+++ /dev/null
-
-GSM 06.10 13 kbit/s RPE/LTP speech compression available
---------------------------------------------------------
-
-The Communications and Operating Systems Research Group (KBS) at the
-Technische Universitaet Berlin is currently working on a set of
-UNIX-based tools for computer-mediated telecooperation that will be
-made freely available.
-
-As part of this effort we are publishing 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.
-
-Jutta Degener (jutta@cs.tu-berlin.de)
-Carsten Bormann (cabo@cs.tu-berlin.de)
-
-Communications and Operating Systems Research Group, TU Berlin
-Fax: +49.30.31425156, Phone: +49.30.31424315
-
---
-Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
-Universitaet Berlin. See the accompanying file "COPYRIGHT" for
-details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
projects / debian / gnuradio / blobdiff