11 Speech transmission functions of the half rate traffic channel
06.013GPPFull Rate Speech Processing FunctionsTS
The gross bit rate of the half rate speech traffic channel is 11,4 kbit/s. The algorithm for the half rate speech transcoder as well as the associated DTX functions are defined in GSM 06.02 [8], GSM 06.20 [9], GSM 06.21 [10], GSM 06.22 [11], GSM 06.41 [12] and GSM 06.42 [13].
Figure 1: Overview of audio processing functions
Annex A (informative):
Change Request History
Change history | |||||
SMG No. | TDoc. No. | CR. No. | Clause affected | New version | Subject/Comments |
SMG#07 | 4.0.5 | ETSI Publication | |||
SMG#20 | 5.0.1 | Release 1996 version | |||
SMG#23 | 97-737 97-741 | A004 A005 | 5.1.0 | UAP61 comments Introduction of Homing for Full Rate Speech Transcoding | |
SMG#23 | 5.1.1 | ETSI version change | |||
SMG#27 | 6.0.0 | Release 1997 version | |||
SMG#28 | P-99-136 | A006 | 5 and Figure 1 | 7.0.0 | Addition of mu-law (PCS 1900) |
7.0.2 | Update to Version 7.0.2 for Publication | ||||
SMG#31 | 8.0.0 | Version for Release 1999 | |||
8.0.1 | Update to Version 8.0.1 for Publication | ||||