[Clam-devel] SMSSynthesis

[Pau Arumi]

I think it wold be more consistent and easier to implement if we
put this logic in the configuration.
I mean, the presence of audio-out port will depend on boolean
parameters on the configuration.
Agree, Xavier?

pau

En/na Xavier Amatriain ha escrit:
> That is exactly what I meant... only put in better words ;-) You got it!
> 
> Greg Kellum wrote:
>> Hi Xavier,
>>
>> I wasn't sure what you meant by "doing a consistency check to make 
>> sure whether the three output ports are connected or not."  And maybe 
>> what I am about to suggest is actually what you meant, but what do you 
>> think about checking inside the networked Do() whether all three ports 
>> are connected and only computing the IFFTs for those ports which are 
>> actually connected?  So, if only the sinuisuid + residual mixdown is 
>> connected one would only do one IFFT rather than three.
>>
>> Best,
>> Greg
>>
>> On 8/2/07, *Xavier Amatriain* <xavier at create.ucsb.edu 
>> <mailto:xavier at create.ucsb.edu>> wrote:
>>
>>     Greg,
>>
>>     The SMSSynthesis class performs 3 IFFTs (not 2) simply because it 
>> aims
>>     at outputing also 3 different audios (one for the residual,
>>     one for the sinusoidal, and one for the addition of both). If you are
>>     only interested in synthesizing the sum you should probably
>>     add a Do overload (another one!!! aaarghh!) and for the networked
>>     version (Do without params) do a consistency check to make
>>     sure whether the three output ports are connected or not.
>>
>>     But, again, it does not deal with different IFFT sizes. By the
>>     time the
>>     Spectrums are synthesized they should be the same size
>>     (because they have to be added for the complete synthesis among other
>>     things).
>>
>>     Xavier
>>
>>     Greg Kellum wrote:
>>     > Hi all,
>>     >
>>     > I've been doing some optimizing this week.  Trying to make the
>>     > application that I've been working on run faster.  And I've been
>>     > looking at the SMSSynthesis class and asking myself whether it is
>>     > really necessary for this class to perform two IFFTs.  Apparently,
>>     > SMSSythesis performs a separate IFFT for the sinusoidal peaks
>>     and the
>>     > residual, because it's possible that these two could use two
>>     different
>>     > IFFT sizes.  It would be nice if it only performed one IFFT in the
>>     > case that they both had the same size.  Um...  I have been
>>     looking at
>>     > the configuration file for SMSSynthesis trying to identify the
>>     > relevant configuration elements for IFFT size, but actually, I only
>>     > saw one configuration element for the IFFT size.  Um...  I've
>>     uploaded
>>     > an example configuration file to:
>>     > http://www.gregkellum.com/temp/synthesis.xml  Could someone tell me
>>     > what the relevant configuration elements are?
>>     >
>>     > Best,
>>     > Greg
>>     >
>>     
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