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Shared libraries for GSM speech compressor

Contains runtime shared libraries 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 162 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.

Package version:1.0.12

Browse inside gsm-1.0.12-4.el4.src.rpm

60.70 KB2014-11-29gsm-1.0.12.tar.gz  view  245+ mirrors
524 B2014-11-29gsm-64bit.patch  view  7 mirrors
3.13 KB2014-11-29gsm-makefile.patch  view  4 mirrors
6.19 KB2014-11-29gsm.spec  view  2 mirrors
1.24 KB2014-11-29gsm-warnings.patch  view  3 mirrors
1.58 KB2014-11-29HEADER  view  12 mirrors

Download gsm-1.0.12-4.el4.src.rpm

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