maxplanck735@hotmail.com

http://64.233.167.104/search?q=cache:JIML02KE3wQJ:www.cnmat.berkeley.edu/ICMC99/papers/msp%2Bsdif/icmc99-msp%2Bsdif-short.pdf+%22supporting+the+sound+description+interchange+format+in+the+max/msp+environment%22&hl=en&gl=us&ct=clnk&cd=1&client=firefox-a

"By default, SDIF-tuples returns data from the frame closest to the given time. The —interp“ argument causes interpolation along the time axis of the SDIF stream. Given a desired virtual time, SDIF-tuples finds the next earlier and next later frames in the stream, and the ratio of the given time between the times of the two frames. SDIF-tuples matches each datum in the first frame with the corresponding datum in the second, scales each by the appropriate ratio, and adds them together to produce the result."

What is the syntax for using the "interp" argument? Do I input the word "-interp" from the message box that feeds into SDIF-tuples, or do I enter the word "-interp" as an argument in the SDIF-tuples object itself? I've tried various ways that I can think of, but none of them seem to work... I get "bad argument after interp" and stuff like that.

Does anyone know how to get this to work?

"By default, SDIF-tuples returns data from the frame closest to the given time. The —interp“ argument causes interpolation along the time axis of the SDIF stream. Given a desired virtual time, SDIF-tuples finds the next earlier and next later frames in the stream, and the ratio of the given time between the times of the two frames.  SDIF-tuples matches each datum in the first frame with the corresponding datum in the second, scales each by the appropriate ratio, and adds them together to produce the result."

What is the syntax for using the "interp" argument?  Do I input the word "-interp" from the message box that feeds into SDIF-tuples, or do I enter the word "-interp" as an argument in the SDIF-tuples object itself?  I've tried various ways that I can think of, but none of them seem to work... I get "bad argument after interp" and stuff like that.

Does anyone know how to get this to work?


sdif-tuples-and-the-interp-argument-for-interpolation-cnmat-object

Quote: maxplanck735@hotmail.com wrote on Tue, 30 January 2007 17:17

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> What is the syntax for using the "interp" argument? Do I input the word "-interp" from the message box that feeds into SDIF-tuples, or do I enter the word "-interp" as an argument in the SDIF-tuples object itself? I've tried various ways that I can think of, but none of them seem to work... I get "bad argument after interp" and stuff like that.

I believe you send SDIF-tuples the message "interp" with an integer argument, selecting the mode. Probably, 0 = no interpolation, 1 = linear interpolation, 2 = Lagrange/Waring interpoltion. I think Number 2 takes another argument, indicating the polynomial degree.

As you might gather, this feature was never fully developed. Also, note that sinusoids~ does a linear interploation of it's partials over one signal vector, which might be confusing.

Quote: maxplanck735@hotmail.com wrote on Tue, 30 January 2007 17:17
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> What is the syntax for using the "interp" argument?  Do I input the word "-interp" from the message box that feeds into SDIF-tuples, or do I enter the word "-interp" as an argument in the SDIF-tuples object itself?  I've tried various ways that I can think of, but none of them seem to work... I get "bad argument after interp" and stuff like that.

I believe you send SDIF-tuples the message "interp" with an integer argument, selecting the mode.  Probably, 0 = no interpolation, 1 = linear interpolation, 2 = Lagrange/Waring interpoltion.  I think Number 2 takes another argument, indicating the polynomial degree.

As you might gather, this feature was never fully developed.  Also, note that sinusoids~ does a linear interploation of it's partials over one signal vector, which might be confusing.

SDIF-tuples and the "interp" argument (for interpolation) [CNMAT object]