Xref: utzoo rec.audio:7381 sci.electronics:3390 Path: utzoo!utgpu!water!watmath!clyde!att!pacbell!ames!ll-xn!mit-eddie!uw-beaver!fluke!strong From: strong@tc.fluke.COM (Norm Strong) Newsgroups: rec.audio,sci.electronics Subject: Re: Restoration Keywords: loudspeaker, speaker, bibliography Message-ID: <4528@fluke.COM> Date: 21 Jul 88 14:27:31 GMT References: <1309@kodak.UUCP> <6198@aw.sei.cmu.edu> <2585@obiwan.mips.COM> <430@cb.ecn.purdue.edu> <4944@husc6.harvard.edu> <2266@pt.cs.cmu.edu> <4867@vdsvax.steinmetz.ge.com> Sender: news@tc.fluke.COM Organization: John Fluke Mfg. Co., Inc., Everett, WA Lines: 22 In article <4867@vdsvax.steinmetz.ge.com> vdsvax!thearlin@steinmetz.UUCP (Thearling) writes: } }>In article (Paul Gallagher) writes: }>Here's a question maybe someone out there can answer: }>Why isn't it possible to completely restore a recording: for example, }>to removeall extraneous noise (hiss, clicks, coughs) }> } }I recall seeing something on TV (PBS?) about the recording restoration }lab at the New York Public Library. They have loads of equipment to }do just this. From what I remember, they spend most of their time }restoring old cylinder and 78 recordings. } A company named Sonic Solutions has come up with a rather complicated computer program for removing noise, etc from old recordings. It doesn't operate in real time; in fact, it takes all night to clean up one side of a 78 at a rate of 54 million computations per second. (sounds fast to me.) What do they call this process? No Noise, of course. -- Norm (strong@tc.fluke.com)