音频信息隐藏算法的研究与实现-翻译.docx
- 文档编号:264606
- 上传时间:2022-10-08
- 格式:DOCX
- 页数:17
- 大小:29.04KB
音频信息隐藏算法的研究与实现-翻译.docx
《音频信息隐藏算法的研究与实现-翻译.docx》由会员分享,可在线阅读,更多相关《音频信息隐藏算法的研究与实现-翻译.docx(17页珍藏版)》请在冰豆网上搜索。
苏州大学本科生毕业设计(论文)附件:
外文文献资料与中文翻译稿
外文文献资料
收集:
苏州大学应用技术学院 11电子班(学号1116405046)汤珏
MULTI-CHANNELAUDIOINFORMATIONHIDINGABSTRACT
Weconsideramethodofhidingmanyaudiochannelsinonehostsignal.Thepurposeofthisistoprovidea‘mix’thatincorporatesinformationonallthechannelsusedtoproduceit,therebyallowingall,or,atleastsomechannelstobestoredinthemixforlateruse.Afterprovidinganoverviewofsomerecentlypublishedaudiowatermarkingschemesinthetimeandtransformdomains,wepresentamethodthatisbasedonusingafourleastsignificantbitsschemetoembedfiveMP3filesintoasingle16-bithoststereoWAVfilewithoutincurringanyperceptualaudiodistortionsinthehostdata.ThehostWAVfileistakentobethefinalmixassociatedwiththeoriginaldatabeforeapplying‘loseMP3’compressionoralternativelyanarbitraryhostaudiosignalintowhichothermultichannelaudiodataishidden.Further,theembeddedinformationcanbeencryptedand/ortheembeddinglocationsrandomizedonachannelbychannelbasisdependingontheprotocoldesiredbytheuser.Themethodisillustratedbyprovidingexamplem-codeforinterestedreaderstoinvestigateandreproducetheresultsobtainedtodateandasabasisforfurtherdevelopment.
1.INTRODUCTION
Theapproachtoinformationhidingdiscussedinthispaperrelatestoaninvestigationintothedesignof‘intelligent’codingalgorithmsforaudiopost-productionbasedonacurrentFP7researchproject.TheresearchhasandiscontinuingtobeundertakenjointlybetweentheAudioResearchGroup,theDigitalMediaCentreatDublinInstituteofTechnologyandTamborineProductionsLimited.Thisincludestheuseof
第0页
watermarkingmethodsforaudiosignalauthenticationandmultipleaudiosignalembeddingtechniquesusingcomputationalsolutionsbasedonimageinformationhidingandauthenticationtechniques,e.g.
Whilethereareanumberofdifferentapproachesforhidingasignalinanotherhostsignal,inclusiveofencryption,orotherwise,therearerelativelyfewpublishedmethodsthatconsideramulti-signaltosinglehostsignalapproach.InthispaperweconsidertheproblemofembeddingmanyaudiosignalsprovideasinMP3formatsintoasinglewaveofWAVfileunderthefollowingconditions:
(i)theembeddedMP3audiodatacanberecoveredwithoutanylossofinformation;(ii)thehostsignalhasnoperceptualchangeinitsaudiofidelity.AnalgorithmispresentedbasedonatimedomainmethodinwhichfiveMP3filesarehiddeninasingleWAVfileusingafourleastsignificantbitschemewhichsatisfiestheseconditions.
Themethodconsideredhasapplicationsincovertinformationtransmissionwithapplicationsinareassuchascommunicationssecurity,signalauthenticationandDRM(DigitalRightsManagement),forexample.However,themethodreportedhasbeendevelopedinthecontextofanaudiopost-productionproducttoallowsastereo‘mix’toincorporateinformationonallorsomeofthechannelsusedtoproducethesamemix,therebyallowingallorselectivechannelstobeembeddedinthemixforremixingatalaterdateand/orfordatastorage.Currentscenariosusuallyinvolvesapost-productioncentrehavingtomaintainrecordsofallthedatausedtogenerateamixwiththeviewthatthissamedatamayberequiredatalaterdate,therebynecessitatingtheneedforadatabasemanagementinfrastructurewhichmayrequiresignificantoverheads.
Afterprovidinganoverviewofrecentlypublishedworksthatfocus
ontheareaofaudioinformationhiding(Section2),wepresentatimedomainsolutiontotheprobleminSection3.Thisincludesprototypem-codeforinterestedreaderstotestthealgorithmsforthemselvesandasa
第16页
basisfordevelopingthemethodologyfurther.
2.AUDIOINFORMATIONHIDING
AudioinformationhidingorAudioSteganographyisbasedontwospecificanddistinctapproacheswhichconsiderthedevelopmentofalgorithmsusingtimedomaindataortransformdomaindatasuchastheconsinetransform,forexample.Inthissection,weprovideabriefoverviewofsomeofthemostrecentlypublishedmaterialinthisarea,publicationsthathavebeenstudiedbytheauthor’sinassociationwiththemulti-channelinformationhidingapproachconsideredinthispaper.
2.1.AudioHidingintheTimeDomain
Timedomainaudiohidinghastheadvantageofbeingrelativesimpletoimplementandcomputationallyefficient.Howevertheapproachdoesnotyieldalgorithmsthatareasdiverseandrobustasthosedevelopedforthetransformdomain.Thisisbecauseoftherelativelylimitednumberofwaysinwhichdatacanbemanipulatedinthetimedomainsubjecttothegenerationofanoutputthatisperceptuallycompatiblewiththeoriginalaudiosignal.Intheliteraturesurveythatfollows,itisclearthatallthemethodsconceivedarebasedonsomeformofdatamanipulationb
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 音频 信息 隐藏 算法 研究 实现 翻译
![提示](https://static.bdocx.com/images/bang_tan.gif)