great read - thanx for that!!!What amazing news it is to know that Steveropper, Donald"Dk" Dunn, Steve Potts, and Lester Snell will be touring Australia with Guy next Mah. This will be the ultimateoert experiee for me, musians I loved bk in the day,along with my favourite Aussie singer. This is fabulous news !!!!I simplyan...
Abstract textMethods, systems, and devices are described for automatically converting audio input signal data into musical score representation data. Embodiments of the invention identify a change in frequency information from the audio signal that exceeds a first threshold value; identify a change in amplitude information from the audio signal that exceeds a second threshold value; and generate a note onset event, each note onset event representing a time location in the audio signal of at least one of an identified change in the frequency information that exceeds the first threshold value or an identified change in the amplitude information that exceeds the second threshold value. The generation of note onset events and other information from the audio input signal may be used to ...
AbstractAn electronic musical instrument incorporates a single integrated circuit chip for performing a variety of logical operations for the production of chords and various accompaniment signals automatically, in response to depression of one or two keys within a related portion of the keyboard of the instrument. A multiplexer is employed, in association with the keyboard, to produce a train of signals in response to depression of one or more keys, and one or more function control switches; certain ones of these signals are used to address a plurality of read only memory devices for the generation of the several components needed for the mode of operation which is selected. In an automatic chord mode, a chord is selected automatically, corresponding to an operated key of the keyboard. The chord components include the root, the third (which may be selectively minored), the fifth, the sixth and the seventh (which can be selected or not). The several chord components are mixed in a stair step network for one output signal, amd may selectively be produced individually for an arpeggio or a strum or both.ClaimsWhat is claimed is:1. In an electronic musical instrument having a plurality of function selecting switches, a keyboard, tone signal generating means responsive to operation of the keyboardkeys, and an output system responsive to said tone signal generating means, the combination comprising: signal producing means responsive to the operation of one or more keys of said keyboard for producing a digitally coded signal indicative of aselected chord; said tone generating means including N separate tone signal generators, one for each note of an N note chord; first connector means for applying at least a selected portion of said coded signal to each of said tone signal generators,each of said tone signal generators producing an output tone signal, in response to the signal applied thereto, corresponding to a different note of said selected chord; and second connector means, connected to said function switches and to said outputsystem and responsive at least in part to said function switches, for selectively applying the output tone signals from said tone signal generators to said output system.2. Apparatus according to claim 1, including multiplex means comprising a plurality of single-pole switches associated with the keys of said keyboard, one pole of each of said switches being connected to one of a first set of conductors, thesecond pole of each of said switches being connected to one of a second set of conductors, said first set of conductors connecting in common the first terminal of all said switches associated with keys of the same note name, said second set of conductorsconnecting in common a second terminal of all of said switches associated with keys of the same octave group, means for repetitively scanning said first set of conductors at a first rate, means connected with said second set of conductors for scanningsaid second set of conductors at a second rate which permits the complete scan of all of said first set of conductors while each individual conductor of said second set is being scanned, and means for connecting said second set of conductors to a commonoutput terminal, whereby there is produced at said common output terminal a train of pulses corresponding to operated ones of said switches, occurring in time encoded position in accordance with the operated switches.3. Apparatus according to claim 2, wherein the scanning means for said first set of conductors incorporates counting means for manifesting a representation of the note name of the key being scanned at any instant, and means for connecting saidstorage means to said counting means, for storing a representation of said note name in response to a pulse received from one of a group of predetermined keys.4. Apparatus according to claim 2, including pulse adding means connected to said common output terminal, for adding pulses to said pulse train corresponding to unoperated keys which are related to the tone signals produced by said tone signalgenerators.5. Apparatus according to claim 1, wherein said signal producing means include means for producing a series of separate pulses, one for each operated key of a predetermined group of keys, means responsive to a first of said pulses for initiatinga window period, means responsive to another of said pulses for terminating said window period, and means for manifesting a window signal during said window period.6. Apparatus according to claim 5, including means responsive to said window signal and to one of said pulses occurring during said window period for producing a gating pulse, and means for connecting said gating pulse to said storage means,manifesting means for manifesting a representation of the note name of the key represented by said gating pulse and means for connecting said manifesting means to said storage means to cause said storage means to store said representation at the time ofsaid gating pulse.7. Apparatus according to claim 6, including means for identifying the first of said pulses occurring during a window period and for producing said gating pulse in response thereto.8. Apparatus according to claim 6, including means for identifying every one of said pulses occurring during said window period and producing said gating pulse in response thereto, whereby said storage means is caused to store the representationof the key corresponding to the last pulse received within said window period.9. Apparatus according to claim 1, including manifesting means responsive to said signal producing means for manifesting a representation of the note name of an operated key of said keyboard, storage means connected to said manifesting means andto said signal generating means and operative to store the representation manifested by said manifesting means, means connecting all of said tone signal generators to said storage means, said tone signal generators being responsive to the output of saidstorage means for generating tone signals having frequencies bearing a predetermined relation to the note name representation stored in said storage means.
10. Apparatus according to claim 9, wherein each of said generators comprises a programmable frequency synthesizer having a read only memory, addressing means for said read only memory, and a programmable divider connected to said read onlymemory, means for connecting said storage means to said addressing means for addressing a section of said read only memory corresponding to the representation stored in said storage means, said divider being programmed by signals produced by said readonly memory in accordance with signals supplied to said addressing means, and means for connecting said programmable divider to a source of clock pulses, whereby said programmable divider produces an output signal having a frequency which is a quotientof the frequency of said clock pulses.11. Apparatus according to claim 9, including a decoder connected to said storage means for producing an individual signal on one of a plurality of output lines corresponding to the note name, the representation of which is stored in saidstorage means, each of said generators having a plurality of input terminals connected in common to said plurality of output lines, and each of said generators being adapted to respond to a single energized one of said plurality of output lines toproduce a tone signal having an individual frequency.12. Apparatus according to claim 1, including a plurality of divider units, one for each of said tone signal generators, said divider units being connected between each of said tone signal generators and said output system, manifesting means formanifesting a representation of the note name of a key corresponding to a pulse of said pulse train, means for connecting said manifesting means to said storage means to cause said storage means to store said representation, and means connecting saidstorage means with said divider units for controlling the operation of said divider units in accordance with said representation.13. Apparatus according to claim 1, wherein two of said generators simultaneously produce two tone signals corresponding to two different keys of the keyboard which are simultaneously depressed.14. Apparatus according to claim 1, wherein said signal producing means includes means for identifying a single operated key of said keyboard and means reponsive to said last named means for operating all of said generators.15. Apparatus according to claim 14, wherein said last named means causes said generators to produce tone signals corresponding to the root, third and fifth of a selected chord, said tone signals each being produced by a separate one of saidgenerators.16. Apparatus according to claim 15, including means for causing one of said generators for producing a tone signal corresponding to the seventh of said selected chord, and means responsive to one of said function selecting switches forselectively producing an output signal containing said tone signal corresponding to the seventh of the chord.17. Apparatus according to claim 15, including means responsive to one of said function selecting switches for selectively causing one of said generators to produce a tone signal corresponding to the minor third of said selected chord.18. Apparatus according to claim 15, including strum means responsive to one of said function selecting switches for causing said tone signals to be produced at an output terminal successively in predetermined order.19. Apparatus according to claim 18, including a plurality of tone signal output terminals, a plurality of gates for connecting individual ones of said generators to said output terminals when said one function selecting switch is closed, aplurality of keying signal output terminals, and means for providing pulses sequentially to said keying signal output terminals.20. Apparatus according to claim 19, wherein said last named means comprises a clock signal generator, a plurality of gates each having an output connected to one of said keying signal output terminals, and pulse distributing means forsuccessively applying pulses from said clock signal generator to said keying signal output terminals.21. Apparatus according to claim 20, including bistable means, means for connecting an input pulse to said bistable means for setting said bistable means to a first state, means connecting said bistable means to said pulse distributing means forinitiating operation of said pulse distributing means, and means for resetting said bistable means at the end of one cycle of pulses applied to said keying signal output terminals.22. Apparatus according to claim 21, including means for selectively producing at one of said tone signal output terminals a tone signal corresponding to the seventh of a selected chord, and a corresponding signal at one of said keying signaloutput terminals, and means for resetting said bistable means following production of said corresponding signal.23. Apparatus according to claim 21, including means for resetting said pulse distributing means with said bistable means, whereby said strum output means initiates each cycle of operation with production of a pulse at the same keying signaloutput terminal.24. Apparatus according to claim 14, including a tone signal output terminal, and means for sequentially connecting individual ones of said tone signal generators to said tone signal output terminal in ascending and descending order, relative tothe pitches of said tone signals which are connected to said tone signal output terminal.25. Apparatus according to claim 24, including multiplexer means for connecting said generators one at a time to said tone signal output signal, a bistable device, means for sequencing said multiplexer means in ascending order when said bistabledevice is in one state and for sequencing said multiplexer means in descending order when said bistable device is in its other state, and means for alternately setting and resetting said bistable device, respectively, when the highest and lowest pitchesof said tone signals are connected to said tone signal output terminal.26. Apparatus according to claim 25, including means for selectively resetting the sequencing means for said multiplexer means to begin a new cycle of operation with the connection of a predetermined tone signal to said tone s...
h4>AbstractAn envelope generator for use in an electronic musical instrument comprises a musical tone data processing unit to evaluate a rate of change in a current value of musical tone envelope data with respect to a target value based on a parameter, a changing rate control unit for decrementing a change in the current value such that the current value becomes closer to the target value, a detection unit to detect whether or not the rate of change becomes equal to 0, and a processing control unit control for stopping the evaluation the current value in response to a result of the detection.ClaimsWe claim:1. An envelope generator for use in an electronic musical instrument, comprising:musical tone data processing means for evaluating a current ...
h4>AbstractAn electronic musical instrument capable of effecting vibratos with any of tones which may be produced by pressing down the keys of a keyboard. A key constant memory stores key constants each being assigned to a different tone, while a vibrato constant memory stores vibrato constants each being assigned to a different tone. The keyboard is provided with an exclusive switch for effecting vibratos. When this exclusive switch is pressed, a counter which counts clock pulses feeds its output to an adder/subtractor in the form of an addition/subtraction switchover signal and an addition/subtraction execution control signal. In response, the adder/subtractor periodically and alternately performs addition and subtraction with the key constant and vibrato constant asso...
If you own a computer and a simple sound card, you're well on your way to creating your own music at home. It will seem a bit overwhelming to even think that you could do this, but with VST plugins even a novice can make tremendous chart topping hits. You have virtual equipment ready to you at your fingertips. The day of complicated tools for music-making are gone. It doesn't take being a compute...
Anyone that is going to perform a live gig wants it to go smoothly without any troubles or complications. Who else doesn't want a perfect gig? As long as you keep some of the following tips in mind, and you should be on your way to a smooth and interesting performance. Make sure your power tool is entirely adequate. It can get a little dangerous if you're not familiar with the plug-sockets and sources of power. Safe-guard yourself by using a power conditioner. Carry it with you no matter where you go. If you use one live, it can be the very thing that would save you! It is not a awful idea to get into the habit of using one all...
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They seem to havehanged their pring poly, ireased the pre and free delivery, still fairly good value thoughcgi.ebayo.ukMetal-Film-Resistor-1-4W-Assortment-Kit1-2500-50valuesW0QQitemZ320308279175QmdZViewItemQQptZBIEltronomponents?hash=item320308279175&trksid=p39110.m14&trkparms=72%3A168366%3A265%3A1239%3A1240%3A1318Yahoo Synth groupOK, I just ordered from from Sure Eltrons. When I started seahing Ebay I remembered I've bought stuff from them before and it worked great. 2000 resistors, 50 different values, 40 of eh. All for $12.99 iluding shping. That pre is just stupidompared to what you would pay over theounter where I live. I also ordered a kit of 1000apitors (2.4pF~0.1uF) for $9. cgi.ebayomwseBayISAPI.dll?ViewItem&item=350156376738cgi.ebayomwseBa...
Interesting! Thanks for the warning. I'll report bk when I get them. I've bought high qualityomponents from Shure before though so I'm not that worried.PerI'm on TwitterRats! A while bk I bought an assortment from somehinese ebay store. Now they're in most everything I've built sie. Looks like they don't just sk, they really sk!Hmm, well it's not like they're infested just bause you bought them fromhina. If aompany like Sure ( myworld.ebayomsureeltrons ) would sell fakeomponents they wouldn't have 99.9 peent positive feedbk. They wo...
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