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Содержание POLYPHONY 3/76

Страница 1: ...POUPHONU 3 76 Patches Music Notation Computer Drums Construction Projects Sound Systems for Synthesizer...

Страница 2: ...through them to try to decide what you guys wanted Then I saw what was happening The dividing line wasn t between certain products but groups or types of products When reading the new pro duct ratings...

Страница 3: ...l 2 Patches 30 Local Happenings 7 New From PAIA 22 Next Issue 43 Equipment Exchange 43 Marvin Jones EDITOR Linda Kay Brumfield Assistant Editor John S Simonton Jr Contributing Editor Ramona French Pro...

Страница 4: ...r time by hitting the pad with one of the drumsticks The voltage applied by the drumstick initiates the sound in the same manner as the key board trigger output would work if keyboard control were bei...

Страница 5: ...ecords music and sound effects for the San Diego Junior Theater The theater is run by professionals and is for youths who take acting seriously Since each production is highly polished and seen by tho...

Страница 6: ...y of active filters there is more detailed information here that lets you do more involved design work optimizing things to your particular needs and perhaps using a simple handheld calculator for the...

Страница 7: ...er issue and a buy sell trade section in the rear All issues are loose sheets punched for 3 ring notebooks and back issues since 1972 are available Current subscription rate is around 16 and if you wr...

Страница 8: ...else you normally keep with your synthesizer Using the furry half of the Velcro wrap a layer around the body of the cord plugs and cement in place with epoxy etc Be sure to prepare both ends of the p...

Страница 9: ...e portal and picture the door closing ore me is a group of cabinets that obviously is a musical instrument It s domi nant feature is two stacked AGO keyboards Above the keyboards a panel with two cent...

Страница 10: ...w it by heart I type DEFFN DYNAMUTE SIGNAL OSC PULSE 10 FILT BP Q50 CC2 AMP 100 CNTRL ENVG A10 D0 80 R5000 FILT AMP KBD OSC TRIG KBD ENVG PLAY DYNAMUTE KI OUTL OCT3 RUN And now as I play the old famil...

Страница 11: ...it more than anything I type COMPRESS STR LEAD and wait while the machine scans this score and reduces the memory space required by inserting transpose and repeat instructions wherever possible Using...

Страница 12: ...be installed in the manual trigger hole or in the space between trigger button and output attenuator The only drawback is that a step trigger must be used with the ADSR when the muting is on If this...

Страница 13: ...abled and only the release discharge path remains active This causes some interaction to occur between the cay and release controls and the decay time will always be less than what is produced by the...

Страница 14: ...fun to use that I m sure other readers would enjoy experimenting with it also Some of the applications include adding syncopation to sequencers producing square wave vibrato which increases speed as...

Страница 15: ...hrown in The fourth installment will cover the goal of this series nota ting electronic music Discussion will include how synthesis has been notated in the past things to keep in mind when scoring for...

Страница 16: ...Alto Saxaphone o CD P P CD 2 CD W P CD O o p o p I S E CD 7j c B O CD o 16...

Страница 17: ...ecutive keys produce a half step The Grand Staff SHARPS and FLATS are used in conjunction with the letter names to achieve notation for the tones which lie between the letter notes A sharp is used in...

Страница 18: ...alf Whole Whole Whole Half C Major Scale MINOR SCALES again use eight consecutive notes from the musical alphabet but the half steps fall between different notes as compared to the major scale There a...

Страница 19: ...the piece Sharps and flats will still be seen in the music but these will be accidental notes as required to fit into the chords or melody being used Also a natural sign can be used prior to a note wh...

Страница 20: ...ple a G chord in a piece that is written in C major would be a dominant chord with respect to the C major tonic chord If the music should modulate to the key of A minor and a G major chord appears aga...

Страница 21: ...ng can be used in other modules too For example how about fine tuning on the keyboard pitch control Also check with your local electronic parts distributor to see if he stocks a system of custom built...

Страница 22: ...through your psyche in unpredictable patterns never repeating The combination of LSI organ technology with synthesiser type processing and digital randomizing control elements make the EGG an altogeth...

Страница 23: ...stage Charge Coupled Device analog shift register that exactly duplicates the effect of two tape recorders running slightly out of synchronization Multiple user controls allow effects ranging from ch...

Страница 24: ...ly or create standing waves on the surface of the cone etc But it s the best device we have so far and acoustics people have found ways to get around most deficiencies so we use them and hope for a be...

Страница 25: ...because the system will be too large and massive to be able to vibrate at these frequencies With two speakers the low frequency nnit is called a woofer and the high frequency unit is called a tweeter...

Страница 26: ...p stages the outputs are applied to multiple power amps Each power amp directly drives the appropriate speaker section Now you may think it s dumb to save some money on a crossover and have to spend a...

Страница 27: ...rtant to most keyboard players since you may have a synthesizer electric piano organ maybe a string synthesizer and more A basic mixer should have separate level controls for each input tone controls...

Страница 28: ...e JBL Enclosure Construction Kit 5 00 from local JBL dealers or James B Lansing Sound Inc Technical Information Department 3249 Casltas Ave Los Angeles CA 90039 The kit includes material dealing with...

Страница 29: ...usical Pro Shop 7A Aylesbury Rd Timonium MO 21093 Name brand equip ment and accessories sold at really low prices Instrument amps P A cabinets and mixers microphones power amps and mike stands McGee R...

Страница 30: ...WAY have you sent us your favorite patch yet I figure that if each subscriber sent us one patch assuming 30 40 duplication we would be able to publish 100 patches per issue next year Or maybe put out...

Страница 31: ...the original signal through By adjusting the bias and sensitivity of the envelope follower the signal can be maintained at a set level thus approximating a compressor sustainer HMA GUOML PROP TYPE AIR...

Страница 32: ...ou can play a tune in the jungle Applying a pulse to AR 3 and setting the decay for maximum gets a screaming banshee Applying a very low control voltage to VCO 4 modulates the pulse of VCO 3 for a rep...

Страница 33: ...inal signal You can also use the gate from the envelope follower to trigger an AR generator to drive the VCO This will give a fixed pitch to modu late against JUNGLE PATCH VCO s 1 and 2 tuned to uniso...

Страница 34: ...t unless your cat is a lion Submitted by Mark Lutton Schenectady NY DRUM TRIGGERS Adjust envelope follower for desired range of pitch A small mike such as one from a little inexpensive cassette record...

Страница 35: ...his sound it is necessary to modify the time constants of the 4740 by in creasing the timing capacitor to 25 mf P S If anyone comes up with a way to create the sound of the wheels screeching at touchd...

Страница 36: ...t of delay Bias to VCO 1 can be changed to alter speed of vibrato Submitted by Michael Wilson Ottawa Ontario Canada more next issue Random Noise continued from page 8 GND and blank write on labels The...

Страница 37: ...cuits interfacing and programming Let s get on with it DRUM OSCILLATORS Most drum units generate their percussion sounds using a simple active filter section like that shown in figure 1 There are two...

Страница 38: ...ere are specificly for National s SC MP evaluation kit but with slight modifications are applicable to most others Figure 3 shown on the following page shows an extremely simple interface adapter that...

Страница 39: ...s by SWTP IMSAI or MITS or even some smaller systems such as the F 8 the problem is academic These machines have provisions for output ports and you will use them why fight the system In these cases t...

Страница 40: ...uch more in a complete program lines of program code Programming for the drums can be as simple or elaborate as you like Regrettably there is sufficient space here for only a few tips The instructions...

Страница 41: ...a drum associated with it There are two reasons first we ve got a bunch of drum sounds already and secondly we can use that 8th bit in our programming as an indicator that the data we ve loaded is not...

Страница 42: ...S You may remember that we had a contest in the last issue to find an easier way to design the Tracking Top Octave circuit that I had shown in Lab Notes Everyone who was interested enough to enter rec...

Страница 43: ...795 0125 FOR SALE PAIA 2720 A with 9 4710 4720 and a PAIA 3712 Ping Pong All equipment operating properly and has had little use 300 Bruce Fruechting P O Box 1234 Las Vegas NM 87701 FOR SALE OR TRADE...

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Страница 45: ...downloaded for free from www muzines co uk The mw zines project is a non commercial labour of love archive of music production magazines from the 1970s 2000s muzzines musicmagazinearchive www muzines...

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