|
Hi John,
It seems i can always rely on you for a short & targetted response to many
of my noise resynthesis dilemmas! So I thank you very much once gain.
the short answer to your Loris suggestion is, unfortunately, "yes", & "no" ;
) (nothings ever simple with me is it?)
couldn't find Loris opcodes in my csound 5.06 install at all, & ran into
some problems as outlined a few months back in this thread (basically the
Python Loris code is for 2.4 not 2.5 (?), & my csound build has no loris
opcodes..... other than that, no problems! ; ) ...)
http://www.nabble.com/Loris-in-5.06-tf3957656.html#a11229942
see also
http://www.nabble.com/Loris-vs-ATS-tf3957942.html#a11234652
for parrallel loris vs ATS musings....
so i'm back on the same trajectory here, more or less - wanting to perform
an additive style of synthesis that combines pure sines with bandwidth
enhanced partials, but in such a way that the line between analysis data &
"purely fictional" data can be mixed & matched (& modulated) easily - more
or less emulating what i do with my "PVOC tides" but in a more targetted
way.
I'm also keen (by using an additive rather than a PVOC approach) to enable /
experiment with some sort of interpolation of partial ratios & noiseband
details between analysis of instruments & sounds at different frequencies,
so that i can create a complete instrument range spread quickly & easily.
(like you would create "keyboard spread DX / FM parameter settings for
example)
doing this with PVOC opcodes may be possible (PVS morph or other similar,
writing this from memory) - the "problem" there however is i use SPEAR to
target key partial bins etc, & then table masking to modulate them
& if there happens to be a subtle alteration in the ratio of upper partials
between the bass range & the upper range of an instrument (say for example),
then cross fading / interpolating any data somehow isn't going to remain
focussed on any "exact partial range" any more - thus diminsihing any
meaningful partial modulation targets for the interpolated signal....
am I making sense? the alternative would be a SPEAR analysis, hand editing,
python wrangle, & PVX file for each note of the instrument.... & that's
something i have been kind of reluctant to get into for obvious time &
sanity depreciating reasons....
John Lato wrote:
>
> Have you looked at Loris? It also extracts band limited noise from
> analyzing a
> soundfile. By using the Loris library in Python (not the csound opcodes)
> I was able
> to extract all the analysis data, then use it any way I wanted. I don't
> have much
> experience with ATS though.
>
> John W. Lato
> School of Music
> The University of Texas at Austin
> 1 University Station E3100
> Austin, TX 78712-0435
> (512) 232-2090
>
> Tim Mortimer wrote:
>> Some of u may recall I was unable to get ATS -u utilities working on my
>> machine. Or rather they worked but the residual noise was being spat out
>> as
>> a wav file, & not as ATS analysis data that could be read by ATS adnz (or
>> similar..)
>>
>> I'm keen to use an ATS like "model" however to supplement my partial
>> based
>> resynthesis experiments with noise "bands".
>>
>> In attempting to find out more about noise bands in ATS i have discovered
>> the "Bark scale"
>>
>> http://en.wikipedia.org/wiki/Bark_scale
>>
>> & am keen to perhaps begin with this as a model for implementing some
>> arbitrary "sound design" (along a
>> vaguely ATS inspired trajectory) using a band of "band limited noise"
>> oscillators....
>>
>> but I was wondering (as none of the ATS info i have looked at reveals as
>> much), & similar to my PVOC data / SPEAR SDIF musings....
>>
>> * is it possible to "extract" from an ATS analysis file a meaningful
>> summary
>> of the "noise bands"
>>
>> to allow for "resynthesis by arbitrary/ alternate models" of noise
>> components of a sound?
>>
>> has anyone already been down this route? or can anyone simply clarify yet
>> another "how can i tweak & edit my XYZ resynthesis data" query? (this
>> time
>> about ATS...)
>>
> --
> Send bugs reports to this list.
> To unsubscribe, send email to csound-unsubscribe@lists.bath.ac.uk
>
>
--
View this message in context: http://www.nabble.com/ATS-noise-data---Bark-scale-tf4605982.html#a13166192
Sent from the Csound - General mailing list archive at Nabble.com. |