This patch allows us to make spectral interpolation between two 'Spear' files;

Using 'Spear'; analyze any length of sound, reduce the content of spectrum by deleting partials below x magnitude{dB} and x length{sec}.

spectral-interpolation.zip

After you've downloaded the spectral interpolation folder

open ~/spectral-interpolator-help.pd

1- type 1 on the number box
2- choose the .txt 'Spear' file {departure}
3- type 2 on the number box
4- choose another .txt 'Spear' file {target}
5- send an init bang
6- start playback [you will hear the first sound character]

after this steps you can navigate between two sounds using the yellow slider.

I used Dan Ellis' patch to import Spear file into Pd.
http://www.ee.columbia.edu/~dpwe/e4896/practicals.html#prac04

spectral-interpolation.zip

Quite CPU-intensive, but the concept sounds interesting.
I just gave it a try, but the yellow slider does not seem to change anything.
Are those error-messages normal??
..can I load any of the included txt-files?!?
Just to make shure I did no mistake..

these error messages are normal
inlet: expected 'float' but got 'list'
: no such table

you can load any of the included txt-files. But I suggest trying different sounds using Spear export.

If you follow the 6 steps, the yellow slider should trigger the calculation of interpolation.

you can also check this video, which documents the steps.
http://www.fileden.com/files/2009/12/26/2703030//spect-interp.mov

thankyou for this nice patch.

i've just downloaded spear and tried to import a "text resampled frames) file from spear and pd crashes everytime. is there a secret ?

i have a 2nd problem.

pd can't find "array-inter" and the patch doesn't work !?

oh yes,

I've put the 'array-inter' into the .zip folder.
Please try this
http://www.fileden.com/files/2009/12/26/2703030//spectral-interpolation.zip

Thank you for letting me know.

thanks,

but i'm wondering that its works the first time of the download.

can you explain the spear settings, because i can't get anything from spear to work !?

Spear issue:

• analyze a sound {.wav or .aiff}
• Edit>Select Partials Below Threshold {delete partials below x magnitude}
• Edit> Select Partials Below Duration {delete partials below x duration}
• File>Export {Text - Resampled Frames}

thanks.

delete partials below x ...

means howmany x, if i load a wave with a duration of 7 minutes.

is there a maximum i can load (because i do it your way and it doesn't work)

> ...how many x..?
it depends on your ram and cpu power.
Try to load AsianKit.txt and AsianKit-2.txt; their size are optimum for my system 2.4 gHz Intel. 2 gb ram.

> ..a wave with a duration of 7 minutes..
7 minutes is too long!; the aim is not to interpolate long pieces, but rather relatively short sounds

thankyou