283:, meaning the head does not precisely follow the tracks on the tape. Instead, the head moves over the tape at approximately the correct angle and speed, but performs more than one pass over each track. The data in each track is stored on the tape in blocks with addressing information that enables reconstruction in memory from several passes. This considerably reduced the required mechanical precision, reducing the complexity, size, and cost of the recorder.
25:
129:
311:
direction at the end of the reel without an interruption in the sound. The recorder uses a single "AA"-size cell for primary power, plus a separate CR-1220 lithium cell to provide continuous power to the real-time clock. The Sony NT-2, an improved successor to the Sony NT-1 Digital Micro
Recorder, introduced in 1996, was the final machine in the series.
303:
257:
314:
NT cassettes were used in the film industry and law enforcement, as the quality was superior to most portable audio recorders in that time period. The data portion embedded in the recording made it an excellent choice for law enforcement in addition to recording to a proprietary tape in a proprietary
310:
The Sony NT-1 Digital Micro
Recorder, introduced in 1992, features a real-time clock that records a time signal on the digital track along with the sound data, making it useful for journalism, police and legal work. Due to the machine's buffer memory, it is capable of automatically reversing the tape
318:
As digital technology evolved, and became accepted in US court systems, the NT2 was replaced by devices that recorded to internal drives and removable digital media. The new media was much more cost-effective, and yielded premium quality audio recordings at a lesser cost. It was also easier to make
322:
Rebranded NT cassettes were used as the storage medium in the
Datasonix Pereos backup system from 1994, claiming a capacity of up to 1.25 gigabytes per tape. Due to overhead and variable data compression ratios, the actual amount of data stored could be significantly below a gigabyte.
290:, which means instead of having a mechanism to pull the tape out of the cassette and wrap it around the drum, the drum is pushed inside the cassette to achieve the same effect. This also significantly reduces the complexity, size, and cost of the mechanism.
293:
Audio sampling is in stereo at 32 kHz with 12 bit nonlinear quantization, corresponding to 17 bit linear quantization. Data written to the tape is packed into data blocks and encoded with LDM-2 low deviation modulation.
1625:
276:. The cassettes are offered in three versions: The Sony NTC-60, -90, and -120, each describing the length of time (in minutes) the cassette can record.
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with a tape width of 2.5 mm, with a recording capacity of up to 120 minutes similar to
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Himeno, Takuji (1993). "High-density magnetic tape recording by a nontracking method".
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court admissible copies utilizing other media, besides NT2 cassettes.
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Article on the
Datasonix Pereos at the Museum of Obsolete Media
355:
264:
The system was an R-DAT based system which stored memos using
18:
404:
Review of Sony NT-1 Scoopman and technical data (in German)
335: – Digital audio cassette format developed by Sony
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225:) is a digital memo recording system introduced by
206:
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138:
49:. Unsourced material may be challenged and removed.
232:The NT system was introduced to compete with the
133:NT cassette compared to various recording media
455:
402:http://www.praktiker.at/download/lepau604.pdf
8:
260:NT cassette compared to various memory cards
121:
1328:
521:
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448:
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380:
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127:
109:Learn how and when to remove this message
708:Tefiphon/Teficord (early 1930s), Tefifon
427:Datasonix Pereos Cassette Backup System
345:
16:Audio cassette format developed by Sony
268:on special microcassettes, which were
120:
7:
47:adding citations to reliable sources
286:Another feature of NT cassettes is
221:(sometimes marketed under the name
386:The World's Smallest Cassette Tape
14:
1626:Audiovisual introductions in 1992
1570:Pioneer Artists Compact LaserDisc
1020:Mohawk Message repeater cartridge
414:https://obsoletemedia.org/pereos/
306:Sony NT-2 Digital Micro Recorder
23:
1098:Nippon Electronic Vity cassette
809:Cosmos Industries MX-303A/ANQ-1
34:needs additional citations for
1:
894:Thermionic Products Recordon
1281:Analog-to-digital converter
1188:Nippon Electronic Memo-call
188:Rotating head, helical scan
1647:
1631:Discontinued media formats
1404:Compact Disc Digital Audio
488:Music box cylinder or disc
1104:Grundig Cassette LFH 0084
883:
126:
1354:Digital Compact Cassette
1242:Capitol Records Audiopak
1092:Dictaphone Travel master
888:Telefunken magnetic disc
857:Crouzet-Jaeger cartridge
1170:Assmann-Stuzzi Memocord
851:Protona Minifon special
472:audio recording formats
367:10.1002/ecjb.4420760510
1254:Bandai micro cartridge
1200:Muntz Stereo Mini-twin
307:
270:30 mm Ă— 21.5 mm Ă— 5 mm
261:
143:Magnetic cassette tape
1122:Cousino Echo-matic II
602:Indestructible record
305:
259:
1218:Sanyo Tape cartridge
1044:Rediffusion Reditune
923:Loose (reel-to-reel)
874:Magnetic stripe card
803:US Army RD-11B/GNQ-1
568:Perfected phonograph
496:(early 17th century)
43:improve this article
1616:Digital electronics
1032:Mohawk Midgetape RL
845:Protona Minifon P55
839:Protona Minifon P51
614:Blue Amberol record
596:Gold moulded record
590:Le CĂ©leste cylinder
562:Dictaphone cylinder
552:Phonograph cylinder
123:
1487:Electronic circuit
1342:Digital Audio Tape
1056:RCA tape cartridge
1014:Cousino Echo-matic
912:Audio High Density
661:Edison Voicewriter
333:Digital Audio Tape
308:
274:Digital Audio Tape
262:
58:"NT" cassette
1603:
1602:
1546:
1545:
1275:
1274:
1110:Orrtronic Tapette
1038:Dictaphone Dictet
637:Phonograph record
494:Mechanical cuckoo
216:
215:
119:
118:
111:
93:
1638:
1329:
1182:DC-International
1140:Compact cassette
958:Fullcoat magfilm
900:Record Maker Pye
867:Magnetic surface
797:Lorenz Textophon
620:Paradis cylinder
584:Stentor cylinder
522:
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236:, introduced by
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1604:
1599:
1542:
1531:USB flash drive
1525:Toymax VJ Starz
1481:
1390:
1359:
1318:
1271:
1134:Philips EL 3583
1080:Cousino MR-9000
1068:Protona Attaché
1062:Philips EL 3581
993:
917:
879:
862:
781:
766:Loose magnetic
761:
718:
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525:Grooved surface
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1588:Timecode vinyl
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1434:Super Audio CD
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1410:Philips CD-BGM
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1266:Pocket Rockers
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1230:Steno-Cassette
1227:
1221:
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1209:
1206:Grundig DeJ614
1203:
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964:Stripe magfilm
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833:Peirce 330/360
830:
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776:Wire recording
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655:Pathé Actuelle
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608:Amberol record
605:
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578:Salon cylinder
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279:NT stands for
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1621:Sony products
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1559:
1558:Mini-cassette
1556:
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1520:
1519:Takara E-kara
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1365:Sound-on-film
1362:
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1333:Magnetic tape
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1237:
1236:Stenorette DL
1234:
1231:
1228:
1225:
1222:
1219:
1216:
1213:
1212:Microcassette
1210:
1207:
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1198:
1195:
1192:
1189:
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1183:
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1168:
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1164:Micro pack 35
1162:
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1117:
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1096:
1093:
1090:
1087:
1086:IBM Magnabelt
1084:
1081:
1078:
1075:
1072:
1069:
1066:
1063:
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1033:
1030:
1027:
1024:
1021:
1018:
1015:
1012:
1009:
1006:
1005:
1003:
1000:
999:Magnetic tape
996:
989:
986:
983:
980:
977:
974:
971:
968:
965:
962:
959:
956:
953:
950:
947:
944:
941:
938:
935:
934:Blattnerphone
932:
931:
929:
927:
926:magnetic tape
924:
920:
913:
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907:
904:
901:
898:
895:
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875:
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795:
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784:
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769:
764:
757:
754:
751:
748:
745:
742:
739:
736:
733:
730:
729:
727:
725:
724:Sound-on-film
721:
714:
711:
709:
706:
705:
703:
699:
692:
689:
686:
685:Highway Hi-Fi
683:
680:
677:
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659:
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533:
530:
529:
527:
523:
520:
518:
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507:
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501:
498:
495:
492:
490:(9th century)
489:
486:
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481:
477:
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297:
295:
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277:
275:
267:
258:
251:
249:
247:
243:
242:Mini-Cassette
239:
235:
234:Microcassette
230:
228:
224:
220:
212:
209:
205:
202:
199:
191:
187:
179:
176:Rotating head
175:
167:
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159:
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153:
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113:
110:
102:
91:
88:
84:
81:
77:
74:
70:
67:
63:
60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
1497:(late 1970s)
1396:Optical disc
1347:
1260:Picocassette
1256:(late 1980s)
1050:Saba Sabafon
821:RCA MI-12877
815:RCA MI-12875
701:Grooved tape
667:SoundScriber
663:(late 1940s)
649:Diamond disc
630:Grooved disc
532:Phonautogram
500:Punched card
421:
409:
397:
361:(5): 83–93.
358:
354:
348:
321:
317:
313:
309:
292:
287:
285:
281:Non-Tracking
280:
278:
266:helical scan
263:
231:
222:
218:
217:
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
1307:PCM adaptor
1295:X80/ProDigi
1289:Soundstream
1176:Cantata 700
1146:Grundig En3
940:Magnetophon
827:Peirce 265B
691:Bandai 8ban
558:Graphophone
288:Non-Loading
164:120 minutes
1610:Categories
1513:Yaboom Box
1501:MP3 player
1495:Sound chip
1313:DA-88/DTRS
1128:Stereo-Pak
1026:Stenorette
906:Synchrofax
756:Fantasound
750:Photophone
643:Pathé disc
506:Music roll
480:Mechanical
340:References
240:, and the
139:Media type
99:March 2007
69:newspapers
1594:VinylDisc
1440:DVD-Audio
1335:cartridge
1152:Sabamobil
1116:3M Scotch
1074:Fidelipac
1001:cartridge
982:3/4" tape
952:1/2" tape
946:1/4" tape
790:cartridge
786:Magnetic
744:Movietone
738:Tri-Ergon
732:Phonofilm
713:Dictabelt
679:Long play
673:Audograph
470:Physical
229:in 1992.
211:dictation
193:Developed
185:mechanism
173:mechanism
1576:CD Video
1507:HitClips
1464:BD-Audio
1458:DualDisc
1446:DataPlay
1416:MiniDisc
1194:PlayTape
1008:Optaphon
572:Ediphone
544:cylinder
542:Grooved
327:See also
315:format.
223:Scoopman
161:Capacity
150:Encoding
1564:U-matic
1537:MicroSD
1324:Digital
1248:Elcaset
1158:8-track
988:3" tape
976:2" tape
970:1" tape
592:(1890s)
586:(1890s)
580:(1890s)
432:YouTube
391:YouTube
246:Philips
238:Olympus
155:digital
83:scholar
1596:(2007)
1590:(2001)
1584:(1991)
1578:(1987)
1572:(1986)
1566:(1971)
1560:(1967)
1551:Hybrid
1539:(2007)
1533:(2004)
1527:(2002)
1521:(2001)
1515:(1999)
1509:(2000)
1503:(1996)
1478:(2014)
1476:MQA-CD
1472:(2013)
1466:(2008)
1460:(2004)
1454:(2004)
1448:(2002)
1442:(2000)
1436:(1999)
1430:(1995)
1424:(1993)
1418:(1992)
1412:(1989)
1406:(1982)
1387:(1993)
1381:(1990)
1375:(1986)
1356:(1992)
1350:(1992)
1344:(1987)
1315:(1993)
1309:(1982)
1303:(1982)
1297:(1980)
1291:(1976)
1268:(1988)
1262:(1985)
1250:(1976)
1244:(1972)
1238:(1972)
1232:(1971)
1226:(1971)
1220:(1969)
1214:(1969)
1208:(1968)
1202:(1967)
1196:(1966)
1190:(1965)
1184:(1965)
1178:(1965)
1172:(1965)
1166:(1964)
1160:(1964)
1154:(1964)
1148:(1964)
1142:(1963)
1136:(1963)
1130:(1962)
1124:(1962)
1118:(1962)
1112:(1962)
1106:(1962)
1100:(1961)
1094:(1961)
1088:(1961)
1082:(1960)
1076:(1959)
1070:(1959)
1064:(1958)
1058:(1958)
1052:(1958)
1046:(1957)
1040:(1957)
1034:(1955)
1028:(1954)
1022:(1953)
1016:(1952)
1010:(1951)
990:(1978)
984:(1969)
978:(1967)
972:(1957)
966:(1953)
960:(1953)
954:(1953)
948:(1949)
942:(1935)
936:(1928)
914:(1978)
908:(1959)
902:(1953)
896:(1948)
890:(1945)
876:(1900)
859:(1962)
853:(1961)
847:(1955)
841:(1951)
835:(1951)
829:(1951)
823:(1947)
817:(1947)
811:(1944)
805:(1944)
799:(1942)
778:(1898)
758:(1940)
752:(1929)
746:(1926)
740:(1922)
734:(1919)
715:(1947)
693:(2004)
687:(1956)
681:(1948)
675:(1945)
669:(1945)
657:(1920)
651:(1912)
645:(1905)
639:(1889)
622:(1913)
616:(1912)
610:(1908)
604:(1907)
598:(1902)
574:(1888)
564:(1887)
554:(1877)
534:(1857)
517:Analog
508:(1883)
502:(1881)
252:Design
195:
183:
171:
85:
78:
71:
64:
56:
1452:Hi-MD
1224:HiPac
244:, by
207:Usage
181:Write
90:JSTOR
76:books
1582:ADAT
1470:HFPA
1428:HDCD
1385:SDDS
1301:DASH
788:wire
768:wire
298:Uses
227:Sony
201:Sony
169:Read
62:news
1422:DTS
1379:CDS
430:on
389:on
363:doi
45:by
1612::
1373:DD
1348:NT
375:^
359:76
357:.
248:.
219:NT
197:by
122:NT
570:/
560:/
463:e
456:t
449:v
369:.
365::
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
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