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Coaxial musical instrument transducer
2010-03-11
instrument utilizes a coaxial structure. An electromechanical film tape is disposed about an inner, electrically conductive core. An outer conductor is formed about the electromechanical film tape. The electromechanical film tape may be provided as a piezoelectric polymer film or an electret film having a permanent electric charge, and is formed about the inner core by wrapping or braiding. Prior to being disposed about the inner core, the film tape may be polarized through the application of a direct current through the film to substantially align the electrical domains in the film. The transducer is configured for placement underneath the saddle in a bridge of a stringed musical instrument.Claims

What is claimed is:

1. A musical instrument transducer comprising:

an inner conductor comprising electrically conductive material;

an electrically active transducer layer about the inner conductor, wherein the electrically active transducer layer is provided in the form of a film tape; and

an outer conductor, comprising electrically conductive material, disposed about the electrically active transducer layer.

2. The musical instrument transducer of claim 1, further comprising electrically conductive leads connected to the inner conductor and the outer conductor.

3. The musical instrument transducer of claim 1, wherein the thickness of the electrically active transducer layer is less than half the thickness of the inner conductor.

4. The musical instrument transducer of claim 1, wherein the inner conductor has a thickness of between 0.075 and 0.08 inches.

5. The musical instrument transducer of claim 1, wherein the electrically active transducer layer has a thickness of between 0.010 and 0.015 inches.

6. The musical instrument transducer of claim 1, wherein the electrically active transducer layer is formed by wrapping the film tape about the inner conductor.

7. The musical instrument transducer of claim 6, wherein the electrically active transducer layer is formed by helically wrapping the film tape about the inner conductor.

8. The musical instrument transducer of claim 1, wherein the electrically active transducer layer is formed by weaving the film tape about the inner conductor.

9. The musical instrument transducer of claim 1, wherein the inner conductor is a twisted bundle of wires.

10. The musical instrument transducer of claim 1, wherein the inner conductor is a solid, electrically conductive material.

11. The musical instrument transducer of claim 1, wherein the outer conductor is an electrically conductive ink formed on an outer surface of the electrically active transducer layer.

12. The musical instrument transducer of claim 1, wherein the outer conductor is an electrically conductive foil disposed on an outer surface of the electrically active transducer layer.

13. The musical instrument transducer of claim 1, wherein the outer conducto...

Bridge for stringed musical instrument
2010-03-01
instruments which bridge is shaped, for preferred embodiments, so as to provide maximum, and substantially uniform, mechanical compliance between the bridge and the soundboard of the instrument over the full frequency range of the instrument while still being wide enough at each point along its length to effectively couple the frequency of vibrations to be driven by the bridge at that point. For alternative embodiments, the shape of the bridge is altered at one or more selected points along its length, altering the mechanical compliance at these points in a predetermined manner. These variations cause the instruments to have a predetermined frequency response characteristic.ClaimsWhat is claimed is:

1. In a stringed musical instrument having lower frequency or bass strings and higher frequency or treble strings, vibrations of the strings being coupled through a bridge toa soundboard, the mechanical compliance between the bridge and the soundboard at each point along the bridge from the bass end thereof to the treble end thereof being dependent on the frequency being coupled by the bridge to the soundboard at that point,a bridge having:

a first predetermined width at the bass end thereof, said width being sufficient to effectively couple the lowest frequency vibrations to be coupled by said bridge;

a second predetermined width at the treble end thereof, said second width being less than said first width and being sufficient to effectively couple the highest frequency vibrations to be coupled by said bridge; and

a width at each point intermediate said bass and treble ends which is both sufficient to effectively couple the frequency coupled at that point and is selected such that the mechanical compliance between the bridge and the soundboard issubstantially the same at all points along the bridge. by said bridge; a second predetermined width at the treble end thereof, said second width being less than said first width and being sufficient to effectively couple the highest frequency vibrationto be coupled by said bridge; and a width at each point intermediate said bass and said ...

the nord stage via midi? I didn t
2010-02-21
using the button or a single panel with splits.
Don't forget that every instrumentan be set to a different midihannel! then is easier...
index » Instruments an...

streaming audio: Part
2010-02-09
Hampshire Pre-JamOn-demand streaming audio: Part 1 (56 min) Part 2 (57 min) Part 3 (62 min) Part 4 (35 min) We are happy to be able to present on-demand streaming audio of some terrif performaes from the Hampshire Jam "Jam" held on tober 20, 2006 in Lhook, England. This was not the "main" Hampshire Jam, but a spial improvisedoert held the night before.This is very beautiful Spe Mus from one of the genre's premiere venues with some of its most complished musians, many of them members the eltro-musommunity. Partants and equment:John Sherwood usually prodes ambient ...

Harmonic formant filter for an electronic musical instrument
2009-10-20
instrument of the type in which musical tones are generated from waveshape data calculated independently of frequency of the tone from constituent generalized Fourier components. The Fourier components are individually scaled by scale factors selected from a set of stored scale factors which define the transfer characteristic of the fixed formant filter. Each separately addressable stored scale factor corresponds to a different frequency value in the musical scale. A scale factor is selected for separately scaling each harmonic of the tone generated in response to the particular note of the musical scale keyed on the instrument. The selected scale factors may be modified by a frequency deviation signal to provide vibrato or other frequency modulation effects. The selected scale factors are also corrected for any frequency deviation between the actual frequency of the harmonic of the keyed note being scaled and the frequency value associated with the selected scale factor.ClaimsWhat is claimed is:

1. A tone generator having a fixed formant filter characteristic for generating a tone having a pitch selected by operating a key on a keyboard comprising a harmonic counterfor counting the harmonic components of the tone being generated, means initiating a plurality of harmonic component calculation cycles, said means advancing the harmonic counter at the start of each calculation cycle, means storing a plurality ofharmonic coefficient values, means reading out a different coefficient value from the storing means with each advance of the harmonic counter, means storing a plurality of sinusoid values, means reading out a sequence of sinusoid values with each settingof the harmonic counter, adder-accumulator means, means multiplying the coefficient value for each harmonic calculation cycle with a sequence of sinusoid values and adding the product values to the adder-accumulator, addressable means storing a pluralityof scale factors corresponding to the relative amplitude values of the fixed formant filter characteristic at predetermined frequencies corresponding to the musical notes of the keyboard, means for addressing the addressable storage means in response tothe selected key on the keyboard and the state of the harmonic counter, means multiplying each of said product values added to the adder-accumulator by the associated scale factor read out of the storage means, and means converting each of the valuesstored in the adder-accumulator at the completion of said calculation cycles to an analog voltage in sequence at a rate determined by the pitch of the tone being generated, whereby the set of values stored in the adder-accumulator is converted to anaudio voltage signal having a fundamental frequency corresponding to the desired pitch of tone being generated, means for modifying the scale factor read out of the addressable scale factor storing means including means for generating the incrementaldifference between successive scale factors read out of the scale factor storing means, means generating a frequency deviation value, means multiplying said incremental difference by said deviation value, and means adding the content of the multiplyingmeans to the scale factor from the scale factor storing means.

2. Apparatus of claim 1 wherein the means generating the frequency deviation value is varied as a function of time to produce a frequency modulation effect.<...

Nord Modular » Nord Modular
2009-05-07
toggled the power swih, and when the instrument rebooted, the two-digit display (whh typally shows "EL" and then "2.0" when starting up) showed "EL", then "E.7", then "rd" whh remained indefinitely. Now bk...

here about those here somewhere
2009-05-06
Midi interfes? We have some threads here about those here somewhere.Here is one of them: eltro-musomtop-20161Aharity Pantomime in aid of Paranoid hizophrens deended intohaos yesterday when someone shouted, "He's behind you!" Mus at MySpe and Virb - index » Instruments and Equment » General Diussion Please support our site. If youlk through and buy from our affiliate partners, we earn a smallommission. Calendar Event: February 20, cahdubsomflashingfl...

very often and usually I ll
2009-05-05
I feel seeing what people are writing is thelosest wean get to seeing what instrument they are rehing for... In some ways this is limited but Iould also see strengths to it, for example one personould help another...

a funeral arrangement and the instrument
2009-05-05
Blue HellSite AdminJoined: Apr 03, 2004: 13294Lation: Netherlands, EnhedeAudio files: 35G2 pah files: 302 see you found your way here already _________________Jan Display from previous: All 1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First Youannot new tops in this forumYouannot reply to tops in this forumYouannot edit your in this forumYouannot delete your in this forumYouannot vote in polls in this forumYouannot atth files in this forumYouan download file...

from my first impression
2009-05-05
soundwave106Joined: Nov 24, 2004: 206Lation: Elmo's Mud WrestlinglubAudio files: 2 Sine wave oillators. An analog with sine oillators will work for this. tually FM should work too sie the base of many FM pahes is sine waves, I remember a few FM8 pahes that sounded similar for instae. soundwave106Joined: Nov 24, 2004: 206Lation: Elmo's Mud WrestlinglubAudio files: 2 The pad does sound a bit more than sine wavey, maybe a triangle wave or a not very harsh wavetable type sample. I dunno, the ...