A group of researchers has claimed success at cracking four digital audio watermarking technologies presented in a challenge by the <A HREF="http://www.sdmi.org/">Secure Digital Music Initiative</A> in September. The claim has been denied by David Leibowitz, chairman of <A HREF="http://www.verance.com/">Verance Corporation</A>, creator of one of the challenged watermarks. SDMI has made no public statement on the claim, and has resolved to remain silent until all 447 submitted hacks are evaluated.

Five years after opening a research office in Moscow, <A HREF="http://www.bmg.de/">BMG Entertainment</A> has launched an affiliate called BMG Russia OOO, which will work from the capital. The intent is to develop the Russian market for BMG products, discover and sign new musical talent&mdash;and combat piracy.

It's a brave new audio world: Coinciding with last week's release of Medeski, Martin & Wood's latest work, <I>The Dropper</I>, to retailers' shelves as a polycarbonate-and-aluminum CD, <A HREF="http://www.liquidaudio.com">Liquid Audio</A> announced that the title was simultaneously being made available as a full-album digital download. Liquid reports that this is the first time a <A HREF="http://www.bluenote.com">Blue Note</A> title has been released in a digital format at the same time as its physical release.

According to the latest figures from the <A HREF="http://www.ce.org">Consumer Electronics Association</A> (CEA), the month of August showed positive gains in the overall factory sales of audio products to dealers. The CEA reports that sales for the month rose six percent compared to the same period last year, resulting in year-to-date sales of $5.3 billion, an 11.2% rise over last year.

A much-touted benefit of DVD-Audio and Super Audio CD is that these new media can store digital audio data extending one or more octaves higher in frequency response than the capabilities of the CD. In the August issue's "Industry Update" (pp.27-29), Paul Messenger reported on an add-on supertweeter from English manufacturer Tannoy that would extend the ultrasonic response of loudspeakers so they can reproduce this new information. Putting to one side for now the issue of whether a loudspeaker really needs to be able to reproduce frequencies that no one can hear, the subject of how much ultrasonic content is present in real musical signals is still a contentious one.

A much-touted benefit of DVD-Audio and Super Audio CD is that these new media can store digital audio data extending one or more octaves higher in frequency response than the capabilities of the CD. In the August issue's "Industry Update" (pp.27-29), Paul Messenger reported on an add-on supertweeter from English manufacturer Tannoy that would extend the ultrasonic response of loudspeakers so they can reproduce this new information. Putting to one side for now the issue of whether a loudspeaker really needs to be able to reproduce frequencies that no one can hear, the subject of how much ultrasonic content is present in real musical signals is still a contentious one.

A much-touted benefit of DVD-Audio and Super Audio CD is that these new media can store digital audio data extending one or more octaves higher in frequency response than the capabilities of the CD. In the August issue's "Industry Update" (pp.27-29), Paul Messenger reported on an add-on supertweeter from English manufacturer Tannoy that would extend the ultrasonic response of loudspeakers so they can reproduce this new information. Putting to one side for now the issue of whether a loudspeaker really needs to be able to reproduce frequencies that no one can hear, the subject of how much ultrasonic content is present in real musical signals is still a contentious one.

A much-touted benefit of DVD-Audio and Super Audio CD is that these new media can store digital audio data extending one or more octaves higher in frequency response than the capabilities of the CD. In the August issue's "Industry Update" (pp.27-29), Paul Messenger reported on an add-on supertweeter from English manufacturer Tannoy that would extend the ultrasonic response of loudspeakers so they can reproduce this new information. Putting to one side for now the issue of whether a loudspeaker really needs to be able to reproduce frequencies that no one can hear, the subject of how much ultrasonic content is present in real musical signals is still a contentious one.

A much-touted benefit of DVD-Audio and Super Audio CD is that these new media can store digital audio data extending one or more octaves higher in frequency response than the capabilities of the CD. In the August issue's "Industry Update" (pp.27-29), Paul Messenger reported on an add-on supertweeter from English manufacturer Tannoy that would extend the ultrasonic response of loudspeakers so they can reproduce this new information. Putting to one side for now the issue of whether a loudspeaker really needs to be able to reproduce frequencies that no one can hear, the subject of how much ultrasonic content is present in real musical signals is still a contentious one.

A much-touted benefit of DVD-Audio and Super Audio CD is that these new media can store digital audio data extending one or more octaves higher in frequency response than the capabilities of the CD. In the August issue's "Industry Update" (pp.27-29), Paul Messenger reported on an add-on supertweeter from English manufacturer Tannoy that would extend the ultrasonic response of loudspeakers so they can reproduce this new information. Putting to one side for now the issue of whether a loudspeaker really needs to be able to reproduce frequencies that no one can hear, the subject of how much ultrasonic content is present in real musical signals is still a contentious one.