Monday, March 31, 2014

Onkel Senger Wants YOU!


Our esteemed colleague and DRM enthusiast, Peter Senger wants you to help him get a new run of DR111 receivers manufactured. In addition he is pushing for an initial order of the upcoming DR212 also from CDNSE. This is really exciting news and I hope he can get the needed takers to have these receivers into mass production soon! Viva la DRM revolución! More information here and here.

Saturday, March 15, 2014

DRM General Assembly to be held at BBC in London this month

DRM is in focus as preparations are under way for the General Assembly of the DRM Consortium, scheduled to take place on March 26th and 27th 2014 at the BBC Headquarters in central London, the New Broadcasting House. Under the title “DRM in Action” the Consortium will use this opportunity to highlight the excellent benefits of the DRM standard and the progress it is making around the world, as well as to emphasise the power of digital radio. For more info write pressoffice@drm.org or to read more go here.

Wednesday, February 26, 2014

Exclusive interview with Lars Liljeryd!

In light of the press release from the new Digital Radio Sweden initiative, I decided to reach-out and here is the result! Lars Liljeryd, pioneer in the audio codec world, generously gave us some of his time and we have what I feel to be an excellent, in-depth interview of the man. Enjoy the interview, but wait around here only long enough to read it -  then whisk yourself off to Lars' own page of accomplishments! This guy ROCKS!

Christopher>>>
Lars, please give us some background about yourself. Tell us what you feel are your greatest accomplishments.

Lars>>>
I am a somewhat eccentric technologist and entrepreneur having worked in many areas from hydro acoustics and medtech to satellite technology. My biggest accomplishment is that I initiated the basic ideas of SBR (Spectral Band Replication) and PS (Parametric Stereo) that made the extremely efficient HE-AAC codec a reality and a worldwide success. This lead to a trade sale of my company "Coding Technologies" to Dolby Laboratories, a sale that created quite some international attention in 2007.

Monday, February 24, 2014

Sweden to test DRM30 at 20kHz on FM Broadcast Band


The Swedes are set to test DRM+ and DRM30 on the FM broadcast band, also known as VHF band II. They will run DRM30 in the 20kHz mode, alone and in simulcast. I'll be anxious to see how well it works for them. Full description here and press release here.

Friday, February 21, 2014

Engineer advocates DRM as alternative for AM/MW and vacated TV channels

Here is a great "AM revitalization" submission to the FCC by engineer David L. Hershberger (W9GR). To a certain degree, he even advocates for DRM30 right in the AM/MW spectrum with this stinging anti-iBiquity comment:

"As long as analog AM exists, any all-digital system should be restricted to just one channel – not three as is the case with hybrid AM IBOC, which occupies ±15 kHz. In other words, the signal must be limited to ±5 kHz. The all-digital version of the current AM IBOC system occupies ±10 kHz, which still spans three channels. This is not acceptable. Increasing AM interference is not the way to revitalize AM. (If a digital AM signal occupies 20 kHz of bandwidth, it occupies that bandwidth continuously. Analog signals occupying 20 kHz only occupy the full bandwidth on a fleeting transient basis.) DRM offers options which fit within a ±5 kHz channel."

 Thanks to Alan for the tip on this one!