GSM SPEECH CODING
GSM Glossary
GSM — GSM Speech Coding
Information on Speech Coding
The GSM speech coder compresses digital voice signals arriving at
8000 samples / s to a 13-kbit / s signal.
The
compression algorithm is Regular Pulse Excitation - Long Term prediction
- Linear Predictive Coder (RTE/LTP).
Channel coding is then applied
to the speech bitstream.
The theoretical minimum delay of the GSM
speech coding is 20 ms. The standard requires that
the transcoder delay be less than 30 ms.
Other topics in our resources on GSM related to GSM Speech Coding include:
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