5 EVS Codec DTX Operation
26.4503GPPCodec for Enhanced Voice Services (EVS)Discontinuous Transmission (DTX)Release 17TS
5.1 Transmit (TX) side
There are two algorithms for extending the DTX hangover period. One is a general hangover algorithm and other is specific to music. Both are defined in clause 5.1.12.5 of TS 26.445 [2].
The main specification of the DTX/CNG algorithms is contained in clause 5.6 of TS 26.445 [2].
The bit allocation of SID frames generated for DTX operation is defined in clause 7.2 of TS 26.445 [2].
5.2 Receive (RX) side
Operation of the EVS decoder, including decoding of SID frames generated during DTX operation is described in clause 6.7 of TS 26.445 [2].
Annex A (informative):
Change history
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Change history |
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Date |
TSG # |
TSG Doc. |
CR |
Rev |
Subject/Comment |
Old |
New |
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2014-09 |
65 |
SP-140465 |
Presented at TSG#65 for approval |
1.0.0 |
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2014-09 |
65 |
Approved at TSG SA#65 |
1.0.0 |
12.0.0 |
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2015-12 |
70 |
Version for Release 13 |
12.0.0 |
13.0.0 |
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Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2017-03 |
75 |
Version for Release 14 |
14.0.0 |
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2018-06 |
80 |
Version for Release 15 |
15.0.0 |
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2019-03 |
83 |
SP-190036 |
0001 |
– |
B |
Addition of reference to Alt_FX_EVS implementation |
16.0.0 |
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2022-04 |
– |
– |
– |
– |
– |
Update to Rel-17 version (MCC) |
17.0.0 |