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ITU-T SG12 C
ITU-T SG12
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Performance and quality of service
Study Period 2005
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5
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Contributions
[ Source: Federal Republic of Germany ] [ AI/Question: Q8/12 ]
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[ 182 ]
Provisional Equipment Impairment Factors Ie for the Narrow-band Adaptative Multi-Rate (AMR) Speech Codec
Federal Republic of Germany
Q8/12
2008-05-12
[ 181 ]
Extension of the methodology for the derivation of equipment impairment factors from subjective listening-only tests towards wideband speech codecs
Federal Republic of Germany; France Télécom R&D
Q8/12
2008-05-12
[ 104 ]
Derivation of Wideband Equipment Impairment Factors from Listening-only tests and Instrumental Models
Federal Republic of Germany
,
Japan
,
NTT
,
France Télécom
Q8/12
2007-09-21
[ 101 ]
+Add.1
Tests on overall quality as perceived by high frequency hearing impaired subscribers
Federal Republic of Germany
Q8/12
2007-09-21
[ 5 ]
Proposed Corrigendum to Rec. P.834
Federal Republic of Germany
Q8/12
2004-11-29
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5
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