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The material explains how DAT delivers CD-equivalent or better sound quality, high dynamic range, wide flat reproduction bandwidth, low distortion, strong S/N performance, and resistance to sound quality loss during dubbing and recording-level fluctuation. It also compares DAT with analog audio cassettes via recording method, frequency characteristics, distortion, and search speed, and describes the helical-scan mechanism, rotary heads, digitized pulse recording, and signal types such as PCM music, subcodes, and automatic track finding.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/dat-questions-answers-the-encyclopedia-of-scms-dat/291122/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/dat-questions-answers-the-encyclopedia-of-scms-dat/291122.png","ImageObject",300,407,{"name":92,"@type":93},"Aurelia","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-09-17",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does DAT stand for, and what system does it describe?","Question",{"text":112,"@type":113},"DAT stands for digital audio-tape recorder, a digital recording and playback system using special cassette tapes and a deck capable of digital sound recording and reproduction.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What are the chief characteristics of a DAT?",{"text":117,"@type":113},"DAT offers CD-equivalent or superior sound quality, smaller cassette size with up to two hours standard recording/playback (four hours maximum), excellent operability and search, no sound quality deterioration through dubbing, usability aided by subcodes, and globally uniform standards.",{"name":119,"@type":110,"acceptedAnswer":120},"How does DAT differ from a conventional analog audio cassette?",{"text":121,"@type":113},"DAT uses digital recording rather than analog, provides a much wider frequency range (2Hz to 22kHz vs. 40 to 18kHz), improves S/N ratio (96dB vs. 68dB with Dolby B on), greatly reduces distortion, and supports much faster search (about 200x vs. about 20x).","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},291122,1789643517,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},1099514068365,"https://ap-avatar.wpscdn.com/avatar/10000253d8d9f28188e?_k=1776742907772140068","# Introduction to DAT\n\nQ1.What is a DAT?  \nQ2.What are the chiefcharacteristics of aDAT?  \nQ3.Specifically,whatdoes DAT offer interms of sound quality?  \n## 04.In what other waysdoes a DAT cassettediffer from a conven-tional audio cassettedeck?\n\n# DAT Questions &Answers\n\nTHE ENCYCLOPEDIA OFSCMS DAT  \n·DATstands for digital audiotape recorder—a new recording and playback system using specialcassette tapes and a deck capable of digital sound recording and reproduction  \n·DATs are superior in sound quality,functions and operability to conventional analog record-ing systems.Along with CDs,they are expected to become a core technology of the new eraof digital audio.  \n·It is predicted that,just as LP and EP records now are being replaced by CDs,digital audio-tape will soon supersede ordinary audio cassette tapes as the mainstream recording medium.  \n● DAT's chief characteristics are as follows:  \n(1)Sound quality equivalent or superior to that of a CD.  \n(2)Smaller size than ordinary cassettes;two hours of continuous recording or playback in thestandard mode.(A maximum of four hours of recording or playback is possible with the  \n(3)Outstanding operability including a speedy(several hundred times the normal playback speed)and accurate search function.  \n(4)No deterioration of sound quality through dubbing.  \n(5)Ease of use afforded by subcodes.  \n(6)Globally uniform standards that will enhance future development.  \n(1)DAT has a dynamic range of 96dB or more—broad enough to cover(roughly)the dynamicrange of a live performance by an orchestra.  \n(2)In digital recording,the sampling frequency(fs:the frequency at which the signal is sampledwhen an analog signal is converted to a digital signal)is high.The greater the bit numeralof quantization(digital determination of the amplitude of the sampled signal),the better thesound quality.  \nBecause the DAT sampling frequency is 48kHz and the bit numeral of quantization is 16bits,the sound reproduction frequency band is flat,2 to 22kHz and the high-frequencyreproduction characteristics are superior even to those of a CD.  \n(3)No tape hissing;good S/N ratio.  \n(4)No drum rotation irregularity.  \n(5)Good channel separation.  \n(6)Minimal distortion(0.005 percent or less).  \n(7)The signal can be corrected and compensated for so that the sound will not be interruptedor distorted even if tape dropouts occur.  \n(8)Dubbing does not result in the deterioration of sound quality.  \n·Even if the recording level fluctuates,there is no change in recording characteristics.Moreover,there is no tape modulation noise.In this respect,DATs differ fundamentally from analogsystems.  \nThe characteristics and functions of a DAT cassette differ from those of a conventionalaudio cassette as shown below.  \n\n|  | Audio Cassette   | DAT   |\n| --- | --- | --- |\n| Recording method:   | Analog   | Digital   |\n| Frequency characteristics:   | 40 to 18kHz   | 2Hz to 22kHz   |\n| S/N ratio:   | 68dB(Dolby B on)   | 96dB   |\n| Distortion:   | 0.3%   | 0.005%or less   |\n| Tape size:   | 102.4×63×12(mm)   | 73×54×10.5(mm)   |\n| Recording time:   | Max.2 hrs  \u003Cbr>(double track)   | 2 hrs.  \u003Cbr>(single track)   |\n| Search speed:   | About 20 times faster than  \u003Cbr>playback speed   | 200 times faster than play-  \u003Cbr>back speed   |\n| Tape speed:   | 4.75cm/sec.   | 0.815mm/sec.   |\n\n\n| 05.What are the featur  \u003Cbr>of the DAT  \u003Cbr>mechanism?  \u003Cbr>Q6.How is a DAT recor  \u003Cbr>d-  \u003Cbr>ing made?  \u003Cbr>Q7.other than music si  \u003Cbr>nals,what kinds of  \u003Cbr>signals are recorded  \u003Cbr>on a DAT system?   | DAT Questions &Answers  \u003Cbr>es  \u003Cbr>A DAT,like a VCR,employs a helical-scan rotary head.  \u003Cbr>·The angle of tape winding onto the rotary drum(rotary cylinder)is 90°—smaller than that of  \u003Cbr>a VCR.The load on the tape hence becomes lighter,making it possible to run the tape at high  \u003Cbr>speed while the signal is being read out as the tape maintains contact with the drum.  \u003Cbr>·As a result,rapid search at a speed several hundred times the normal pla","cbCaid41AD55OI1J","https://ap.wps.com/l/cbCaid41AD55OI1J","pdf",956953,11,"English","# Introduction to DAT\n## What is a DAT?\n## Chief characteristics of a DAT\n## Sound quality offered by a DAT\n## How DAT cassette differs from a conventional audio cassette\n# DAT Questions & Answers\n## Chief characteristics and functions of DAT\n## Dynamic range, sampling frequency, and reproduction band\n## Audio cassette vs DAT comparison table\n## Features of the DAT mechanism (questions 05-07)","[{\"question\":\"What does DAT stand for, and what system does it describe?\",\"answer\":\"DAT stands for digital audio-tape recorder, a digital recording and playback system using special cassette tapes and a deck capable of digital sound recording and reproduction.\"},{\"question\":\"What are the chief characteristics of a DAT?\",\"answer\":\"DAT offers CD-equivalent or superior sound quality, smaller cassette size with up to two hours standard recording/playback (four hours maximum), excellent operability and search, no sound quality deterioration through dubbing, usability aided by subcodes, and globally uniform standards.\"},{\"question\":\"How does DAT differ from a conventional analog audio cassette?\",\"answer\":\"DAT uses digital recording rather than analog, provides a much wider frequency range (2Hz to 22kHz vs. 40 to 18kHz), improves S/N ratio (96dB vs. 68dB with Dolby B on), greatly reduces distortion, and supports much faster search (about 200x vs. about 20x).\"}]","DAT Questions & Answers - The Encyclopedia of SCMS DAT | PDF",28]