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Although there are 16 drum samples, the TR-505 only has an 8-voice polyphony, restricting some sounds from playing simultaneously: low conga or hi conga; timbale, low tom, mid tom, or hi tom; low cowbell or hi cowbell; hand clap or rim shot; crash cymbal or ride cymbal; closed hi-hat or open hi-hat.
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Samples in the TR-505 are stored as 8-bit unsigned PCM waveforms at a sample rate of 25 kHz. The TR-505 offers some major improvements over the TR-707, including 16 digitally recorded PCM drum sounds (four more than the TR-707) and five Latin percussion voices from the TR-727, reducing the need
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Each individual pattern is a single measure long, The default time signature is 4/4 consisting of 16 steps and quarter note scale, resulting in each step representing a sixteenth note. Other time signatures can be programmed by changing the Last Step (length of patterns) and the scale, allowing for
390:
and modifying the factory setting of the Roland TR-505. An example of a few modifications include changing audio samples, voice circuit bending, adding individual audio outputs, adding CV outputs, adding pitch change to each voice, and adding circuits to randomize sequences.
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The TR-505 can transmit and receive on MIDI channels 1 through 16 and Notes numbers 25 to 99. It also contains a MIDI Omni mode allowing it to receive all MIDI data. The TR-505 responds to the following MIDI messages:
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The TR-505 contains 48 factory sequencer patterns, organized into 3 pattern groups (A, B, and C). The drum machine can also store 48 user created sequencer patterns, organized into 3 pattern groups (D, E, and F).
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Two or more patterns can be combined, using pattern chaining, to play as a single pattern. Each pattern in the chain occupies a pad, but it will only trigger the chain as a whole, not the individual pattern.
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The Tape interface (in/out) allow the Tracks and
Patterns in internal memory to be stored on external tape. Data can be Saved, Verified, and Loaded from the tape.
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Main panel features a simple LCD display, 15 buttons, 2 knobs, 16 trigger pads, 2 outputs for left and right/mono, headphone jack, and tape input/output.
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213:. The drum kit includes basic rock drum sounds similar to those of the TR-707, plus a complement of Latin-style drum sounds similar to the TR-727.
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The TR-505 consists of 16 individual instrument/ pattern pads. The pads are not velocity sensitive, but can be modified by the accent parameter.
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The TR-505 offers very limited voice editing in the form of volume, velocity, MIDI channel, and MIDI note of each voice as a global parameter.
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An accent can be applied to any position in a pattern and will affect all instruments triggered at that position by increasing output volume.
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Users can copy, insert, or delete one or more steps in any given pattern, and copy, insert, or delete patterns anywhere in a track (song).
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Up to six tracks (songs) can be programmed using combinations of patterns. Each song can consist of up to 423 bars (patterns).
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The TR-505 can store 48 ROM patterns, 48 RAM patterns, 6 tracks, and a maximum of 423 measures.
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Velocity message - Note-on velocity is both transmitted and received allowing more expressive.
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There are companies, websites, and magazine articles documenting a DIY process for
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Step write - sequence patterns by stepping through each position in the pattern.
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Track play - plays whole tracks (arrangements of patterns to form songs).
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TR-505 Service Notes. (Jun 1986). Osaka, Japan: Roland
Corporation.
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Tap write - sequence patterns by tapping drums sounds in real time.
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The TR-505 features five basic modes, including the following:
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in 1986. It hails from the same family of drum machines as the
753:
Roland TR-505 Service Manual, Osaka, Japan: Roland
Corporation
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Roland TR-505 Owners Manual, Osaka, Japan: Roland
Corporation
555:
Roland TR-505 Owner Manual, Osaka Japan: Roland
Corporation.
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Real time - play patterns in real time by tapping the pads.
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Reed, Tony. "Roland TR 505 Rhythm
Composer". RhythmCheck.
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Clock message - tempo synchronization, start, stop, etc..
778:- Review, Tech Specs, Images, Media, and Purchase Links
736:"Roland TR505". Making Music. April 1986. p. 27-28
414:
Gilchrist, Trevor (May 1986). "Drumatix Goes
Digital".
172:
8-bit unsigned PCM data, with a 25.00 kHz sampling rate
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Key message - trigger signal for the individual voice.
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Alex Grahm. Rhythm
Machines 2. self-published. 2018.
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776:Roland TR-505 Rhythm Composer | Encyclotronic
729:Reed, Tony. "Roland TR 505 Rhythm Composer".
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722:Gilchrist, Trevor. "Drumatix Goes Digital".
651:"Project: Separate out for the Roland 505".
311:Track write - sequence patterns into tracks.
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814:
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435:"ROLAND DRUM MACHINE HISTORY: 1964 – 2016"
27:
18:
1632:Musical instruments invented in the 1980s
790:- Circuit bending and modding the TR-505
782:Roland TR-505 ROM Expansion | HKA Design
360:Track number message - track/song select
164:MIDI in/out, start/stop foot pedal jack.
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800:Roland TR-505 | Vintage Synth Explorer
123:Patterns: 48 user, 48 preset. 6 Songs.
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514:Gilby, Ian (April 1986). "Beat Box".
7:
784:- Sample modification kit for TR-505
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363:Bar Number message - Song position
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487:"TR-727 Software Rhythm Composer"
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796:- Review, mp3 demos, and manual
1:
724:Electronics & Music Maker
597:"Roland TR-505 ROM Expansion"
416:Electronics & Music Maker
342:Keyboard and external control
794:Roland TR-505 | Polynominal
788:Roland TR-505 | Burnkit2600
331:shuffle and swing rhythms.
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726:. May 1986. p. 38-39.
702:. April 1986. p. 24.
222:to buy a separate unit or
733:May 1986. p. 102-103
26:
229:Summary of drum voices:
71:Technical specifications
731:International Musician.
653:International Musician
469:International Musician
576:(1): 27–28. Apr 1986.
439:Roland Australia Blog
182:rhythm composer is a
1627:Roland drum machines
441:. Roland Corporation
276:Rimshot / sidestick
1637:Japanese inventions
1622:Roland synthesizers
109:Velocity expression
837:Roland Corporation
802:- Review and media
433:Lockwood, Hannah.
195:Roland Corporation
45:Roland Corporation
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1565:Ikutaro Kakehashi
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33:The Roland TR-505
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568:"Roland TR505".
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217:Voice synthesis
156:16 pattern keys
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763:978-1983552588
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700:Sound On Sound
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671:"Roland TR505"
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659:(4). Mar 1987.
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516:Sound on Sound
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1500:Effects units
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475:(6): 102–103.
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382:Modifications
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180:Roland TR-505
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1537:Boss effects
1475:Roland Cloud
1304:Workstations
1140:
844:Synthesizers
730:
723:
699:
693:Gilby, Ian.
678:. Retrieved
674:
665:
656:
652:
646:
634:. Retrieved
631:Burnkit 2600
630:
604:. Retrieved
600:
591:
582:
573:
570:Making Music
569:
519:
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496:September 5,
494:. Retrieved
490:
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468:
443:. Retrieved
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348:
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329:
326:
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303:
299:
291:
287:
282:Open hi-hat
244:Low cowbell
228:
220:
193:released by
184:drum machine
179:
177:
169:Audio sample
146:Input/output
103:sample-based
40:Manufacturer
16:Drum machine
1491:Jazz Chorus
1187:Grooveboxes
1051:Roland VK-8
1046:Roland VK-7
1026:System-100M
675:Polynominal
247:Hi cowbell
1611:Categories
1507:Space Echo
1484:Amplifiers
1370:Sequencers
1031:System 700
1021:System 100
996:SH-01 Gaia
946:Jupiter-50
941:Jupiter-80
851:Alpha Juno
696:"Beat Box"
601:HKA Design
399:References
235:Low conga
87:Oscillator
1101:HandSonic
936:Jupiter-8
931:Jupiter-6
926:Jupiter-4
716:925234032
708:0951-6816
296:Sequencer
238:Hi conga
191:sequencer
77:Polyphony
54:1986–1991
1468:Software
1311:Fantom-X
1233:Samplers
1168:AX-Synth
906:Juno-106
680:June 16,
636:June 16,
627:"TR-505"
606:June 16,
522:(6): 24.
445:June 16,
422:(3): 38.
270:Mid tom
267:Low tom
241:Timbale
224:PCM card
152:Keyboard
138:Hardware
81:8 voices
1558:Founder
1449:SC-8850
1424:JV-2080
1419:JV-1080
1407:Modules
1398:MPU-401
1173:AX-Edge
1155:Keytars
1146:V-Drums
1106:Octapad
1056:V-Synth
1011:SH-1000
921:Juno-Gi
901:Juno-60
896:JP-8000
371:Storage
273:Hi tom
129:Effects
118:Storage
100:Digital
1596:V-MODA
1581:D-Beam
1516:Organs
1434:MKS-80
1429:MKS-20
1414:JD-990
1361:SP-808
1356:SP-606
1351:SP-555
1346:SP-505
1341:SP-404
1336:SP-303
1331:SP-202
1295:SP-808
1290:SP-606
1285:SP-555
1280:SP-505
1275:SP-404
1270:SP-303
1265:SP-202
1224:SP-808
1219:MC-909
1214:MC-808
1209:MC-505
1204:MC-307
1199:MC-303
1164:
1141:TR-505
1131:TR-909
1126:TR-808
1121:TR-606
1096:DDR-30
1061:VP-330
1036:TB-303
1006:SH-201
1001:SH-101
976:RS-202
971:MC-202
966:JX-305
916:Juno-G
911:Juno-D
886:JD-800
881:GR-500
876:GR-300
761:
714:
706:
491:Roland
264:Snare
253:Crash
211:TR-606
207:TR-707
203:TR-808
120:memory
66:(1986)
62:$ 318
22:TR-505
1574:Other
1459:U-220
1454:U-110
1444:SC-55
1439:MT-32
1326:XP-80
1321:XP-50
1260:S-220
1240:DJ-70
1091:CR-78
1066:XP-30
1016:SH-3A
991:S-220
961:JX-10
956:JX-8P
951:JX-3P
891:JD-XA
261:Kick
256:Ride
250:Clap
59:Price
51:Dates
1591:Boss
1549:HM-2
1544:DS-1
1528:VK-8
1523:VK-7
1382:MC-8
1377:MC-4
1316:W-30
1255:S-50
1250:S-10
1245:MS-1
1162:AX-7
1041:U-20
986:S-50
981:S-10
871:GR-1
866:E-20
861:D-70
856:D-50
759:ISBN
712:OCLC
704:ISSN
682:2020
638:2020
608:2020
498:2024
447:2020
188:MIDI
186:and
178:The
1116:R-8
1111:R-5
91:N/A
1613::
1194:D2
710:.
698:.
673:.
657:13
655:.
629:.
616:^
599:.
572:.
560:^
528:^
518:.
506:^
489:.
473:12
471:.
455:^
437:.
418:.
406:^
226:.
205:,
201:,
133:No
112:No
64:US
829:e
822:t
815:v
765:.
718:.
684:.
640:.
610:.
574:1
520:1
500:.
449:.
420:6
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