As I wrote in the January issue's "As We See It," Master Quality Authenticated (MQA), the encoding/decoding system developed by J. Robert (Bob) Stuart and Peter Craven, has been widely criticized, despite reports in this magazine and others that MQA-encoded files tend to sound better than the PCM originals from which they were derived. Also in last month's issue, Jim Austin investigated the time-domain performance of the MQA reconstruction filter and I examined some of the more general aspects, ending with: "Other criticisms of MQA involve its implications for the recording industry, for manufacturers of audio products, and for consumers. I will examine those in next month's 'As We See It.'"
Master Quality Authenticated (MQA), the audio codec from industry veterans Bob Stuart and Peter Craven, rests on two pillars: improved time-domain behavior, which is said to improve sound quality and what MQA Ltd. calls "audio origami," which yields reduced file size (for downloads) and data rate (for streaming). Last month I took a first peek at those time-domain issues, examining the impulse response of MQA's "upsampling renderer," the output side of this analog-to-analog system (footnote 1). This month I take a first look at the second pillar: MQA's approach to data-rate reduction. In particular, I'll consider critics' claims that MQA is a "lossy" codec.
Recently, at a performance of the Metropolitan Opera's fabulous current production of Jacques Offenbach's The Tales of Hoffmann, directed by Bartlett Sher, I experienced Classical Music 2017 up close and personal. In the audience, multicolored sequined jackets and cheetah-print slip-on sneakers mixed with tuxedos. Merrell hiking shoes and Patagonia down jackets crossed with slim-fit outfits from Billy Reid and Hermes bags. Between bravura tenor Vittorio Grigolo in the title role and soprano Erin Morley's absolutely wonderful portrayal of the doll, Olympia (Bravo!!!), it was a performance for the ages. None of the recordings I've heard come close.
I'm sitting next to Ron Carter in the listening room at Manhattan dealer Audioarts, trying not to cry. We're listening to "All Blues," the title track from Carter's 1974 CTI releasea meditative rendition of the Miles Davis masterpiece that has been slowed-down and elongated in such a way that it practically pulls tears from eyes as easily as Carter pulls notes. It's hard to believe that anyone other than Carter has ever touched this piece. Right now, it belongs entirely to him. The system through which we listen is doing a fine job of articulating Carter's distinct combination of purpose and passion. To describe his performance as mere magic would be an insult to his craft, yet to focus too heavily on his discipline would be an injustice to his art.