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Research > On 24/03/2005

Last modified: March 24 2005.

This is the first repository that we have created by using VoX 0.0.1 with some modifications. The modifications include removing square roots in clustering, and using floats throughout instead of doubles. We are still using long integers in the codefile representation. Moving to short integers will reduce the bandwidth requirements by a factor of 2.


Training File Parameters
Training file size Sampling rate Sample size Number of Channels Compression type used
~ 15 Minutes 8000 Hz 16 bits 1 PCM


Repository Parameters
Repository Number Number of Clusters Frame length MFCC features used Number of Iterations Size of repository obtained Time required to generate repository
1 10000 20 milliseconds 0,1,2,3,4,5,6,7,8,9,10,11 6 ~ 14 MB ~ 486 minutes
2 13000 20 milliseconds 0,1,2,3,4,5,6,7,8,9,10,11 6 ~ 14 MB ~ 636 minutes


Message Parameters
Using Repository Where is the message from Length of message file Length of coded file PESQ
1 out repository ~ 1.9 MB ? 0.331
1 in repository ~ 250 KB ? 0.887
2 in repository ~ 250 KB ? 0.636