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Discussion Groups | Speech Coding | Regarding G 728

Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)

  

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Regarding G 728 - Adithya k - Mar 13 10:38:00 2004



Hii All,

  I am working G 728 encoder. In the target signal normalization the target signal is multiplied with 1 / gain. But accoriding to the test vector given by ITU we won't get the normalized target vector if we multiply the gain and the target vector(Block 16).  The gain is obtained from block 48 and the target vector from block 11. If we compare with the normailized gain with vector given by itu(targetn.bf) it is not matching, even the target signal(target.q2) and gain(gain.sf and gaininv.sf) matches.

Please any one explain this.

Adithya.K





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