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 Forum index » Clavia Nord Modular » G2 Patches - Experimental
indian tampura drone
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bantri



Joined: May 15, 2005
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PostPosted: Fri Jul 21, 2006 4:17 pm    Post subject: indian tampura drone Reply with quote  Mark this post and the followings unread

first attempt to clone the tampura drone on
shakta - micronesia (right at the start)
any inprovements/suggestions in terms of lowering cpu usage or better similarity with the original are welcome Smile
(using demo software version)
to use this the 4 on buttons should be clicked mannually to sustain the sound just like plucking a tampura for the same reason.
things missing:
1) on a real tampura ther is a ressonant wooden cavity....
no idea on how to make the four strings to ressonate like this.
2) on the real instrument oscillations beetween the 4 strings transfer a small amount of energy between them, and in this model they don´t interact with each other.
3) on the real instrument there is a metallic or wooden fret close to one end of the strings to insert a mettalic noise when the oscillating strings touch it.... don´t know how to insert this into each string oscillator.
even with those problems it feels like a pleasing drone.
bantri


indian tampura drone.pch2
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mosc
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PostPosted: Sat Jul 22, 2006 8:09 am    Post subject: Reply with quote  Mark this post and the followings unread

Very nice. On my G2X I increasted the polyphony and it gets some very rich sounds. Beautiful.

We've recently had two Indian music submissions here; this one from Brazil and one from Sweden. Smile

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ian-s



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PostPosted: Sun Jul 23, 2006 1:28 pm    Post subject: Reply with quote  Mark this post and the followings unread

Sounds great.
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bantri



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PostPosted: Sun Jul 23, 2006 3:08 pm    Post subject: for the curious modellers.... Reply with quote  Mark this post and the followings unread

sites i stepped doing some research that really worth taking a look....

karnatik site:
http://www.karnatik.com/shrutibox.shtml
the samples (played reasonably well and for a long period, of the real instrument)

home made instrument
http://www.ehhs.cmich.edu/~dhavlena/tamboura.htm
nice site with shows how to build it with cheap parts, but the samples show a perceivable plucking that diminishes the droning feeling.
(with sounds)

hardware modules
http://www.cyndustries.com/modules_tabla.cfm
modular synth part built specifically to emulate this instrument
(with sounds)

a few things to consider emulating the instrument that weren´t mentioned:
Smile
the real instrument is excited by plucking (which ideally should be difficult to be perceived as soon it starts to drone. (holding the string with 2 fingers and pulling it up like said in the home made site.
using modular aproach, there are extra options that surely can make this more interesting that are string exciting by bowing effect (maybe using rndtrig module to insert pulses each time the bow slips in the string) or
by exciting by injecting an oscillating wave at a ressonant freq in the string osc which in the real case is impossible unless someone gently touches the string with a cell phone ringing in vibracall mode ( and the freqs are compatible)
my aproach was to excite using noise with a slow attack

another difficult task is the fact that the real instrument uses fretting on purpose near the end of the string which removes less vibrating energy but is not possible to reach this point because i have used the strg osc as a whole, maybe if using several delay modules for recreating it makes possible the fact that some small oscillations at delay line ends could be used to add this distortion.

there are two strings tuned to the same note in the real one and in the real case when plucking one of two strings in paralel what happens is that energy exchanges back and forth between them (at a rate governed by slightly detuning them).... for this it should be interesting to link those str oscs to allow the vibration exchange like the real case.

beware of virtual modular sound construction.... its very addictive....
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bantri



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PostPosted: Wed Jul 26, 2006 5:26 am    Post subject:
Subject description: small improvement
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small improvement adding wah filter with lfo to enhance the droning
(but with one string removed) (cpu overload)


indian tampura drone v2.pch2
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bantri



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PostPosted: Thu Aug 03, 2006 10:02 am    Post subject: tampura sitar distortion
Subject description: tampura sitar distortion
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the specific signature of the tampura/sitar distortion is generated by the curved fret at the ressonator side.

as the string vibrates, its length slightly grows at one side of the vibration cycle raising the pitch.

this can be acomplished by modulating one half of the wave passing thru a lowpass back into the delay module, simulating this curved fret effect.


tampura sitar distortion.pch2
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tampura sitar distortion

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v-un-v
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PostPosted: Thu Aug 03, 2006 1:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Have you heard "Journey in Satchindananda" by Alice Coltrane? (wife of John).

It's got some beautiful tampura drones set to jazz Smile

I'd love to own the real thing Very Happy

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elektro80
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PostPosted: Thu Aug 03, 2006 1:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

Posted Image, might have been reduced in size. Click Image to view fullscreen.

??


Quote:

The tambura is an indian classical string instrument, the evolution of the tambur (an instrument close to the tambura but of smaller size).

In the XIXth century, this instrument was smaller, because its main resonator is made of a pumkin and big pumkins were not available in India. The neck of the instrument is hollow and is used as a "central" resonator.
Its body is carved out of tun, (Cedrela tuna) or teak wood.
But the special drone effect results from the flat bridge or jawari, which increases enormously the spectrum of the notes and links the strings' vibration.
Main accompaniment for the Indian classical music's singer, the tambura is played on open strings. The 4 strings are tuned PA SA SA SA, (dominant, tonic, tonic, tonic of the lower octave).
By a extremely precise tuning, a tembura can play the raga scale with it's harmonics

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v-un-v
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PostPosted: Thu Aug 03, 2006 3:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

Cool
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PostPosted: Thu Aug 03, 2006 3:48 pm    Post subject: Reply with quote  Mark this post and the followings unread

v-un-v wrote:
Cool


Ahh... right... I should have known.. the tambura comes with dark shades..

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PostPosted: Thu Aug 03, 2006 4:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

elektro80 wrote:
v-un-v wrote:
Cool


Ahh... right... I should have known.. the tambura comes with dark shades..


Indeed.

(You should see the colour of the shades that come with the sitar!)

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PostPosted: Thu Aug 03, 2006 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

The one that also comes with the Captain Kirk stickers?
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PostPosted: Thu Aug 03, 2006 4:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

elektro80 wrote:
The one that also comes with the Captain Kirk stickers?


Nope. That's a plastic clarinet Very Happy

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PostPosted: Thu Aug 03, 2006 5:13 pm    Post subject: Reply with quote  Mark this post and the followings unread

You are sure about that? Where`s this smoke coming from? Shocked
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bantri



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PostPosted: Tue Aug 08, 2006 6:36 pm    Post subject: sitampura
Subject description: sitampura
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another one to simulate the buzzing effect caused by the proximity of the string to the bridge


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