (jutta@pobox.com) * Release 1.0 Patchlevel 11 src/gsm_implode.c: fix WAV49 implode move source archive location Fri Jul 5 19:26:37 1996 Jutta Degener (jutta@cs.tu-berlin.de) * Release 1.0 Patchlevel 10 src/toast_alaw.c: exchanged A-law tables for something slightly more A-law. Tue Jul 2 12:18:20 1996 Jutta Degener (jutta@cs.tu-berlin.de) * Release 1.0 Patchlevel 9 src/long_term.c: in FLOAT_MUL mode, an array was accessed past its end src/gsm_option.c: three options related to WAV #49 packing src/gsm_encode.c: support WAV #49-style encoding. src/gsm_decode.c: support WAV #49-style decoding. tls/sour.c: generate the WAV bit shifting code, encode tls/ginger.c: generate the WAV bit shifting code, decode The WAV code goes back to an inofficial patch #8 that Jeff Chilton sent us (hence the jump from 7 to 9). src/toast.c: add _fsetmode() calls to set stdin/stdout to binary (from an OS/2 port by Arnd Gronenberg.) Tue Mar 7 01:55:10 1995 Jutta Degener (jutta@cs.tu-berlin.de) * Release 1.0 Patchlevel 7 src/long_term.c: Yet another 16-bit overflow src/toast.c: -C option to toast, cuts LPC time src/gsm_option.c: corresponding LPC_CUT option to GSM library Fri Dec 30 23:33:50 1994 Jutta Degener (jutta@cs.tu-berlin.de) * Release 1.0 Patchlevel 6 src/lpc.c: fixed 16-bit addition overflow in Autocorrelation code src/add.c: gsm_L_asl should fall back on gsm_L_asr, not gsm_asr Mon Nov 28 20:49:57 1994 Jutta Degener (jutta@cs.tu-berlin.de) * Release 1.0 Patchlevel 5 src/toast_audio.c: initialization should return -1 on error src/gsm_destroy.c: #include configuration header file src/add.c: gsm_sub should cast its parameters to longword man/*: bug reports to {jutta,cabo}@cs.tu-berlin.de, not to toast@tub inc/private.h: longword long by default, not int inc/toast.h: read/write fopen modes "rb" and "wb", not just "r" src/toast.c: better (or different, anyway) error handling in process() Tue May 10 19:41:34 1994 Jutta Degener (jutta at kugelbus) * Release 1.0 Patchlevel 4 inc/private.h: GSM_ADD should cast to ulongword, not to unsigned. src/long_term.c: missing cast to longword. add-test/add_test.c: Test macros too, not only functions, thanks to Simao Ferraz de Campos Neto, simao@dragon.cpqd.ansp.br General cleanup: remove unused variables, add function prototypes. Tue Jan 25 22:53:40 1994 Jutta Degener (jutta at kugelbus) * Release 1.0 Patchlevel 3 changed rpe.c's STEP macro to work with 16-bit integers, thanks to Dr Alex Lee (alexlee@solomon.technet.sg); removed non-fatal bugs from add-test.dta, private.h and toast_audio.c, thanks to P. Emanuelsson. Fri Jan 29 19:02:12 1993 Jutta Degener (jutta at kraftbus) * Release 1.0 Patchlevel 2 fixed L_add(0,-1) in src/add.c and inc/private.h, thanks to Raphael Trommer at AT&T Bell Laboratories; various other ANSI C compatibility details Fri Oct 30 17:58:54 1992 Jutta Degener (jutta at kraftbus) * Release 1.0 Patchlevel 1 Switched uid/gid in toast's [f]chown calls. Wed Oct 28 14:12:35 1992 Carsten Bormann (cabo at kubus) * Release 1.0: released Copyright 1992 by Jutta Degener and Carsten Bormann, Technische Universitaet Berlin. See the accompanying file "COPYRIGHT" for details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. PK [)"\�$�� � COPYRIGHTnu �[��� Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann, Technische Universitaet Berlin Any use of this software is permitted provided that this notice is not removed and that neither the authors nor the Technische Universitaet Berlin are deemed to have made any representations as to the suitability of this software for any purpose nor are held responsible for any defects of this software. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. As a matter of courtesy, the authors request to be informed about uses this software has found, about bugs in this software, and about any improvements that may be of general interest. Berlin, 28.11.1994 Jutta Degener Carsten Bormann oOo Since the original terms of 15 years ago maybe do not make our intentions completely clear given today's refined usage of the legal terms, we append this additional permission: Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that this notice is not removed and that neither the authors nor the Technische Universitaet Berlin are deemed to have made any representations as to the suitability of this software for any purpose nor are held responsible for any defects of this software. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. Berkeley/Bremen, 05.04.2009 Jutta Degener Carsten Bormann PK ���[���3� � MACHINESnu �[��� PK ���[��� � � READMEnu �[��� PK ���[J.]y� � � ChangeLognu �[��� PK [)"\�$�� � � COPYRIGHTnu �[��� PK �!
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