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Maybe so, but I hear differences sufficient to have made lazy old me take time to investigate this. Steve Smolian ========================= Steven Smolian 301-694-5134 Smolian Sound Studios --------------------------------------------------- CDs made from old recordings, Five or one or lifetime hoardings, Made at home or concert hall, Text and pics explain it all. at www.soundsaver.com ========================= ----- Original Message ----- From: "Mike Richter" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, March 19, 2003 4:45 PM Subject: Re: [ARSCLIST] CD Burners > At 03:38 PM 3/19/2003 -0500, Steven Smolian wrote: > >Has anyone checked for differences in audio quality between the original and > >the copy? I've notices recognizible changes caused by CD writing software > >that is often blamed on the writer. > > > >I'm now well convinced that Roxio 5, full version, whatever they call it, > >"softens" some attacks and spreds some notes in lower frequencies. I get > >tighter sound that more accurately reflects what I hear when playing back a > >Sound Forge sound file from Magix Audio Cleaing Lab 3.0. > > > >What we hear is subjective and often does not show up in anything that can > >be measured. Nevertheless, I've done serious a/b testing here enough to > >convice me to change. > > > >I've not seen this issue addressed elsewhere. > > You may have convinced yourself of the difference, but it cannot occur. If > you begin with a "redbook" WAV, the software merely rearranges the bits to > make the data stream that is recorded. The software does not alter > frequency response, dynamics, separation or anything else in the audio > stream. There are issues when a non-redbook file (e.g., monaural or 22.05 > ksps) is written directly, but if you begin with a 44.1 ksps, two-channel, > 16-bit, uncompressed PCM WAV, you will be able to retrieve it perfectly if > the recorder writes perfectly to your chosen medium at your chosen speed. > > I have proved that a WAV file recorded with ECDC 5 (and other programs) to > an audio disc can be extracted (using Exact Audio Copy to correct for > offset) to a WAV file which matches the original in every bit. > > > Mike > [log in to unmask] > http://www.mrichter.com/