[Clam-devel] correction...

Greg Kellum greg.kellum at gmail.com
Thu Jul 3 03:41:53 PDT 2008


Hi,

Okay, actually, I didn't correct the score for the Sonata for Violin.
Listening to it now I realized that there are still some wild pitches
in it, but I should have...

Best,
Greg

On Thu, Jul 3, 2008 at 12:08 PM, Greg Kellum <greg.kellum at gmail.com> wrote:
> Hi Yushen,
>
> It sounds like you're having problems with transients...  When I
> generated that score for the violin sonata, I used a pitch tracker I
> had been working on earlier to generate the initial score, but then, I
> went back over it and made corrections to the score by hand.
> Sometimes when there were transitions between notes, there simply
> isn't any unambiguous pitch value, and if you force a pitch tracker to
> give you a value for those frames, it will make a mistake, right?
>
> I later added transient detection to the pitch tracker so if there was
> a big change in the pitch value and the aperiodicity of the signal
> jumped as well, then the new pitch value would be marked as a
> transient and suppressed.  You could do something like this in the
> synthesizer instead.  But the score generator has access to the
> original signal and can make a much better guess as to whether a frame
> is a transient than the synthesizer can.
>
> Best,
> Greg
>
>
> On Thu, Jul 3, 2008 at 12:23 AM, Han, Yushen <yushen.han at gmail.com> wrote:
>> Pau,
>>
>> So it is YES - my synthesizer should be able to play ANYTHING
>> indicated from the score.
>>
>> A difficulty is that I did not know how something that is arbitrarily
>> given in the score file should sound like.
>> The concept of a "note" which should last at least for 50ms, may not
>> apply anymore.
>>
>> But I can still make it work by SMS transformation. Let's hear how it
>> will sound...
>>
>> Han, Yushen
>>
>>
>> On Wed, Jul 2, 2008 at 6:17 PM, Pau Arumí Albó <parumi at iua.upf.edu> wrote:
>>> El dc 02 de 07 de 2008 a les 18:12 -0400, en/na Han, Yushen wrote:
>>>
>>>> Here I have a fundamental question about the purpose of this synthesizer:
>>>> Should the synthesizer be able to produce whatever the score indicates,
>>>> even if it is something a real instrument / human musician would not
>>>> be able to do?
>>>
>>> sure
>>>
>>>
>>
>




More information about the clam-devel mailing list