News

Everyone claims "CD-quality" sound over the Internet these days, but the reality always seems far short of that promise. As a result, work continues to develop an encoding scheme worthy of the CD-quality title. Recently we reported on developments at AT&T regarding the a2b format, and both Liquid Audio and RealNetworks compete on a weekly basis to grab headlines for their audio technology announcements.

PARA, the Professional Audio-Video Retailers Association, is bringing its annual management conference to the Hyatt Regency in Hilton Head, South Carolina, this week. The five-day event, running April 22-27, will focus on improving retail strategies. Representatives from more than 600 retailers, suppliers, and industry publications are expected.

Recently, Analog Devices announced the worldÆs first High Definition Compatible Digital (HDCD) decoder chip with 32-bit internal precision. The ADSP-21061 SHARC programmable digital signal processor will enable HDCD decoding to be incorporated into a wide variety of consumer audio and home-theater products, according to an AD press release dated March 26. The SHARC DSP can perform up to 150 million operations per second, and includes one megabit of onboard memory, six DMA channels, and two serial ports. The highly integrated decoder is claimed to perform HDCD decoding without external memory.

On April 8, Nordic Entertainment Worldwide announced that it has adopted ARIS Technologies' MusiCode audio watermarking system. The Napa, California-based company operates the Downloadable Music Site, one of the Internet's most extensive music archives. MusiCode is an attempt to discourage piracy by embedding signals in recorded music, which can later be extracted for tracking the recordingÆs origin.

"Digital audio quality at analog prices." ThatÆs how Cirrus Logic's Crystal Semiconductor division introduced a chip that may bring a new level of audio performance to a much wider audience. On April 6, Crystal announced its CS4334, an 8-pin, small-outline D/A converter. The 24-bit CS4334 will support sampling rates of up to 96kHz, and is being marketed as a low-cost, high-quality solution for computer, automotive, and portable audio applications, as well as DVD systems and set-top converter boxes. Crystal claims the new chip is the industryÆs smallest delta-sigma DAC.

Not long after the single-disc CD player was introduced, the multidisc changer followed, with products from companies like Sony and Pioneer. Shortly after the changer was introduced, it became the most popular version of the new hardware format. In the past eight years, changers have consistently outsold single-disc machines. The high-end market was characteristically slow to embrace changers, but companies like California Audio Labs have been successful in this category with products like the CL-10, a five-disc carousel changer.