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Content for  TS 46.007  Word version:  18.0.0

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5 Test sequence format  6 Speech codec test sequences  7 DTX test sequences  8 Sequences for finding the 20 ms framing of the GSM half rate speech encoder  9 Trau Testing with 8 Bit A- and μ-law PCM Test Sequences  10 Test sequences for the GSM half rate speech codec  $ Change History 

 

5  Test sequence format  p. 7

5.1  File format  p. 7

5.2  Codec homing  p. 8

6  Speech codec test sequences  p. 8

6.1  Codec configuration  p. 8

6.2  Speech codec test sequences  p. 9

6.2.1  Speech encoder test sequences  p. 9

6.2.2  Speech decoder test sequences  p. 9

6.2.3  Codec homing sequence  p. 9

7  DTX test sequences  p. 10

7.1  Codec configuration  p. 10

7.2  DTX test sequences  p. 10

7.2.1  Predictor values computation  p. 10

7.2.2  Spectral comparison  p. 11

7.2.3  Threshold adaptation  p. 11

7.2.4  Periodicity detection  p. 11

7.2.5  Tone detection  p. 11

7.2.6  Safety and initialization  p. 11

7.2.7  Comfort noise test sequence  p. 11

7.2.8  Real speech and tones  p. 11

8  Sequences for finding the 20 ms framing of the GSM half rate speech encoder  p. 12

8.1  Bit synchronization  p. 12

8.2  Frame synchronization  p. 12

8.3  Formats and sizes of the synchronization sequences  p. 13

9  Trau Testing with 8 Bit A- and μ-law PCM Test Sequences  p. 14

10  Test sequences for the GSM half rate speech codec  p. 15

$  Change History  p. 16

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