tech-invite   World Map     

3GPP     Specs     Glossaries     Architecture     IMS     UICC       IETF     RFCs     Groups     SIP     ABNFs       Search

Top        in Index        Prev        Next

TR 46.055 (SA4)
Performance characterization of the
GSM Enhanced Full Rate (EFR) speech codec

|   ToC   |   3GPP‑Page   |   ETSI‑search   |   Help   |

(P) V14.0.0    2017/03    28 p.
(P) V13.0.0    2015/12    28 p.
(P) V12.0.0    2014/09    28 p.
(P) V11.0.0    2012/09    27 p.
(P) V10.0.0    2011/04    27 p.
(P) V9.0.0    2009/12    27 p.
(P) V8.0.0    2008/12    27 p.
(P) V7.0.0    2007/06    27 p.
(P) V6.0.0    2005/01    27 p.
(P) V5.0.0    2002/06    27 p.
(P) V4.0.0    2001/04    27 p.
(P) GSM Rel-99 v8.0.0    2000/02    14 p.
(P) GSM Rel-98 v7.0.0    1999/06    14 p.
(P) GSM Rel-97 v6.0.0    1998/10    14 p.
(W-zip) GSM Rel-96 v5.0.0    1996/06    15 p.
(P) GSM Phase-2 v4.0.0    1997/06    13 p.


Rapporteur:  Mr. Usai, Paolino
Antecedent:  TR 06.55    


This TR gives background information on the performance of the GSM enhanced full rate speech codec. Experimental results from the Pre-selection and Verification tests carried out during the standardization process by the SEG (Speech Expert Group) are reported to give a more detailed picture of the behaviour of the GSM enhanced full rate speech codec under different conditions of operation.



 

Here        Top

 

 

1   Scope   PDF-p. 7
2   References
3   Abbreviations
4   Quality under error (EP0 - EP3) and tandeming conditions (Exp Number 1 and Exp Number 5)   PDF-p. 8
5   Quality under background noise conditions (Exp Number 2 and Exp Number 3)   PDF-p. 9
6   Talker dependency (Exp Number 4)
7   DTX system
8   Performance with DTMF tones
9   Network information tones   PDF-p. 12
10   Performance with special input signals
11   Performance with different languages
12   Delay   PDF-p. 14
13   Frequency response   PDF-p. 17
14   Complexity   PDF-p. 18
15   Summary of the results from the subjective testing   PDF-p. 19
A   Summary of results (lab by lab)   PDF-p. 21
B   Change history   PDF-p. 25

Up        Top