libgsm-tools binary package in openKylin Yangtze V1.0 rv64g
This package contains user binaries 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, this 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.
Publishing history
Date | Status | Target | Component | Section | Priority | Phased updates | Version | ||
---|---|---|---|---|---|---|---|---|---|
2023-11-19 12:55:36 UTC | Published | openKylin Yangtze V1.0 rv64g | release | main | sound | Optional | 1.0.18-ok1 | ||
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