gsm: GSM (A GSM speech compressor) gsm: gsm: This package contains runtime shared library and user binaries of GSM, gsm: an implementation of the European GSM 06.10 provisional standard for gsm: full-rate speech transcoding, prI-ETS 300 036, which uses RPE/LTP gsm: (residual pulse excitation/long term prediction) coding at 13 kbit/s. gsm: GSM 06.10 compresses frames of 160 13-bit samples (8 kHz sampling rate, gsm: i.e. a frame rate of 50 Hz) into 260 bits; for compatibility with gsm: typical UNIX applications, our implementation turns frames of 160 gsm: 16-bit linear samples into 33-byte frames (1650 Bytes/s). The quality gsm: of the algorithm is good enough for reliable speaker recognition; even gsm: music often survives transcoding in recognizable form (given the gsm: bandwidth limitations of 8 kHz sampling rate). gsm: The interfaces offered are a front end modelled after compress(1), and gsm: a library API. Compression and decompression run faster than realtime gsm: on most SPARCstations. The implementation has been verified against gsm: the ETSI standard test patterns. gsm: gsm: Packaged by Georgi D. Sotirov