Linux temps réel embarqué et outils de développements Technique


libgsm1 Shared libraries for GSM speech compressor
Installed size 120
Maintainer Jochen Friedrich <jochen@scram.de>
Architecture i386
Version 1.0.10-13
Depends libc6 (>= 2.3.2.ds1-4)
Suggests gsl-ref-psdoc | gsl-doc-pdf | gsl-ref-html
File name pool/main/libg/libgsm/libgsm1_1.0.10-13_i386.deb
Description 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 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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