Thank you.
在 2013-02-15 20:10:59，"Heiga ZEN (Byung Ha CHUN)" <heigazen@xxxxxxxxxx> 写道：
>Hi,
>
>2013/2/15 那兴宇 <nxy-yzqs@xxxxxxx>:
>
>> I ran some artificial data for calculating WUW matrix, in matlab.
>> In the HTS codes, the 'wuw' matrix is set length*width, and
>> width=2*max_width+1.
>> By default, width=3, so 'wuw' is a TX3 matrix.
>> By observing the data in matlab, I found that the number of non-zero
>> elements in each row of WUW is 5, but the matrix is symmetrical, so is it
>> the reason why 'wuw' was set to restore only the upper or lower block of the
>> complete matrix WUW?
>
>Yes.
>
>> And was the Cholesky decomposition and following substitutions specially
>> implemented for this data structure?
>
>Yes.
>
>Heiga
>
>> At 2013-02-15 01:25:47,"Heiga ZEN (Byung Ha CHUN)" <heigazen@xxxxxxxxxx>
>> wrote:
>>>They are the same. However, to avoid confusions, I recommend you to use
>>>
>>>5 1.0 1.0 [-2.0] 1.0 0.0
>>>
>>>for this case.
>>>
>>>I personally think that it was my mistake to introduce the following code.
>>>
>>> if (fsize % 2 == 0)
>>> win->r_width[i]--;
>>>
>>>Regards,
>>>
>>>Heiga
>>>
>>>
>>>2013/2/14 那兴宇 <nxy-yzqs@xxxxxxx>:
>>>> Hi all,
>>>>
>>>> In current MLPG implementations, either HMGenS or hts_engine_API, the
>>>> default dynamic window is symmetrical.
>>>> But I wonder what would happen if I set unsymmetrical window.
>>>> So I checked the HGen(in HTS-2.2) and HTS_model(in hts_engine_API-1.06),
>>>> found similar codes below;
>>>> + /* set pointer */
>>>> + length = fsize / 2;
>>>> + win->coefficient[i] += length;
>>>> + win->l_width[i] = -length;
>>>> + win->r_width[i] = length;
>>>> + if (fsize % 2 == 0)
>>>> + win->r_width[i]--;
>>>>
>>>> I suppose it means I can set unsymmetrical window like
>>>> + 4 1.0 1.0 [-2.0] 1.0
>>>> with '-2.0' be the coeff. for current frame, right?
>>>> But what if I set
>>>> + 5 1.0 1.0 [-2.0] 1.0 0.0
>>>> as unsymmetrical window in a symmetrical form? Is it the same?
>>>> Please drop in any opinion.
>>>> Thank you.
>>>>
>>>> Best,
>>>> --
>>>> Xingyu Na (那兴宇)
>>>> http://www.idiap.ch/~xna/
>>>> Beijing Institute of Technology [naxy(at)bit.edu.cn]
>>>> Idiap Research Institute [xingyu.na(at)idiap.ch]
>>>>
>>>
>>>
>>>
>>>--
>>>Heiga ZEN (in Japanese)
>>>Byung Ha CHUN (in Korean)
>>><heigazen@xxxxxxxxxx>
>>>
>
>
>
>--
>Heiga ZEN (in Japanese)
>Byung Ha CHUN (in Korean)
><heigazen@xxxxxxxxxx>
>