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[ Källkod: libgsm  ]

Paket: libgsm1-dev (1.0.13-4)

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Development libraries for a GSM speech compressor

This package contains header files and development 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.

Märken: Software Development: C Development, Bibliotek, Implemented in: C, Network Protocol: protocol::voip, role::devel-lib, Sound and Music: Compression, Talsyntes, Works with: Audio

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Arkitektur Paketstorlek Installerad storlek Filer
amd64 34,4 kbyte142,0 kbyte [filförteckning]
armel 36,0 kbyte124,0 kbyte [filförteckning]
armhf 33,7 kbyte113,0 kbyte [filförteckning]
i386 34,9 kbyte145,0 kbyte [filförteckning]
ia64 54,4 kbyte184,0 kbyte [filförteckning]
kfreebsd-amd64 34,4 kbyte103,0 kbyte [filförteckning]
kfreebsd-i386 35,1 kbyte106,0 kbyte [filförteckning]
mips 41,2 kbyte142,0 kbyte [filförteckning]
mipsel 41,3 kbyte142,0 kbyte [filförteckning]
powerpc 36,6 kbyte122,0 kbyte [filförteckning]
s390 40,4 kbyte136,0 kbyte [filförteckning]
s390x 42,4 kbyte152,0 kbyte [filförteckning]
sparc 40,5 kbyte136,0 kbyte [filförteckning]