Speex dev - Jan 2009 - VQ: elucidations!

Dear Valin,
Please, can you explain me the mean of the routines' parameters:

1. void vq_nbest();

2. static void compute_weighted_codebook();

3. static inline void target_update();

4. void split_cb_search_shape_sign();

5. void split_cb_shape_sign_unquant();

6. void noise_codebook_quant();

7. void noise_codebook_unquant();

and what they do briefly???

It's very difficult understand a code written by another person!
I thank you in advance.

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Quoting Daniela Tedesco <dan.tedesco at studenti.unina.it>:
> Dear Valin,
> Please, can you explain me the mean of the routines' parameters:
>
> 1. void vq_nbest();
Nearest-neighbor VQ search that returns the N best entries instead of just the
best.
> 2. static void compute_weighted_codebook();
Applies the CELP weighting filter to the codebook entries. It's the weighted
version that is used in the search.
> 3. static inline void target_update();
Subtracts the contribution of the selected entry from the CELP target signal.
> 4. void split_cb_search_shape_sign();
That's the main innovation search function.
> 5. void split_cb_shape_sign_unquant();
Same as above, but decodes instead of encoding.
> 6. void noise_codebook_quant();
> 7. void noise_codebook_unquant();
Don't worry about those ones, they're only for very low rate.

  Jean-Marc

>
> and what they do briefly???
>
> It's very difficult understand a code written by another person!
> I thank you in advance.
>
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> This message was sent using IMP, the Internet Messaging Program.
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