(The following was originally a reply to Cheapskate's post #7949 regarding Vivaldi's "Four Seasons" and audio quality. I'm posting this as a new topic in order to generate discussion on this topic.)
Of interest to classical mp3 audiophiles...
As a producer and compressed-audio developer I'm intimately familiar with the IPO's "Four Seasons" recording mentioned, and have used it for many years as a benchmark in my work. On the recent occasion of Zubin Mehta's 70th birthday I was honored to present to him a Compaxx Masterworks historical restoration of this wonderful performance, both in CD as well as Compaxx-enhanced mp3. In the past I've also presented this to the late Isaac Stern, whose input was invaluable.
In developing the Compaxx restoration/enhancement mp3 process I've utilized extended forensic techniques to recover vital music data actually embedded in classical recordings, but previously unplayable on stereos due CD format limitations. This information includes harmonics, subtonics, sympathetic vibrations, and spatial cuing vital to an authentic reproduction of the original live performance experience. By embedding this information within subcode and prepacketing for compression it IS possible to provide playback in mp3 format far beyond the capability of CD.
If you'd like to hear a sample of this work in both its original as well as Compaxx-restored version, please click Compaxx Classical Benchmarks to stream these samples. On the Compaxx Masterworks benchmark comparison & info page you'll also find dozens of other benchmark samples of well-known pieces in many categories.
I'd be delighted to receive your feedback here. A tough audience always makes for the best gig.
Regards to all Stereophiles,
Tuvia Wertheim, Compaxx Producer & Stationmaster
Compaxx Masterworks is a private non-profit foundation dedicated to promoting excellence in compressed digital audio production
Compaxx Masterworks benchmark comparison & info page
Compaxx Classical Masterworks - Producer's Private Listening Lounge: Hundreds of hours of feature-length classical masterpieses, all Compaxx-remastered for top-end playback. Available in 192k, 56k, and 32k. http://www.compaxx.org/php/00pvt.php <- paste to new browser window and click Enter
Compaxx Classical Masterworks personal broadcast on Live365