Download Source Package libgsm:
This package contains user binaries for libgsm, 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.
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| Architecture | Version | Package Size | Installed Size | Files |
|---|---|---|---|---|
| alpha | 1.0.13-3 | 40.7 kB | 184 kB | [list of files] |
| amd64 | 1.0.13-3 | 41.6 kB | 184 kB | [list of files] |
| armel | 1.0.13-3 | 20.1 kB | 172 kB | [list of files] |
| avr32 (unofficial port) | 1.0.13-2 | 18.1 kB | 160 kB | [list of files] |
| hppa | 1.0.13-3 | 42.2 kB | 184 kB | [list of files] |
| hurd-i386 | 1.0.13-3 | 19.6 kB | 172 kB | [list of files] |
| i386 | 1.0.13-3 | 19.8 kB | 172 kB | [list of files] |
| ia64 | 1.0.13-3 | 47.4 kB | 220 kB | [list of files] |
| kfreebsd-amd64 | 1.0.13-3 | 41.6 kB | 142 kB | [list of files] |
| kfreebsd-i386 | 1.0.13-3 | 19.8 kB | 130 kB | [list of files] |
| m68k (unofficial port) | 1.0.12-1 | 18.8 kB | 172 kB | [list of files] |
| mips | 1.0.13-3 | 38.6 kB | 184 kB | [list of files] |
| mipsel | 1.0.13-3 | 38.7 kB | 184 kB | [list of files] |
| powerpc | 1.0.13-3 | 44.8 kB | 184 kB | [list of files] |
| s390 | 1.0.13-3 | 43.0 kB | 184 kB | [list of files] |
| sparc | 1.0.13-3 | 39.9 kB | 172 kB | [list of files] |