[music-dsp] re: Design of a portable drone box (Hardware/Software, Info/Ccomment REQ)

[markrages at mlug.missouri.edu]

On Thu, Jan 31, 2002 at 01:24:41PM -0500, mawali at news.icns.com wrote:
> Hi
> Thanks everyone for very good advise. Some of the proposed solutions are
> actually very enlightening, but, there are a couple of  things that I
> could not make clear were:
> 
> 1) Hindustani music has movabla tonic, and the frequency of tonic note
> depends on the mood, mode of raga, sex, personal preference, choice of
> instrument . So the frequency of first not (tonic) will not always be the
> same. So a recorded sound of tambura will work for me only if I use the
> same flute and play the same raga using the same tonic.

You could clock the PIC with a variable-frequency RC oscillator.

> 
> 2) The second tone of the drone is not always the perfect fifth, but it
> probably could be anything between Major third and major seventh.
> 
> 3) Indian music does not follow the equal temperament scale and is
> microtonal, some ragas use notes that are slightly flat or sharper then
> the regular notes.
> 
> I have no intention to sell the thing in India :-). But if it works I will
> publish it so others can make improve it.
> 
> Thanks
> FT
> 

This would be a great ANALOG circuit... As long as you've got the soldering
iron out, why mess with software?

Regards,
Mark, analog EE
-- 
Mark Rages
markrages at yahoo.com           
http://mlug.missouri.edu/~markrages
The beginning is near.

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