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1、波表合成(Wavetablesynthesis)Areviewofwavetablesynthesistechniques--------------------------------------------------------------------------------Releasetime:2001-05-1015:44:11source:(MIDIenthusiast-www.MidiFan.com)---------------------------------------------------
2、-----------------------------TheoriginalimpressionofMIDIisveryweak,onlyknowthatitissynonymouswithcomputermusic.AtthattimemyESS688ISAsoundcardFMMIDIsynthesiseffectissimply......Thedrumssoundlikeknockingatthebottomofthepot.Thestringsarelikebeescalling,andnomatter
3、whattheinstrumentsare,it'sthesoundofthe100dollartoyorgan.Theonlyadvantageisthatthefilesaresmall.Untiltwoyearsago,thefirstcontactwiththesofttable,atasteofwavetablesynthesiscausedbypower,theauthorbegantobeinterestedinMIDI.Recently,ontheInternettoseefriendsontheso
4、undcardMIDIeffectofthediscussionisverywarm,Icannothelpwritingdownthisarticle.Theauthorstartsfromthebasicconcept,andcombinessomeofhisownexperience,hopingtoprovideareferenceforustounderstandthewavetablesynthesistechnologycomprehensively.I.somepreliminaryconceptsa
5、boutMIDIBeforewegettothepoint,let'sstartwithabriefunderstandingofMIDIandacoupleofpreliminaryconcepts.Thiscanserveasapilotforustounderstandthetechniqueofwavetablesynthesis.1.MIDIprofileMIDIistheabbreviationofMusicalInstrumentDigitalInterface,whichmeansthedigital
6、interfaceofmusicequipment.Itisaunifiedexchangeprotocolbetweenelectronicinstrumentsandelectronicinstrumentsandcomputers.Sinceitsemergenceintheearly80s,ithasundergonealongperiodofdevelopmentandhasnowbecomeabywordforcomputermusic.Wecanbroadlyunderstandthemeaningof
7、electronicsynthesizersandcomputermusic,includingprotocols,devices,andsoon.2.,threestandardsSincetheearlyMIDIequipmentdoesnothaveauniformstandardforthetonearrangementoftheinstrument,thetonedeviationofthesamepieceisalsocausedbytheplaybackofthesamepieceofmusicbydi
8、fferenttypesofequipment.Tomakeupforthisdeficiency,standardsforthearrangementoftonessuchasGS,GM,andXGhaveappeared.GSrankedfirstbecauseitwasfirstintroducedanddevelopedbytheind