Nao se os ouve, mas eles sao imprescindiveis na formacao da cadeia dos Harmonicos de Fourier, Formantes de instrumentos e timbre de vozes. E-mail: joaquim777@gmail.com "Spectral and Dynamics Comparisons of LP's versus digital formats (Part 4 of an on-going series of comparisons).Yes, you have heard all the arguments before, and you are probably sick and tired of it. LP versus digital is a "religious war" that has been played out by various audiophiles ever since the CD format was introduced in the early 1980's."Vinylphiles" claim that CD's do not sound as good as LP's, period. CD's appear to sound "harsh", "unlistenable", "lacking in dynamics", plus a myriad of other "faults." Some vinylphiles even extend this to all digital formats, including the new Super Audio CD and DVD-Audio high resolution formats, whereas others believe the higher resolution formats either equal or at least get closer to the "superior" sound of LP. "Digiphiles" on the other hand laugh at LP's pitiful dynamic range, surface noise, pop and crackle, harmonic distortion, and various other limitations to do with the ability of either the cutting head to master difficult signals onto disc, and the ability of stylii to track them without "jumping." So, are there any evidence to support these claims? Can both parties be right? I was interested to find out if there are any objective evidence that I can gather using my sound card (Audiotrak Prodigy 7.1) and my very old copy of Cool Edit. I am particularly intrigued by vinylphile claims that LPs mastered from a digital recording sound better than that exact same digital recording on CD. Plus, recording an LP onto CD yields most of the benefits of the original LP, and still sound better than the commercially pressed CD.The ApproachI took a few albums from my personal collection that I have on both LP and at least one digital format (CD, SACD, or DVD-A).I selected the following songs from the following albums: Main Titles from the original motion picture soundtrack to Chariots of Fire (Vangelis) o LP (Polydor 2383 602) 1981 Australian PolyGram pressing, purchased second hand o CD (Polydor 800 020-2) 1984 Polyram made in Germany, purchased new, Mick's Blessings from Cafe Bleu (The Style Council) o LP (Polydor 817 535-1) 1984 Australian PolyGram pressing, purchased new o Original CD release (Polydor 817 535-2) 1984 PolyGram made in Germany, purchased new o "Digitally Remastered" CD re-release (Polydor 557 915-2) 2000 Universal made in the EU, purchased new. What's New from What's New (Linda Ronstadt and The Nelson Riddle Orchestra) o LP (Asylum 9 60260) 1983 USA WEA pressing, purchased second hand o DVD-Audio (Elektra/Asylum/Rhino 8122-78341-9 begin_of_the_skype_highlighting 8122-78341-9 end_of_the_skype_highlighting) 2002 Warner Strategic Marketing made in Germany, purchased new; Genesis Ch.1.V.32 from I Robot (The Alan Parsons Project); LP (Arista Code 304 AL.7002) 1977; Australian EMI pressing, purchased second hand o DVD-Audio (Classic HDAD 2003) 2004 Classic USA release, purchased new; More Than This from Avalon (Roxy Music); LP (EG 2311 154) 1982 Australian PolyGram pressing, purchased second hand o Hybrid SACD (Virgin ROXYSACD 9) 2003 Virgin made in Holland, purchased