AIX Open Source Packages

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 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.

The library is available as 32-bit and 64-bit:

If you are compiling a 32-bit program, no special compiler options are needed.
If you are compiling a 64-bit program, you have to compile and link your application with "cc -q64" or "gcc -maix64".

Homepage: http://kbs.cs.tu-berlin.de/~jutta/toast.html

Version: 1.0.13-1

Downloads

RPM:

Source RPM:

gsm-1.0.13-1.src.rpm

Package dependencies:

none

All versions: